WO2009123001A1 - Print tone control assisting method and apparatus, and print tone control method and apparatus - Google Patents

Print tone control assisting method and apparatus, and print tone control method and apparatus Download PDF

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Publication number
WO2009123001A1
WO2009123001A1 PCT/JP2009/056075 JP2009056075W WO2009123001A1 WO 2009123001 A1 WO2009123001 A1 WO 2009123001A1 JP 2009056075 W JP2009056075 W JP 2009056075W WO 2009123001 A1 WO2009123001 A1 WO 2009123001A1
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WIPO (PCT)
Prior art keywords
color
printing
pattern
monitor
color tone
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Application number
PCT/JP2009/056075
Other languages
French (fr)
Japanese (ja)
Inventor
先男 中村
衆一 竹本
郁夫 尾崎
建介 中村
勝彦 林
Original Assignee
三菱重工業株式会社
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Application filed by 三菱重工業株式会社 filed Critical 三菱重工業株式会社
Publication of WO2009123001A1 publication Critical patent/WO2009123001A1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F33/00Indicating, counting, warning, control or safety devices
    • B41F33/0036Devices for scanning or checking the printed matter for quality control
    • B41F33/0045Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46Colour picture communication systems
    • H04N1/56Processing of colour picture signals
    • H04N1/60Colour correction or control
    • H04N1/603Colour correction or control controlled by characteristics of the picture signal generator or the picture reproducer
    • H04N1/6052Matching two or more picture signal generators or two or more picture reproducers

Definitions

  • the present invention relates to a support method and apparatus for print color control that makes a print color tone close to a target print sample, and a print color management method and apparatus.
  • the actual color can be printed and the result can be visually checked and printed in the desired color. If not, it is necessary to adjust the ink supply amount so as to obtain a desired color.
  • the ink supply amount is not appropriate. In this case, the printing operator must perform color matching while adjusting the ink supply amount, and the operator requires skill, It was a big work burden. In addition, the printed paper is damaged until the color matching is completed.
  • a color tone control technique has been proposed in which even an inexperienced operator can reduce the color matching time with a minimum amount of paper and approximate a printed matter to a print target (see Patent Document 1). ).
  • a monitor display display device, hereinafter simply referred to as a monitor
  • a proof image 102a printed from the print data using an ICC profile that matches the printing conditions is displayed in a simulation so as to change according to the adjustment of the ink supply amount in the printing machine 101.
  • the color tone control device 100 is calculated from an arithmetic device (device main body) 104 that predicts the adjustment amount of ink necessary to match both colors. Is configured.
  • the printing machine 101 is equipped with an ink key 101a for adjusting the ink supply amount.
  • the color tone control apparatus projects the color of the proof print (proof image, print sample) 102a on the monitor 102 (step a10), performs printing (step a20), and is obtained by this printing.
  • the operator visually determines whether the color of the printed product 103 matches the color of the proof 102a displayed on the monitor 102 (step a30).
  • the color tone control is completed, and normal printing is performed as it is.
  • the simulation operation of the ink key 101a of the printing machine 101 (not the actual operation of the ink key 101a) is performed, and the calibration displayed on the monitor is displayed.
  • the printing color is adjusted so as to match the color of the printed material 103 (step a40).
  • a correspondence table between the ink key opening and the pattern density is used.
  • Patent Document 1 has an advantage that a sensor (colorimeter) for detecting the color of a printed material is not required, there are the following problems.
  • the operator visually determines the color by comparing the actual color of the printed matter 103 with the color of the image displayed on the monitor 102, so that it is difficult to make an appropriate determination. That is, while the color of the printed material 103 is a reflection color, the color displayed on the monitor 102 is a transmission color, so it is difficult for humans to compare these different colors.
  • reflection color the hue changes depending on the illumination that is irradiated, but in the case of transmission color, the hue basically does not change when viewed from the screen, but the contrast between the two depends on the position and angle at which the monitor is viewed. The result will change. For this reason, matching between the monitor screen and the printed material is difficult, and it is difficult to make an appropriate judgment.
  • the simulation key operation is not linked to the actual ink key opening.
  • the relationship between the monitor display color and the ink key opening Therefore, it is necessary to calculate the ink key operation amount ⁇ K and drive the ink key. In this respect, a simpler configuration is also desired.
  • the data for color matching (correspondence table between ink key opening and pattern density) is a pre-defined rule and does not take into account data updating for color matching accuracy.
  • the present invention has been devised in view of such problems, and a printing color tone control support method and apparatus, a printing color tone management method, and a printing color tone management method, which are capable of making a print color matching determination more easily and appropriately.
  • An object is to provide an apparatus.
  • a printing color tone control support method includes a target color picture display step for projecting a picture to be printed by a printing machine on a monitor screen as a target color picture with a color tone of a printing sample, and the printing The printed matter printed by the machine is measured by a sensor, and the measured colorimetric value is applied to each device profile of the sensor and the monitor, and the detected color pattern is detected by the color tone measured by the sensor.
  • the pattern data of the pattern to be printed is applied to each device profile of the print sample and the monitor and projected in the color tone of the print sample.
  • an image obtained by measuring the color of the print sample with the sensor is preferably displayed on the screen of the monitor.
  • the simulated changed color pattern display step it is preferable that the simulated changed color pattern is displayed on a screen having the same color development characteristics as the target color pattern and the detected color pattern of the monitor.
  • the simulated change amount input operation member is an actual ink supply amount adjustment operation member of the printing press, and the simulated change color picture display step receives the information of the ink supply amount adjustment operation member and performs the simulated change. It is preferable to project a color pattern on the screen of the monitor.
  • the parameter corresponding to the ink supply amount is preferably at least one of an ink key opening, an ink original roller rotation number, a number of calls of an ink call roller with respect to a plate cylinder rotation, and a discharge amount of a digital ink pump.
  • the printing press is preferably a sheet-fed printing press.
  • the printing color tone management method of the present invention implements the printing color tone control support method, and also displays the target color pattern and the simulated change color displayed on the screen having the same color development characteristics in the simulated change color pattern display step.
  • a picture to be printed by the printing machine is displayed on the screen of the monitor as a target color picture with a color tone of a printing sample, and the picture data of the picture to be printed is displayed on the printing machine and the monitor.
  • the target image displayed in the pre-printing pattern display step for displaying the pattern to be printed on the printing machine as an assumed color pattern when the printing machine prints the pattern to be applied to each of the device profiles, and the pre-printing pattern display step A pre-color matching step of manipulating the simulated change amount while comparing the color pattern and the assumed color pattern to change the ink supply by simulation, and matching the color tone of the assumed color pattern to the color tone of the target color pattern, A preset that presets the actual ink supply amount in accordance with the simulated change amount operated in the pre-color matching step before printing is started.
  • the simulation change color picture display step and the color matching step are performed after the printing machine is stopped after printing by the printing machine. It is preferable that the simulated change color picture display step and the color matching step are performed while continuing printing by the printing machine.
  • the device profiles of the printer, the sensor, and the monitor, or the device profiles of the printer, the sensor, the monitor, and the print sample are stored in advance in a database, and the color matching step and / or the event. It is preferable to update the corresponding device profile stored in the database based on the ink supply amount color-matched in the previous color matching step.
  • the printing color tone control support device of the present invention includes a monitor and an image control unit that controls an image displayed on the screen of the monitor, and the image control unit is a color tone of a print sample of a picture to be printed by a printing press.
  • a target color pattern, a detected color pattern that is a color tone obtained by applying a color measurement value obtained by measuring a color of a printed matter printed by the printing press to the device profile of the sensor and the monitor, and ink supply of the printing press The simulated change amount of the amount is applied to each device profile of the printing machine and the monitor including the relationship between the ink supply amount and the color value, and the detected color pattern is changed to a color tone according to the simulated change of the ink supply amount. Control is performed so that a simulated change color pattern to be changed is displayed on one screen of the monitor.
  • the image control unit preferably causes the pattern data of the pattern to be printed to act on each device profile of the print sample and the monitor, and displays the image data on the screen of the monitor in the color tone of the print sample.
  • the image control unit preferably projects the simulated changed color pattern on a screen having the same color development characteristics as the target color pattern and the detected color pattern of the monitor.
  • the simulated change amount input operation member is an actual ink supply amount adjustment operation member of the printing press, and the image control unit receives the information of the ink supply amount adjustment operation member and displays the simulated change color pattern. It is preferable to project on the screen of the monitor.
  • the parameter corresponding to the ink supply amount is preferably at least one of an ink key opening, an ink original roller rotation number, a number of calls of an ink call roller with respect to a plate cylinder rotation, and a discharge amount of a digital ink pump.
  • the printing press is preferably a sheet-fed printing press.
  • the printing color tone management apparatus of the present invention operates the simulated change amount while comparing the target color picture displayed on the screen having the same color development characteristics and the simulated change color picture with the print color tone control support apparatus.
  • the ink supply amount is simulated, and a color matching unit that automatically matches the color tone of the simulated changed color pattern to the color tone of the target color pattern is provided.
  • the color matching unit performs a process of automatically matching the color tone of the simulated change color pattern to the color tone of the target color pattern by stopping the printing machine after printing by the printing machine. It is also preferable that the color matching unit performs a process of automatically matching the color tone of the simulated changed color picture to the color tone of the target color picture while continuing printing by the printing press.
  • the device profiles of the printing machine, the sensor, and the monitor, or the device profiles of the printing machine, the sensor, the monitor, and the print sample are stored in advance in a database and color-matched by the color matching unit. It is preferable to provide a device profile update unit for updating the corresponding device profile stored in the database based on the ink supply amount.
  • the simulated change amount of the ink supply amount of the printing press is applied to each device profile of the printer and the monitor including the relationship between the ink supply amount and the color value.
  • a simulated changed color pattern obtained by changing the detected color pattern to a color corresponding to the simulated change of the ink supply amount is obtained, and this simulated changed color pattern is displayed on the screen having the same color development characteristics as the target color pattern of the monitor.
  • both patterns are completely unaffected by ambient light disturbance, and the color depending on the position and angle of viewing the monitor. The difference is as small as possible.
  • the simulated change color pattern is generated based on the detected color pattern obtained by measuring the color of the printed matter printed by the printing press with a sensor, the simulated change color pattern can be accurately projected on the monitor screen. From this point, it is possible to appropriately make a simulated change.
  • the pattern data of the picture to be printed is applied to each device profile of the print sample and the monitor, thereby ensuring the color tone of the print sample. Can be projected.
  • the pattern printed by the printing machine can be easily and reliably displayed as the target color pattern in the color tone of the print sample.
  • the simulated change color pattern together with the target color pattern and the detected color pattern on the screen of the same color development characteristic of the monitor, it is possible to visually compare the detected color pattern and the simulated change color pattern obtained by simulating and changing it.
  • the simulation change operation can be appropriately performed while referring to the screen.
  • the input operation member of the simulated change amount is the actual ink supply amount adjustment operation member of the printing press, by performing the actual ink supply amount adjustment operation of the printing press, even if the actual printing is not performed, The operator can adjust the ink supply amount appropriately and easily without a sense of incongruity by the actual ink supply amount adjustment operation.
  • the target color is assumed as the assumed color pattern when the pattern data to be printed is applied to each device profile of the printer and monitor and the pattern to be printed by the printer is printed.
  • the color tone of the picture printed from the beginning of printing can be brought close to the target color tone (target color picture), and more appropriate printing can be carried out more quickly, reducing printing time and reducing waste paper. Contribute to.
  • the printing machine can be stopped to further promote the reduction of waste paper.
  • the printing machine is a sheet-fed printing machine, usually, after printing a certain number of copies, the printing machine is stopped and the printing status is checked (including registration and color tone checking). If this is done, the printing state can be checked efficiently, the number of times the printing machine is stopped can be reduced, and the printing time and paper loss can be reduced.
  • color matching is performed by simulated change so as to approach the target color pattern based on the detected color pattern obtained during printing. It will be.
  • the detected color pattern can be updated at a predetermined cycle, and it is conceivable to operate the actual ink supply amount so as to approach the target color pattern while viewing the detected color pattern obtained in substantially real time.
  • the actual ink supply amount changes with a certain response delay after the change operation, if the response delay is ignored and an attempt is made to bring the real-time detected color pattern closer to the target color pattern, the change operation will be excessive. As a result, it may take time for the ink supply amount to be appropriate.
  • FIG. 1 is an explanatory diagram for explaining main functions of a printing color tone control support device and a printing color tone management device according to the first embodiment of the present invention.
  • FIG. 2 is an explanatory diagram illustrating one function of the print color tone control support apparatus and the print color management apparatus according to the first embodiment of the present invention.
  • FIG. 3 is a configuration diagram of the print color tone control support device and the print color tone management device according to the first embodiment of the present invention.
  • FIG. 4 is a flowchart for explaining the print color tone control support method and print color tone management method according to the first embodiment of the present invention.
  • FIG. 5 is a flowchart for explaining the print color tone control support method and print color tone management method according to the first embodiment of the present invention.
  • FIG. 6 (a) and 6 (b) are diagrams for explaining the database according to the first embodiment of the present invention.
  • FIG. 6 (a) shows the first example
  • FIG. 6 (b). Shows a second example.
  • FIG. 7 is a view for explaining updating of the database according to the first embodiment of the present invention.
  • FIG. 8 is a diagram for explaining updating of the database according to the first embodiment of the present invention.
  • FIG. 9 is a view for explaining updating of the database according to the first embodiment of the present invention.
  • FIG. 10 is a diagram for explaining the update of the database according to the first embodiment of the present invention.
  • FIG. 11 is a diagram for explaining creation and update of a database according to the first embodiment of the present invention.
  • FIG. 12 is a time chart for explaining the print color tone control support method and print color tone management method according to the first embodiment of the present invention.
  • FIG. 13 is a schematic time chart for explaining a printing color tone control support method and a printing color tone management method according to the second embodiment of the present invention.
  • FIG. 14 is a schematic time chart for explaining the effects of the printing color tone control support method and the printing color tone management method according to the second embodiment of the present invention.
  • FIG. 15 is a schematic side view showing a main configuration of a printing press according to a modification of the second embodiment of the present invention.
  • FIG. 16 is an explanatory diagram for explaining the main functions of the print color tone control support apparatus according to the background art.
  • FIG. 17 is a flowchart for explaining a printing color tone control support method according to the background art.
  • FIGS. 1 to 12 show a printing color tone control support apparatus and method according to the first embodiment of the present invention, which will be described with reference to these drawings. (Device configuration) First, a print color tone control support apparatus according to the present embodiment will be described.
  • the printing color tone control support apparatus can be applied to various printing machines that perform printing using a printing plate, such as an offset rotary printing machine and a sheet-fed printing machine.
  • the printing color tone control support apparatus is applied to a sheet-fed printing machine.
  • the printing color tone control support device includes a design color tone management device main body (a design color tone management terminal or a calculation device) 11 which is a main element of the design color tone management device, and the device main body 11.
  • a monitor display (image display device, hereinafter simply referred to as a monitor) 12 for displaying an image based on information from the sensor, a sensor (colorimeter, here, a scanner) 14 for measuring the color of the printed matter 15, and a database 31-33.
  • a touch panel 19a is attached to the screen 12a of the monitor 12, and an ink supply zone is displayed for each of the first to third images on the screen 12a.
  • the switch 19b is displayed on the touch panel 19a, and the displayed colors [CYAN (blue), BLUE (blue), MAGENTA (red), RED (red), YELLOW) are displayed.
  • the ink amount in the ink supply zone can be commanded to increase or decrease.
  • the apparatus main body 11 receives each ink color [k (black; black), c (cyan; indigo), m (magenta; red), y (yellow; yellow) from the pattern (plate making) data from the plate making system 20. )],
  • the pattern information (gradation information, dot area ratio information) c, m, y, k of each part of the printing pattern of each ink color is obtained as the separation pattern data (plate making data, image data, etc.)
  • a preset command is given in advance for the ink supply state of the printing machine 1 based on the correspondence relationship between preset pattern data (gradation, halftone dot area ratio) and ink supply amount (this functional element). Is a preset part).
  • the printing press 1 is provided with adjustment factors for adjusting the ink supply state, such as the ink key opening, the ink source roller rotation speed, the discharge amount of the digital ink pump, and the number of calls of the ink call roller with respect to the plate cylinder rotation speed.
  • the ink key opening is adjusted here.
  • the ink supply state is adjusted by adjusting any one of the adjustment factors such as the opening degree of the ink key 1a, the rotation speed of the ink original roller 1b, and the number of calls of the ink call roller 1c with respect to the rotation speed of the plate cylinder, or a combination thereof.
  • the ink key opening is used because a large number of ink keys are provided in the print width direction and the ink supply state can be adjusted for each ink key unit width (ink supply zone).
  • the apparatus main body 11 receives colorimetric information (measurement result data) of the printed matter 15 from the sensor 14.
  • the sensor 14 may be any sensor as long as it can detect the color of the printed matter 15 (a color value that is a value indicating the color development state).
  • the color values include color coordinate values such as L * , a * , b * (also simply referred to as Lab), spectral reflection spectrum values R ( ⁇ ), I (infrared light), R (red light), Each reflection density of G (Green light) and B (Blue light) can be used.
  • the sensor 14 will be described as a density sensor that detects R, G, and B as coloring values.
  • spectral spectral value R ( ⁇ ) is a color value
  • a spectral reflectometer may be applied to the sensor 14, and if the color coordinate value is a color value, a spectral reflectometer, a color difference meter, or the like is applied to the sensor 14. That's fine.
  • the image control unit 11b of the apparatus main body 11 displays an image (an image of a target color pattern) on a screen of the monitor 12 in which a pattern printed by a printing machine is displayed in a color tone of a print sample (also referred to as a proof print or a galley). ) 16 and the color of the printed matter 15 printed by the printing machine are measured by the sensor 14, and the measured colorimetric values are applied to the device profiles of the sensor 14 and the monitor 12.
  • the image (image of the detected color pattern) 17 projected on the screen and the simulated change amount of the ink supply amount of the printing press are applied to each device profile of the printer and the monitor including the relationship between the ink supply amount and the color value.
  • the image 16 of the target color pattern (that is, the print pattern projected in the color tone of the print sample) is obtained by applying the pattern data of the print pattern to the print sample (printer that printed the print sample) and each device profile of the monitor 12. Alternatively, it may be displayed in the color tone of the print sample, or an image obtained by directly scanning the print sample with the sensor (scanner) 14 may be displayed.
  • the image control unit 11b presets the ink supply amount, that is, the opening degree of each ink key 1a in advance to an existing preset value. In this embodiment, the preset value is also set in advance (print start). Adjustment is made to the previous).
  • the image control unit 11b displays an image (an image of a target color pattern) 16 that displays a pattern to be printed by the printing machine 1 in the color tone of the printing sample on the screen 12a of the monitor 12 before starting printing by the printing machine 1.
  • the image data of the pattern to be printed is applied to each device profile of the printing machine 1 and the monitor 12, and the printing machine 1 uses the pattern to be printed as an existing preset value (previously updated preset value or default value).
  • the image is generated so that the image (image of the assumed color pattern) 17 ′ displayed in the color tone when printed according to 1 is displayed side by side at the same time.
  • the image of the target color pattern (monitor proof image) 16 projected on the same screen of the monitor 12 is compared with the image 17 'of the assumed color pattern, and the detected color pattern exceeds the allowable limit with respect to the target color pattern. If there is a large difference in color tone, the preset value is simulated. At this time, the operator can set the screen to the preset value change mode and perform a simulated change of the preset value, that is, an ink supply state adjustment operation (for example, an ink key opening change operation).
  • an ink supply state adjustment operation for example, an ink key opening change operation
  • this preset value change mode as shown in FIG. 1, three images, a target color picture image 16, a simulated change color picture image 18 ', and an assumed color picture image 17' are displayed side by side.
  • the image 18 ′ is initially displayed in the same manner as the image 17 ′ of the assumed color pattern, and then the color change that occurs when the preset value is changed according to the simulation change of the preset value is simulated change color This is added to the pattern image 18 '.
  • the change in color according to the change in the ink key opening of the printing machine 1 that is, the change in the ink film thickness on the printing surface in accordance with the change in the ink key supply amount. Since the relationship between the ink key opening of the machine 1 and the color is prepared as a device profile of the printing machine 1, it can be used to change the simulated change color pattern according to the preset value change (simulated change of the ink key opening).
  • the color of the image 18 ′ is changed.
  • the target color picture image 16, the assumed color picture image 17 ′, the simulated change color picture image 18 ′, and the assumed color picture image 17 ′ are arranged in this order on the same screen of the monitor 12.
  • the target color pattern image 16 and the simulated change color pattern image 18 ' are adjacent to facilitate visual comparison.
  • the arrangement of the display images is not limited to this, but from one end of the screen.
  • the target color picture image 16, the assumed color picture image 17 ′, and the simulated change color picture image 18 ′ may be displayed in this order, and the target color picture image 16 is arranged in the center of the screen, and on both sides thereof.
  • An image 17 of the assumed color pattern and an image 18 ′ of the simulated change color pattern may be arranged.
  • the simulated change of the preset value is performed through an operation member that changes the actual ink supply amount, that is, a switch 19b of the touch panel 19a or an ink key opening operation member of a sheet panel provided in the printing operation panel.
  • the preset value of the ink supply amount (ink key opening) is obtained by using a preset function (API function) that associates the pattern line drawing rate and the ink supply amount included in the device profile of the printing press with the image image data (API function).
  • API function preset function
  • the reason why the preset value is changed in this way can be determined because the current preset function is not optimal for this printing. Therefore, in the present embodiment, the preset function is updated and corrected to a more appropriate preset function based on the ink supply amount (ink key opening) obtained by the simulation change of the preset value. This will be described later.
  • each of the target color picture image 16, the assumed color picture image 19, and the simulated changed color picture image 18 ′ is an equivalent color image. If it is not displayed, it cannot be properly compared. Therefore, in the image control unit 11b, the image 16 of the target color pattern is added to the pattern image data by the print sample profile (target profile, print sample profile) which is the color characteristic of the sample of the printed matter 15 and the color characteristic of the monitor 12. It is generated by acting a certain image display profile (monitor profile).
  • the assumed color pattern image 19 includes, in the pattern image data, a printing machine profile of the printing machine 1 (a printing device profile group selected by an ink supply amount and a line drawing rate for each key zone) and a color characteristic of the monitor 12. It is generated by acting a certain image display profile (monitor profile).
  • the simulated changed color pattern image 18 ′ includes an assumed color pattern, a printing machine profile (a printing device profile group selected based on an ink supply amount and a line drawing rate for each key zone), and a monitor 12.
  • the image display profile (monitor profile) which is the color characteristic of the image, is generated so as to change the color tone according to the change operation of the ink supply amount. Each profile is used by calling from the databases 31 to 33 (or 30 if not distinguished).
  • the color of the printed matter 15 is measured by the sensor 14, and the color measurement information (measurement result data) is taken into the image control unit 11b.
  • a color 17 corresponding to the colorimetric value that is, an image 17 of a detected color pattern which is an image of the color of the actual printed matter is generated and displayed on the screen 12a of the monitor 12. Also in this case, the image 16 of the target color pattern and the image 17 of the detected color pattern are displayed on the screen 12a of the monitor 12 at the same time.
  • a simulation change mode for simulating and changing the color development can be selected.
  • the simulation change mode is selected for the display of the image 17 of the detected color pattern
  • the image control unit 11b performs the simulation change of the ink supply amount.
  • An image 18 of a simulated change color pattern whose color development state is changed in response to is additionally displayed.
  • the simulation change mode may be selected when information on the simulation adjustment operation of the ink supply state (change operation of the ink key opening) is entered by the operator.
  • This simulated change color picture 18 is based on the detected color picture 17 and changes the color of the detected color picture 17 in accordance with the simulated change in the ink supply amount. Also in this case, the target color pattern image 16 and the simulated change color pattern image 18 are adjacent to facilitate visual comparison. However, the display arrangement is not limited to this. From one end side, the target color picture image 16, the detected color picture image 17, and the simulated change color picture image 18 may be displayed in this order.
  • the image 16 of the target color pattern includes the print sample profile (target profile, print sample profile) which is the color characteristic of the sample of the printed material and the color characteristic of the monitor 12 in the pattern image data.
  • the image 16 of the target color pattern includes the print sample profile (target profile, print sample profile) which is the color characteristic of the sample of the printed material and the color characteristic of the monitor 12 in the pattern image data.
  • the detected color picture image 17 is generated by applying the sensor profile as the color characteristic of the colorimeter 14 and the image display profile (monitor profile) as the color characteristic of the monitor 12 to the picture image data.
  • the image 18 of the simulated change color pattern includes, on the detected color pattern, a printing machine profile (a printing device profile group selected by an ink supply amount and a line drawing rate for each key zone) that is a color characteristic of the printing machine 1 and the monitor 12.
  • the image display profile (monitor profile), which is a color characteristic, is applied to generate the color tone according to the ink supply amount changing operation. Also in this case, each profile is called from the databases 31 to 33 (or 30 if not distinguished) and used.
  • the apparatus main body 11 has a function (data update) for updating the correspondence relationship (each profile) stored in the database 30 based on the ink supply amount at that time when the color tone appropriate information is received after the ink supply amount adjustment operation information. Part) 11d.
  • the database 30 for each printing material (each type of ink, printing paper, blanket, etc.), for example, as shown in FIGS. 6 (a) and 6 (b), the ink key opening (Kk, Kc, Km, Ky) and the image rate (Ak, Ac, Am, Ay), and each ICC data [for example, pattern data (k, c, m, y) and color space coordinate values (L * , a * , b * ) The relationship between the two is related.
  • FIGS. 7 to 9 show L * , a * and b * for cyan c, respectively.
  • the design data (k, c, m, y) and the drawing rate (Ak, Ac, Am, Ay) of the key zone are used as parameters for each design data (k,
  • the color coordinate values of c, m, y) for example L *, a *, b *, can be corrected by the scanner input image of the current printed matter.
  • the device profile is updated by the following procedure.
  • the Lab of the current printed matter is obtained by applying the signal RGB of the color measurement sensor (scanner) to the scanner profile (Lab ⁇ RGB).
  • the pattern data (k, c, m, y) of the current printed material is known, the Lab value of the current printed material corresponding to the pattern data (k, c, m, y) is thereby known.
  • the ICC profile can be updated by the correspondence between the pattern data (k, c, m, y) and the Lab value.
  • the key opening and drawing rate are parameterized from the above data.
  • the updated device (ICC) profile can be updated.
  • the key opening A is set from the point P1 that becomes the Target color value in the default curve of the target profile. If the target profile is correct, a Target color value can be obtained at this key opening A, but if the target profile is not correct, the color value deviates from the Target color value at this key opening A.
  • a profile curve along this point P2 is set, and this is used as the learning change curve. And it prints with the key opening degree E (refer point P3) corresponding to the Target coloring value on this learning change curve. If the learned profile (learning change curve) is correct, a target color value can be obtained at this key opening E. If this profile is not correct yet, the above processing is repeated once again to update learning.
  • the database 30 has image data (k, c, Ky, K, K, Km) and image data (k, c, Am, Ay) as parameters.
  • m, y) and the color coordinate values (L *, a *, b *), the ink key opening degree (Kk, Kc, Km, Ky) and the image area ratio (Ak, Ac, Am, Ay) are parameters ICC Profile data is created as a data group and updated as appropriate.
  • the apparatus main body 11 is provided with a function (color matching unit) 11e for automatically performing color matching by the above-described operator.
  • the color matching unit 11e has a target color picture image. If the difference (color difference) between the 16 colors and the color of the detected color picture image 17 exceeds an allowable limit, the ink supply amount (including preset values) is adjusted according to the color difference. Also in this case, if the profile of the printing machine 1 is used, the ink supply amount or the change amount of the ink supply amount can be easily calculated so that the color difference is within the allowable limit.
  • plate making data is acquired (step s10, acquisition step), and the ICC profile of the print sample (proof print, galley) is applied to the pattern data to obtain the color of the print sample (
  • the target color picture image 16 is displayed on the screen 12a of the monitor 12 (step s20, target color picture display step).
  • the print sample is directly scanned (colorimetry) by the scanner 14 (step s10 ′, acquisition step), and the color of the print sample is determined from the scan (colorimetry) information.
  • Image of target color picture) 16 may be displayed on the screen 12a of the monitor 12. That is, the scanner output RGB is applied to the scanner profile RGB ⁇ Lab to calculate Lab, and this Lab is applied to the monitor profile Lab ⁇ R′G′B ′ to obtain R′G′B ′ and display it on the monitor. be able to.
  • the drawing rate of each key zone is calculated from the plate-making data (pattern image data) (step s30, drawing rate calculation step), and then a picture image of each ink key zone is used using a preset function (API function).
  • Each ink key is preset to the ink key opening corresponding to the linearity (step s40, preset step).
  • the color of the assumed printed matter (assumed color picture image 17 ′) corresponding to the preset ink key opening is displayed on the screen 12a of the monitor 12 (step s50).
  • a default ICC profile database using the ink key opening and the image line ratio as parameters is used.
  • the color corresponding to the ink key opening is the amount of ink supplied to the printing surface (in other words, the ink film thickness) according to the ink key opening, and this ink supply amount (ink film thickness). It is an ink color that is emitted in response to. In other words, as the ink film thickness increases, the color development of the ink becomes stronger, and as the ink film thickness decreases, the color development of the ink weakens. Since the color tone changes, the color tone changes if each ink key opening is adjusted.
  • the screen 12a of the monitor 12 displays the color of the print sample (target color pattern image) 16 and the color of the printed matter (the assumed color pattern image 17 ') corresponding to the preset ink key opening. . Based on this comparison display, the color of the printed material (image 17 ′ of the assumed color pattern) corresponding to the preset ink key opening displayed on the screen 12a of the monitor 12 matches the color (first image) 16 of the print sample. (Step s60, determination step).
  • Step s70 preliminary color matching step
  • the operator refers to the color of the image 18 ′ of the simulated color changing pattern 18 ′ that is displayed on the monitor and changes the color of the image 17 ′ of the assumed color pattern according to the ink key opening adjustment. It can be easily matched to the color.
  • step s80 printing step
  • the printing is stopped by performing the minimum number of sheets. For example, in the case of sheet-fed printing, since the printing press can be easily stopped, about 10 to 100 test prints are usually performed for register and color matching, and repeated several times until the color and register are matched. Therefore, in the case of sheet-fed printing, printing is stopped while following the conventional procedure.
  • the color of the obtained printed matter 15 is scanned (colorimetric) by the scanner 14 (step s90, colorimetric step), and the color image (detected color pattern) of the printed matter 15 is obtained from this scan (colorimetric step) information. ) 17 is displayed on the screen 12a of the monitor 12 (step s100, detected color picture display step).
  • the color image (target color pattern) 16 of the print sample and the color image (detected color pattern image) 17 of the printed matter 15 are displayed in contrast on the screen 12 a of the monitor 12. Based on this contrast display, whether the color image (target color picture image) 16 of the print sample displayed on the screen 12a of the monitor 12 matches the color image (detected color picture image) 17 of the printed matter 15 or not. Is determined (step s110, determination step).
  • the current ink key opening and image line are determined.
  • the database (default ICC profile database using the ink key opening and the image line rate as parameters) is updated based on the rate and the color data acquired by the scanner this time (step s120, database update step). Then, the operator adjusts the ink key opening (step s130, post-printing color matching step, simulated change color picture display step).
  • the simulated change color is displayed while referring to the color of the image 18 of the simulated change color picture and the color of the print sample (target color picture image) 16 that are displayed on the monitor and change in color according to the ink key opening adjustment.
  • the color of the pattern image 18 can be easily matched to the color of the print sample (target color pattern image) 16. Further, when displaying an image on this monitor, by using a database that has been updated recently, more accurate color display can be performed, and color matching can be performed with higher accuracy.
  • the operator can adjust the color matching without any sense of incongruity by the actual ink supply amount adjustment operation. Can do. Thereafter, the printing step (step s80), the color measurement step (step s90), and the second display step (step s100) are performed again, and the color of the simulated modified color pattern image 18 is the target color pattern image 16 of the print sample. Steps s110, s120, s130, s80, s90, and s100 are repeated until the color matches.
  • the target color picture image 16 of the print sample and the image 17 of the detected color picture are displayed in contrast on the same screen 12a, and on this screen 12a. Furthermore, since the image 18 of the simulated change color pattern whose color changes according to the ink key opening adjustment is displayed in comparison, the operator can easily match the print color with the color of the print sample of the monitor while referring to this. Can do. In addition, since printing is stopped once a small number of prints are made and color matching is performed, there is less loss of paper.
  • This database is organized by printing materials (ink type, paper type, blanket type, etc.) and, if necessary, environmental conditions (ambient temperature / humidity, dampening water temperature, ink temperature, roller group temperature, etc.). In the next printing, it is selected as necessary.
  • the ink supply amount (preset value) is set so that the difference (color difference) between the color of the target color picture image 16 and the color of the detected color picture image 17 is within the allowable limit. Therefore, the operator can monitor the automatic adjustment while visually observing the target color pattern image 16 of the print sample and the images 18 and 18 'of the simulated change color pattern on the same screen. That's fine.
  • the printing color tone control support device is applied to a sheet-fed printing machine, as shown in FIG. 12, the printing machine is usually started and a predetermined number of sheets (for example, about 10 to 100 sheets) is printed. (Adjustment printing) is performed by adjusting the printing press (for example, registering), then starting the printing press again, printing a predetermined number of prints, and then re-adjusting the printing press. Is completed (FIG. 12 shows a case where printing for adjustment is performed three times), and normal printing (main printing) is started.
  • a predetermined number of sheets for example, about 10 to 100 sheets
  • Adjustment printing is performed by adjusting the printing press (for example, registering), then starting the printing press again, printing a predetermined number of prints, and then re-adjusting the printing press. Is completed (FIG. 12 shows a case where printing for adjustment is performed three times), and normal printing (main printing) is started.
  • the print color tone control support and the print color tone control are performed by checking the preset value of the ink supply amount before the first adjustment printing, using the processing unique to the sheet-fed printing press.
  • the result preset value needs to be updated (modified)
  • the color tone of the actual printed matter can be made very close to that of the print sample at the start of printing. Then, the color tone of the actual printed matter printed by the printing press 1 is measured by the sensor 14 and checked against the color tone of the print sample on the same monitor screen. If the ink supply amount needs to be adjusted, the ink supply amount is adjusted.
  • the result of the simulation adjustment is reflected in the ink supply amount at the time of actual printing, printing is performed again by the printing machine 1, and the color tone of the actual printed matter obtained by this is again measured by the sensor 14. Measure and check against the color tone of the print sample on the same screen. Further, if necessary, the ink supply amount is simulated and the above process is repeated. As a result of the comparison and confirmation, if it is determined that the color tone of the actual printed matter is sufficiently close to the print sample (OK), normal printing (main printing) is started.
  • the color tone of the actual printed material is checked against the color tone of the print sample on the same monitor screen, the color tone of the actual printed material can be brought close to the color tone of the print sample with high accuracy, and the print quality can be improved. A big contribution.
  • the ink supply amount is simulated and adjusted while comparing the actual color tone of the printed matter with the color tone of the print sample, the color of the image 18 of the simulated change color pattern is compared with the color of the target color pattern image 16. Because it can be adjusted with high precision, at least with regard to color tone control (color matching), the number of adjustment printings can be made smaller, reducing paper loss and shortening the printing time (especially the adjustment time before actual printing). it can.
  • the printing press to which the printing color tone control support and the printing color tone control are applied is a rotary press such as a newspaper or a commercial offset rotary printing press, and the printing color tone is printed while continuously printing the printing press.
  • the preset value of the ink supply amount is checked before the printing machine is started.
  • the result preset value needs to be updated (corrected), it is updated so that the actual color tone of the printed matter is very close to the print sample at the start of printing.
  • the predetermined timing is a timing at which the printing state is waited after the low-speed operation is started, and can be given as a point in time after a predetermined time has elapsed after the start of the low-speed operation from the characteristics of the printing press.
  • the pattern measured by the sensor 14 is displayed as a detected color pattern on the same screen of the monitor 12 in comparison with the target color pattern, and the color is confirmed by comparing the color tone of the detected color pattern and the target color pattern. If it is necessary to adjust the ink supply amount, the ink supply amount is simulated, and then the result of the simulation adjustment is reflected in the ink supply amount at the time of actual printing (in FIG. Print again on the printing press, and measure the color tone of the actual printed material obtained by this again with the sensor 14 and check it against the color tone of the print sample on the same screen. Perform the simulation adjustment and repeat the above process.
  • FIG. 13 shows a case where it is determined that the color tone of the actual printed matter is sufficiently close to the print sample (OK) by one simulation adjustment, but there are cases where a plurality of simulation adjustments are required. Conceivable. As described above, when it is determined that the color tone of the actual printed matter is sufficiently close to the print sample, the operation speed of the printing press is increased to start normal printing (full printing).
  • the printing color tone control support and the printing color tone control (color matching) such as the simulated change color pattern display according to the present embodiment are performed as described above, the detected color obtained during printing while continuing printing by the printing press. Based on the design, color matching is performed by a simulation change so that it is close to the target color design. On the other hand, since the detected color pattern can be captured at a predetermined cycle, the actual ink supply amount is adjusted so that it approaches the target color pattern while observing the detected color pattern obtained in substantially real time. It is also possible to operate.
  • a sensor (colorimeter) 14 ′ for measuring the color of the printed matter 15 ′ is provided on-line immediately downstream of the printing unit 1A ′. While continuously measuring the color of ′, the ink supply amount is adjusted by feedback so that the detected color pattern measured by the pattern color tone management device body (arithmetic unit) 11 ′ approaches the target color pattern, and the printed pattern A technology for controlling the color tone of the image has been developed.
  • the printing unit 1A ′ has a plate cylinder of four process colors of k (black; black), c (cyan; indigo), m (magenta; red), and y (yellow; yellow).
  • the blanket cylinder 3 is disposed on both sides of the travel path of the web (continuous paper) that becomes the printed matter 15 ', and the sensor (colorimeter) 14 is located immediately downstream of the final color (here, y (yellow; yellow)).
  • 'Is arranged.
  • the present invention can also be applied to such a technique. That is, when the on-line sensor 14 'is provided, it is possible to continuously obtain the detected color pattern in real time, so that it is possible to manage printing while displaying the detected color pattern that can change from moment to moment on the monitor 12. . Therefore, the operator switches the color tone management from the automatic mode to the manual mode and observes the detected color pattern displayed on the monitor 12 in real time so that the color of the detected color pattern displayed is closer to the color of the target color pattern.
  • the supply amount can be adjusted manually.
  • embodiment of this invention is not limited to the above-mentioned thing.
  • three examples of the image displayed on the monitor 12 at the time of the simulation change are the target color picture image 16, the assumed color picture image 17 ′, and the simulated change color picture image 18 ′, or
  • the target color picture image 16, the detected color picture image 17, and the simulated change color picture image 18 are displayed side by side on the same screen.
  • the assumed color picture image 17 ' is detected.
  • the image 17 of the color pattern is omitted, and the contrast display of the two images of the image 18 ′ of the simulated change color pattern that changes in accordance with the simulation change from the image 17 ′ of the assumed color pattern and the image 16 of the target color pattern, and the detected color pattern It is also possible to display two images, a simulated change color pattern image 18 and a target color pattern image 16 that change in accordance with the simulated change from the image 17.
  • these images 16, 17, 17 ', 18, 18' are displayed on the same screen of the monitor 12, but they are not necessarily displayed on the same screen of the monitor 12. Not. In other words, even if there are a plurality of monitors, if these monitors are properly calibrated so as to have the same color development characteristics, and these monitors are arranged close to each other, the image 16 is displayed on each monitor. , 17, 17 ', 18, 18' can be divided and displayed to obtain the same effect as described above.
  • the present invention can be widely applied to various printing machines that perform printing using a printing plate, such as a rotary offset printing press and a sheet-fed printing press.

Abstract

A print tone control assisting method and apparatus, and a print tone control method and apparatus determine matching of print colors more easily and adequately regardless of an observation environment, and control the amounts of inks supplied to match the matched colors. An image to be printed by a printer (1) is displayed with the tone of a print sample on a screen (12a) of a monitor (12) as a target color image. The colors of a printed matter (15) are measured with a sensor (14). The color measurement values influence the individual device profiles of the sensor (14) and the monitor (12), so that the color image is displayed with the measured tone on the monitor screen (12a) as a detected color image. Simulated changes in the amounts of the supplied inks influence the device profiles to change the tone of the detected color image to the tone according to the simulated changes in the amounts of the supplied inks, so that the detected color image is displayed on the monitor screen (12a) as a simulatively changed color image, thereby ensuring matching determination referring to the monitor screen (12a).

Description

印刷色調制御支援方法及び装置、並びに印刷色調管理方法及び装置Print color tone control support method and apparatus, and print color tone management method and apparatus
 本発明は、印刷色調を目標の印刷見本に近いものにする印刷色調制御のための支援方法及び装置、並びに印刷色調管理方法及び装置に関するものである。 The present invention relates to a support method and apparatus for print color control that makes a print color tone close to a target print sample, and a print color management method and apparatus.
 インキの供給量(即ち、印刷面上のインキの膜厚)を制御しながら印刷物の色調を制御する印刷機において、実際に印刷を行なってはその結果を目視して、所望の色に印刷できていなければ、インキの供給量を調整して所望の色になるように操作する必要がある。通常、印刷開始時には、インキ供給量が適正でない場合が多々あり、この場合、印刷オペレータはインキの供給量を調整しながら色合わせを行なわなくてはならず、オペレータには、熟練を要し、大きな作業負担になっていた。また、色合わせが完了するまでは印刷した用紙が損紙となってしまう。 In a printing machine that controls the color tone of printed matter while controlling the amount of ink supplied (that is, the film thickness of the ink on the printing surface), the actual color can be printed and the result can be visually checked and printed in the desired color. If not, it is necessary to adjust the ink supply amount so as to obtain a desired color. Usually, at the start of printing, there are many cases where the ink supply amount is not appropriate. In this case, the printing operator must perform color matching while adjusting the ink supply amount, and the operator requires skill, It was a big work burden. In addition, the printed paper is damaged until the color matching is completed.
 そこで、例えば経験の浅いオペレータでも、最小限の損紙でかつ色合わせ時間を短縮して、印刷物を印刷目標に近似させることができるようにする色調制御技術が提案されている(特許文献1参照)。
 この技術では、図16に示すように、印刷機101により印刷される印刷物の色と一致する画像を表示するようにカラーマッチングされたモニタディスプレイ(表示装置、以下、単に、モニタという)102と、この表示装置102に、印刷条件に合致したICCプロファイルを用いて印刷データから印刷されるプルーフ画像102aを印刷機101でのインキの供給量の調整に応じて変化するようにシミュレーション表示し、このシミュレーション表示した画像の色を印刷物103の色に一致するように変化させたときに両者の色が一致するのに必要なインキの調整量を予測する演算装置(装置本体)104とから色調制御装置100を構成している。なお、印刷機101にはインキ供給量を調整するインキキー101aが装備される。
Therefore, for example, a color tone control technique has been proposed in which even an inexperienced operator can reduce the color matching time with a minimum amount of paper and approximate a printed matter to a print target (see Patent Document 1). ).
In this technique, as shown in FIG. 16, a monitor display (display device, hereinafter simply referred to as a monitor) 102 color-matched so as to display an image that matches the color of the printed matter printed by the printing press 101, On this display device 102, a proof image 102a printed from the print data using an ICC profile that matches the printing conditions is displayed in a simulation so as to change according to the adjustment of the ink supply amount in the printing machine 101. When the color of the displayed image is changed so as to match the color of the printed matter 103, the color tone control device 100 is calculated from an arithmetic device (device main body) 104 that predicts the adjustment amount of ink necessary to match both colors. Is configured. The printing machine 101 is equipped with an ink key 101a for adjusting the ink supply amount.
 かかる色調制御装置により、図17に示すように、モニタ102に校正刷り(プルーフ画像、印刷見本)102aの色を映し出して(ステップa10)、印刷を実施し(ステップa20)、この印刷により得られた印刷物103の色と、モニタ102に表示された校正刷り102aの色とが合っているかをオペレータが目視により判断する(ステップa30)。 As shown in FIG. 17, the color tone control apparatus projects the color of the proof print (proof image, print sample) 102a on the monitor 102 (step a10), performs printing (step a20), and is obtained by this printing. The operator visually determines whether the color of the printed product 103 matches the color of the proof 102a displayed on the monitor 102 (step a30).
 この結果、印刷物103の色とモニタ表示された校正刷りの色とが合っていれば、色調制御は終了し、そのままの状態で通常の印刷を実施する。一方、印刷物103の色とモニタ表示された校正刷りの色とが合っていなければ、印刷機101のインキキー101aのシミュレーション操作(実際のインキキー101aの操作ではない)をして、モニタ表示された校正刷りの色が印刷物103の色に合うように調整する(ステップa40)。この際、インキキー開度と絵柄濃度との対応表が用いられ、インキキー101aを操作したら、この操作に応じて変化する絵柄濃度を対応表から読み取って、モニタ表示の色が変更されて、インキキーのシミュレーション操作に応じた色がモニタ表示される。 As a result, if the color of the printed product 103 matches the color of the proof printed on the monitor, the color tone control is completed, and normal printing is performed as it is. On the other hand, if the color of the printed material 103 and the color of the proof printed on the monitor do not match, the simulation operation of the ink key 101a of the printing machine 101 (not the actual operation of the ink key 101a) is performed, and the calibration displayed on the monitor is displayed. The printing color is adjusted so as to match the color of the printed material 103 (step a40). At this time, a correspondence table between the ink key opening and the pattern density is used. When the ink key 101a is operated, the pattern density that changes in accordance with this operation is read from the correspondence table, and the color of the monitor display is changed. A color corresponding to the simulation operation is displayed on the monitor.
 この一方で、モニタ表示の色とインキキー開度との関係を呼び出して、これを用いて、ステップa40によりモニタ表示の色を印刷物に合わせ込んだ時のシミュレーションキー操作時のインキキー開度操作量ΔKを計算して(ステップa50)、現在のキー開度Kに上記ΔKを加算した開度(=K+ΔK)となるように、印刷機の実際のインキキー101aの開度にフィードバックする(ステップa60)。 On the other hand, the relationship between the color of the monitor display and the ink key opening is recalled, and using this, the ink key opening manipulated variable ΔK when operating the simulation key when the color of the monitor display is matched with the printed matter in step a40. Is calculated (step a50) and fed back to the actual opening of the ink key 101a of the printing press (step a60) so that the opening obtained by adding the above ΔK to the current key opening K (= K + ΔK).
 そして、このフィードバックしたインキキー101aの開度(=K+ΔK)で印刷を行なって(ステップa20)、上記ステップa20,a30の処理を実施し、色が合わなければ合うまでステップa40~a60及びa20,a30の処理を繰り返す。
特開2007-301855号公報
Then, printing is performed with the opening degree (= K + ΔK) of the ink key 101a fed back (step a20), and the processing of steps a20 and a30 is performed. If the colors do not match, steps a40 to a60 and a20 and a30 are performed. Repeat the process.
JP 2007-301855 A
 しかしながら、上述の特許文献1の技術では、印刷物の色を検出するセンサ(測色計)が不要になる利点はあるものの、以下のような不具合がある。
 オペレータは、目視により実際の印刷物103の色とモニタ102に表示された画像の色とを対比させて色の判断をするので、適正な判断を行なうことが困難である。つまり、印刷物103の色は反射色であるのに対して、モニタ102に表示される色は透過色であるため、これらの異質な色を対比するのは人間の視覚上難しい。また、反射色の場合は照射される照明等によって色合いが変わるが、透過色の場合、画面の直近での観察では基本的に色合いは変わらないが、モニタを見る位置や角度によって、両者の対比結果が変わってしまう。このため、モニタ画面と印刷物とのマッチングは困難であり、適正な判断を行なうことが困難なのである。
However, although the technique disclosed in Patent Document 1 has an advantage that a sensor (colorimeter) for detecting the color of a printed material is not required, there are the following problems.
The operator visually determines the color by comparing the actual color of the printed matter 103 with the color of the image displayed on the monitor 102, so that it is difficult to make an appropriate determination. That is, while the color of the printed material 103 is a reflection color, the color displayed on the monitor 102 is a transmission color, so it is difficult for humans to compare these different colors. In the case of reflection color, the hue changes depending on the illumination that is irradiated, but in the case of transmission color, the hue basically does not change when viewed from the screen, but the contrast between the two depends on the position and angle at which the monitor is viewed. The result will change. For this reason, matching between the monitor screen and the printed material is difficult, and it is difficult to make an appropriate judgment.
 また、シミュレーションキー操作は、実際のインキキー開度と連動しているわけではなく、シミュレーションキー操作を実際のインキキー開度調整に反映させるには、モニタ表示の色とインキキー開度との関係を呼び出して、インキキー操作量ΔKを計算して、インキキーを駆動する必要があり、この点で、よりシンプルな構成も望まれる。
 また、色合わせのためのデータ(インキキー開度と絵柄濃度との対応表)は予め持っている規定のものであり、色のマッチング精度のために、データ更新までは考慮していない。
In addition, the simulation key operation is not linked to the actual ink key opening. To reflect the simulation key operation in the actual ink key opening adjustment, call the relationship between the monitor display color and the ink key opening. Therefore, it is necessary to calculate the ink key operation amount ΔK and drive the ink key. In this respect, a simpler configuration is also desired.
Also, the data for color matching (correspondence table between ink key opening and pattern density) is a pre-defined rule and does not take into account data updating for color matching accuracy.
 さらに、インキ供給量と印刷の色調との関係は、印刷機周辺の環境、湿し水量、印刷資材等でも変わるので、よりカラーマッチング精度を高めるには、かかる点をも考慮してカラーマッチングをできれば更によい。
 本発明はこのような課題に鑑み案出されたもので、より容易に且つ適正に印刷色のマッチング判断を行なうことができるようにした、印刷色調制御支援方法及び装置、並びに印刷色調管理方法及び装置を提供することを目的とする。
In addition, the relationship between the ink supply amount and the color tone of printing changes depending on the environment around the printing press, the amount of dampening water, printing materials, etc. Even better if possible.
The present invention has been devised in view of such problems, and a printing color tone control support method and apparatus, a printing color tone management method, and a printing color tone management method, which are capable of making a print color matching determination more easily and appropriately. An object is to provide an apparatus.
 上記目的を達成するために、本発明の印刷色調制御支援方法は、モニタの画面上に、印刷機で印刷する絵柄を印刷見本の色調で目標色絵柄として映し出す目標色絵柄表示ステップと、前記印刷機で印刷された印刷物をセンサで測色し、前記測色された測色値を前記センサ及び前記モニタの各デバイスプロファイルに作用させて、前記センサで測色された色調で検出色絵柄として前記モニタの前記目標色絵柄と同一発色特性の画面上に映し出す検出色絵柄表示ステップと、前記印刷機のインキ供給量の模擬変更量を、インキ供給量と色値との関係を含んだ前記印刷機及び前記モニタの各デバイスプロファイルに作用させて、前記検出色絵柄をインキ供給量の模擬変更に応じた色調に変更して模擬変更色絵柄として前記モニタの前記目標色絵柄と同一発色特性の画面上に映し出す模擬変更色絵柄表示ステップと、をそなえていることを特徴としている。 In order to achieve the above object, a printing color tone control support method according to the present invention includes a target color picture display step for projecting a picture to be printed by a printing machine on a monitor screen as a target color picture with a color tone of a printing sample, and the printing The printed matter printed by the machine is measured by a sensor, and the measured colorimetric value is applied to each device profile of the sensor and the monitor, and the detected color pattern is detected by the color tone measured by the sensor. The detected color picture display step projected on the screen having the same color development characteristics as the target color picture of the monitor, and the simulated change amount of the ink supply amount of the printing machine including the relationship between the ink supply amount and the color value And the target color picture of the monitor as a simulated changed color picture by changing the detected color picture to a color tone according to the simulated change of the ink supply amount. It is characterized in that includes a simulated modified color picture display step for projecting on the screen of the same color characteristics, the.
 前記目標色絵柄表示ステップでは、前記印刷する絵柄の絵柄データを前記印刷見本及び前記モニタの各デバイスプロファイルに作用させて、前記印刷見本の色調で映し出すことが好ましい。
 あるいは、前記目標色絵柄表示ステップでは、前記印刷見本を前記センサで測色した画像を前記モニタの画面上に映し出すことも好ましい。
In the target color pattern display step, it is preferable that the pattern data of the pattern to be printed is applied to each device profile of the print sample and the monitor and projected in the color tone of the print sample.
Alternatively, in the target color picture display step, an image obtained by measuring the color of the print sample with the sensor is preferably displayed on the screen of the monitor.
 前記模擬変更色絵柄表示ステップでは、前記模擬変更色絵柄を前記モニタの前記目標色絵柄及び前記検出色絵柄と同一発色特性の画面上に映し出すことが好ましい。
 前記模擬変更量の入力操作部材は、前記印刷機の実際のインキ供給量調整操作部材であって、前記模擬変更色絵柄表示ステップでは、前記インキ供給量調整操作部材の情報を受けて前記模擬変更色絵柄を前記モニタの画面上に映し出すことが好ましい。
In the simulated changed color pattern display step, it is preferable that the simulated changed color pattern is displayed on a screen having the same color development characteristics as the target color pattern and the detected color pattern of the monitor.
The simulated change amount input operation member is an actual ink supply amount adjustment operation member of the printing press, and the simulated change color picture display step receives the information of the ink supply amount adjustment operation member and performs the simulated change. It is preferable to project a color pattern on the screen of the monitor.
 前記インキ供給量に対応するパラメータは、インキキー開度,インキ元ローラ回転数,及び版胴回転に対するインキ呼出ローラの呼び出し回数、並びにデジタルインキポンプの吐出量の少なくともいずれかであることが好ましい。
 前記印刷機は、枚葉印刷機であることが好ましい。
 また、本発明の印刷色調管理方法は、前記の印刷色調制御支援方法を実施すると共に、前記模擬変更色絵柄表示ステップにおいて同一発色特性の画面上に映し出された前記目標色絵柄と前記模擬変更色絵柄とを比べながら前記模擬変更量を操作しインキ供給量を模擬変化させ、前記模擬変更色絵柄の色調を前記目標色絵柄の色調に色合せする色合せステップとをそなえていることを特徴としている。
The parameter corresponding to the ink supply amount is preferably at least one of an ink key opening, an ink original roller rotation number, a number of calls of an ink call roller with respect to a plate cylinder rotation, and a discharge amount of a digital ink pump.
The printing press is preferably a sheet-fed printing press.
Also, the printing color tone management method of the present invention implements the printing color tone control support method, and also displays the target color pattern and the simulated change color displayed on the screen having the same color development characteristics in the simulated change color pattern display step. A color matching step of manipulating the simulated change amount while comparing the pattern to change the ink supply amount and matching the color tone of the simulated change color pattern to the color tone of the target color pattern. Yes.
 前記印刷機による印刷開始前に、前記モニタの画面上に、前記印刷機で印刷する絵柄を印刷見本の色調で目標色絵柄として映し出すと共に、前記印刷する絵柄の絵柄データを前記印刷機及び前記モニタの各デバイスプロファイルに作用させて前記印刷機で印刷する絵柄を前記印刷機により印刷した場合の想定色絵柄として映し出す印刷開始前絵柄表示ステップと、前記印刷開始前絵柄表示ステップで映し出された前記目標色絵柄と前記想定色絵柄とを比べながら前記模擬変更量を操作しインキ供給量を模擬変化させ、前記想定色絵柄の色調を前記目標色絵柄の色調に色合せする事前色合せステップと、前記印刷開始前に、前記事前色合せステップにより操作された前記模擬変更量に合わせて実際のインキ供給量をプリセットするプリセットステップと、をさらにそなえていることが好ましい。 Before starting printing by the printing machine, a picture to be printed by the printing machine is displayed on the screen of the monitor as a target color picture with a color tone of a printing sample, and the picture data of the picture to be printed is displayed on the printing machine and the monitor. The target image displayed in the pre-printing pattern display step for displaying the pattern to be printed on the printing machine as an assumed color pattern when the printing machine prints the pattern to be applied to each of the device profiles, and the pre-printing pattern display step A pre-color matching step of manipulating the simulated change amount while comparing the color pattern and the assumed color pattern to change the ink supply by simulation, and matching the color tone of the assumed color pattern to the color tone of the target color pattern, A preset that presets the actual ink supply amount in accordance with the simulated change amount operated in the pre-color matching step before printing is started. Preferably further includes a step, a.
 前記模擬変更色絵柄表示ステップ及び前記色合せステップは、前記印刷機による印刷後に前記印刷機を停止させて行なうことが好ましい。
 前記模擬変更色絵柄表示ステップ及び前記色合せステップは、前記印刷機による印刷を続行しながら行なうことが好ましい。
 前記印刷機,前記センサ及び前記モニタの各デバイスプロファイル、又は、前記印刷機,前記センサ,前記モニタ及び前記印刷見本の各デバイスプロファイルは、予めデータベースに記憶され、前記色合せステップ及び/又は前記事前色合せステップで色合わせされたインキ供給量に基づいて前記データベースに記憶された対応するデバイスプロファイルを更新することが好ましい。
It is preferable that the simulation change color picture display step and the color matching step are performed after the printing machine is stopped after printing by the printing machine.
It is preferable that the simulated change color picture display step and the color matching step are performed while continuing printing by the printing machine.
The device profiles of the printer, the sensor, and the monitor, or the device profiles of the printer, the sensor, the monitor, and the print sample are stored in advance in a database, and the color matching step and / or the event. It is preferable to update the corresponding device profile stored in the database based on the ink supply amount color-matched in the previous color matching step.
 本発明の印刷色調制御支援装置は、モニタと、前記モニタの画面上に映し出す画像を制御する画像制御部とを備え、前記画像制御部は、印刷機で印刷する絵柄の印刷見本の色調である目標色絵柄と、前記印刷機で印刷された印刷物をセンサで測色した測色値を前記センサ及び前記モニタの各デバイスプロファイルに作用させた色調である検出色絵柄と、前記印刷機のインキ供給量の模擬変更量を、インキ供給量と色値との関係を含んだ前記印刷機及び前記モニタの各デバイスプロファイルに作用させて、前記検出色絵柄をインキ供給量の模擬変更に応じた色調に変更したい模擬変更色絵柄とを、前記モニタの一画面上に映し出すように制御することを特徴としている。 The printing color tone control support device of the present invention includes a monitor and an image control unit that controls an image displayed on the screen of the monitor, and the image control unit is a color tone of a print sample of a picture to be printed by a printing press. A target color pattern, a detected color pattern that is a color tone obtained by applying a color measurement value obtained by measuring a color of a printed matter printed by the printing press to the device profile of the sensor and the monitor, and ink supply of the printing press The simulated change amount of the amount is applied to each device profile of the printing machine and the monitor including the relationship between the ink supply amount and the color value, and the detected color pattern is changed to a color tone according to the simulated change of the ink supply amount. Control is performed so that a simulated change color pattern to be changed is displayed on one screen of the monitor.
 前記画像制御部は、前記印刷する絵柄の絵柄データを前記印刷見本及び前記モニタの各デバイスプロファイルに作用させて、前記印刷見本の色調で前記モニタの画面上に映し出すことが好ましい。
 前記画像制御部は、前記模擬変更色絵柄を前記モニタの前記目標色絵柄及び前記検出色絵柄と同一発色特性の画面上に映し出すことが好ましい。
The image control unit preferably causes the pattern data of the pattern to be printed to act on each device profile of the print sample and the monitor, and displays the image data on the screen of the monitor in the color tone of the print sample.
The image control unit preferably projects the simulated changed color pattern on a screen having the same color development characteristics as the target color pattern and the detected color pattern of the monitor.
 前記模擬変更量の入力操作部材は、前記印刷機の実際のインキ供給量調整操作部材であって、前記画像制御部は、前記インキ供給量調整操作部材の情報を受けて前記模擬変更色絵柄を前記モニタの画面上に映し出すことが好ましい。
 前記インキ供給量に対応するパラメータは、インキキー開度,インキ元ローラ回転数,及び版胴回転に対するインキ呼出ローラの呼び出し回数、並びにデジタルインキポンプの吐出量の少なくともいずれかであることが好ましい。
The simulated change amount input operation member is an actual ink supply amount adjustment operation member of the printing press, and the image control unit receives the information of the ink supply amount adjustment operation member and displays the simulated change color pattern. It is preferable to project on the screen of the monitor.
The parameter corresponding to the ink supply amount is preferably at least one of an ink key opening, an ink original roller rotation number, a number of calls of an ink call roller with respect to a plate cylinder rotation, and a discharge amount of a digital ink pump.
 前記印刷機は、枚葉印刷機であることが好ましい。
 本発明の印刷色調管理装置は、前記の印刷色調制御支援装置と、前記の同一発色特性の画面上に映し出された前記目標色絵柄と前記模擬変更色絵柄とを比べながら前記模擬変更量を操作しインキ供給量を模擬変化させ、前記模擬変更色絵柄の色調を前記目標色絵柄の色調に自動で色合せする色合せ部とをそなえていることを特徴としている。
The printing press is preferably a sheet-fed printing press.
The printing color tone management apparatus of the present invention operates the simulated change amount while comparing the target color picture displayed on the screen having the same color development characteristics and the simulated change color picture with the print color tone control support apparatus. The ink supply amount is simulated, and a color matching unit that automatically matches the color tone of the simulated changed color pattern to the color tone of the target color pattern is provided.
 前記画像制御部は、前記印刷機による印刷開始前に、前記モニタの画面上に、前記印刷機で印刷する絵柄を印刷見本の色調で目標色絵柄として映し出すと共に、前記印刷する絵柄の絵柄データを前記印刷機及び前記モニタの各デバイスプロファイルに作用させて前記印刷機で印刷する絵柄を前記印刷機により印刷した場合の想定色絵柄として映し出すように構成され、前記色合せ部は、前記モニタに映し出された前記目標色絵柄と前記想定色絵柄とを比べながら前記模擬変更量を操作しインキ供給量を模擬変化させ、前記想定色絵柄の色調を前記目標色絵柄の色調に自動で色合せするように構成され、前記印刷開始前に、前記色合せ部により操作された前記模擬変更量に合わせて実際のインキ供給量をプリセットするプリセット部をそなえていることが好ましい。 Before starting printing by the printing machine, the image control unit projects a picture to be printed by the printing machine on a screen of the monitor as a target color picture in a color tone of a printing sample, and displays the pattern data of the picture to be printed. The printing machine and the monitor are configured to project the pattern to be printed by the printing machine by acting on the device profiles of the printing machine and the monitor, and the color matching unit is projected to the monitor. The simulated change amount is manipulated while comparing the target color pattern and the assumed color pattern, and the ink supply amount is simulated and the color tone of the assumed color pattern is automatically matched to the color tone of the target color pattern. And a preset unit that presets an actual ink supply amount according to the simulated change amount operated by the color matching unit before the start of printing. It is preferable to have.
 前記色合せ部は、前記模擬変更色絵柄の色調を前記目標色絵柄の色調に自動で色合せする処理を前記印刷機による印刷後に前記印刷機を停止させて行なうことが好ましい。
 前記色合せ部は、前記模擬変更色絵柄の色調を前記目標色絵柄の色調に自動で色合せする処理を前記印刷機による印刷を続行しながら行なうことも好ましい。
It is preferable that the color matching unit performs a process of automatically matching the color tone of the simulated change color pattern to the color tone of the target color pattern by stopping the printing machine after printing by the printing machine.
It is also preferable that the color matching unit performs a process of automatically matching the color tone of the simulated changed color picture to the color tone of the target color picture while continuing printing by the printing press.
 前記印刷機,前記センサ及び前記モニタの各デバイスプロファイル、又は、前記印刷機,前記センサ,前記モニタ及び前記印刷見本の各デバイスプロファイルは、予めデータベースに記憶され、前記色合せ部で色合わせされたインキ供給量に基づいて前記データベースに記憶された対応するデバイスプロファイルを更新するデバイスプロファイル更新部をそなえていることが好ましい。 The device profiles of the printing machine, the sensor, and the monitor, or the device profiles of the printing machine, the sensor, the monitor, and the print sample are stored in advance in a database and color-matched by the color matching unit. It is preferable to provide a device profile update unit for updating the corresponding device profile stored in the database based on the ink supply amount.
 本発明の印刷色調制御支援方法及び装置によれば、印刷機のインキ供給量の模擬変更量を、インキ供給量と色値との関係を含んだ印刷機及びモニタの各デバイスプロファイルに作用させることで、検出色絵柄をインキ供給量の模擬変更に応じた色調に変更した模擬変更色絵柄を得て、この模擬変更色絵柄をモニタの目標色絵柄と同一発色特性の画面上に映し出す。このように、模擬変更色絵柄と目標色絵柄とを同一発色特性の画面上に映し出すことによって、両絵柄が環境光の外乱の影響を全く受けなくなり、モニタを見る位置や角度の影響による色味の違いも極力小さくなる。 According to the printing color tone control support method and apparatus of the present invention, the simulated change amount of the ink supply amount of the printing press is applied to each device profile of the printer and the monitor including the relationship between the ink supply amount and the color value. Thus, a simulated changed color pattern obtained by changing the detected color pattern to a color corresponding to the simulated change of the ink supply amount is obtained, and this simulated changed color pattern is displayed on the screen having the same color development characteristics as the target color pattern of the monitor. In this way, by displaying the simulated change color pattern and the target color pattern on the screen with the same color development characteristics, both patterns are completely unaffected by ambient light disturbance, and the color depending on the position and angle of viewing the monitor. The difference is as small as possible.
 したがって、オペレータの視覚によって同一発色特性の画面上に映し出された模擬変更色絵柄と目標色絵柄とを比べながら、模擬変更色絵柄を目標色絵柄に近付けるように、適切に模擬変更を行なうことができる。また、模擬変更色絵柄を目標色絵柄に近付けるように、自動で色合せする際にも、オペレータは同一発色特性の画面上に映し出された模擬変更色絵柄と目標色絵柄とを目視しながら、印刷の色調を把握することができる。 Therefore, it is possible to appropriately make a simulated change so that the simulated change color pattern is brought closer to the target color pattern while comparing the simulated change color pattern projected on the screen with the same color development characteristics by the operator's vision and the target color pattern. it can. Also, when automatically matching colors so as to bring the simulated change color pattern closer to the target color pattern, the operator visually observes the simulated change color pattern and the target color pattern projected on the screen with the same coloring characteristics, The color tone of printing can be grasped.
 特に、模擬変更色絵柄は、印刷機で印刷された印刷物をセンサにより測色して得られる検出色絵柄に基づいて生成されるので、模擬変更色絵柄をモニタの画面に高精度に映し出すことができ、この点からも適切に模擬変更を行なうことができる。
 また、印刷機で印刷する絵柄を印刷見本の色調で目標色絵柄として映し出す場合、印刷する絵柄の絵柄データを印刷見本及びモニタの各デバイスプロファイルに作用させることで、前記印刷見本の色調によって確実に映し出すことができる。
In particular, since the simulated change color pattern is generated based on the detected color pattern obtained by measuring the color of the printed matter printed by the printing press with a sensor, the simulated change color pattern can be accurately projected on the monitor screen. From this point, it is possible to appropriately make a simulated change.
In addition, when a picture to be printed on a printing press is projected as a target color picture in the color tone of the print sample, the pattern data of the picture to be printed is applied to each device profile of the print sample and the monitor, thereby ensuring the color tone of the print sample. Can be projected.
 あるいは、印刷見本をセンサで測色した画像をモニタの画面上に映し出すようにすれば、容易にしかも確実に印刷機で印刷する絵柄を印刷見本の色調で目標色絵柄として映し出すことができる。
 模擬変更色絵柄を目標色絵柄及び検出色絵柄と共にモニタの同一発色特性の画面上に映し出すことにより、検出色絵柄とこれを模擬変更した模擬変更色絵柄とを対比して視認することができ、画面を参照しながら模擬変更操作を適正に行なうことができる。
Alternatively, if an image obtained by measuring the color of the print sample with the sensor is displayed on the screen of the monitor, the pattern printed by the printing machine can be easily and reliably displayed as the target color pattern in the color tone of the print sample.
By projecting the simulated change color pattern together with the target color pattern and the detected color pattern on the screen of the same color development characteristic of the monitor, it is possible to visually compare the detected color pattern and the simulated change color pattern obtained by simulating and changing it. The simulation change operation can be appropriately performed while referring to the screen.
 模擬変更量の入力操作部材を、印刷機の実際のインキ供給量調整操作部材とすれば、印刷機の実際のインキ供給量調整操作を行なうようにすることにより、実際に印刷を行なわないでも、オペレータは実際のインキ供給量調整操作により違和感なくインキ供給量を適正にしかも容易に調整することができる。
 色調を管理する場合、印刷開始前に、印刷する絵柄の絵柄データを印刷機及びモニタの各デバイスプロファイルに作用させて印刷機で印刷する絵柄を印刷機により印刷した場合の想定色絵柄として目標色絵柄と共に映し出し、想定色絵柄の色調を目標色絵柄の色調に色合せする事前色合せをして、事前色合せにより操作された模擬変更量に合わせて実際のインキ供給量をプリセットすることで、実際の印刷に当たって印刷開始当初から印刷した絵柄の色調を目標の色調(目標色絵柄)に近づけることができ、より速やかに、適正な印刷を実施することができ、印刷時間の短縮や損紙削減に寄与する。
If the input operation member of the simulated change amount is the actual ink supply amount adjustment operation member of the printing press, by performing the actual ink supply amount adjustment operation of the printing press, even if the actual printing is not performed, The operator can adjust the ink supply amount appropriately and easily without a sense of incongruity by the actual ink supply amount adjustment operation.
When managing color tone, before starting printing, the target color is assumed as the assumed color pattern when the pattern data to be printed is applied to each device profile of the printer and monitor and the pattern to be printed by the printer is printed. By projecting together with the pattern, pre-color matching that matches the color tone of the assumed color pattern to the color tone of the target color pattern, and presetting the actual ink supply amount according to the simulated change amount operated by pre-color matching, In actual printing, the color tone of the picture printed from the beginning of printing can be brought close to the target color tone (target color picture), and more appropriate printing can be carried out more quickly, reducing printing time and reducing waste paper. Contribute to.
 かかる模擬変更色絵柄表示及び色合せを、印刷機による印刷開始後に印刷機を停止させて行なえば、損紙の削減を一層促進することができる。
 印刷機が枚葉印刷機である場合、通常、一定部数刷っては、印刷機を停止して印刷状態の確認(見当及び色調確認を含む)を行なっているので、このような印刷形態に適用すれば、印刷状態の確認を効率よく行なえることになり、印刷機を停止する回数を削減させ、印刷時間の短縮や損紙削減を促進できる。
If the simulated change color picture display and color matching are performed after the printing machine has started printing, the printing machine can be stopped to further promote the reduction of waste paper.
When the printing machine is a sheet-fed printing machine, usually, after printing a certain number of copies, the printing machine is stopped and the printing status is checked (including registration and color tone checking). If this is done, the printing state can be checked efficiently, the number of times the printing machine is stopped can be reduced, and the printing time and paper loss can be reduced.
 また、かかる模擬変更色絵柄表示及び色合せを印刷機による印刷を続行しながら行なう場合、印刷中に得られる検出色絵柄に基づいてこれを目標色絵柄に近づけるように模擬変更により色合せを行なうことになる。検出色絵柄は所定の周期で更新していくことができ、この略リアルタイムで得られる検出色絵柄を見ながら、これが目標色絵柄に近づくように実際のインキ供給量を操作することも考えられる。しかし、実際のインキ供給量は変更操作をしてから一定の応答遅れをもって変化するため、この応答遅れを無視してリアルタイムの検出色絵柄を目標色絵柄に近づけようとすると、変更操作を過剰に行なうことになり易く、結果として、インキ供給量が適正になるのに時間を要してしまうおそれがある。この点、模擬変更による色合せは、得られた検出色絵柄に対して最適な変更操作をすることになり、この模擬変更操作の間の印刷が損紙になったとしても、模擬変更結果に基づいて実際のインキ供給量を調整操作すれば、一定の応答時間を持って印刷物の色調を適正なものにすることができ、結果として、損紙発生量や印刷時間の増大を抑えることが期待できる。 In addition, when such a simulated change color pattern display and color matching is performed while continuing printing by a printing machine, color matching is performed by simulated change so as to approach the target color pattern based on the detected color pattern obtained during printing. It will be. The detected color pattern can be updated at a predetermined cycle, and it is conceivable to operate the actual ink supply amount so as to approach the target color pattern while viewing the detected color pattern obtained in substantially real time. However, since the actual ink supply amount changes with a certain response delay after the change operation, if the response delay is ignored and an attempt is made to bring the real-time detected color pattern closer to the target color pattern, the change operation will be excessive. As a result, it may take time for the ink supply amount to be appropriate. In this regard, color matching by simulated change will result in an optimal change operation for the obtained detected color pattern, and even if printing during this simulated change operation becomes waste paper, If the actual ink supply amount is adjusted based on this, the color tone of the printed matter can be made appropriate with a certain response time, and as a result, it is expected to suppress the increase in the amount of waste paper and the printing time. it can.
 また、印刷機,センサ及びモニタや印刷見本の各デバイスプロファイルを予めデータベースに記憶させ、色合せされたインキ供給量に基づいてデータベースに記憶された対応するデバイスプロファイルを更新するので、より適正な対応関係を作成でき、色調制御をより適正に行なうことができる。 In addition, device profiles for printing presses, sensors, monitors, and print samples are stored in advance in the database, and the corresponding device profiles stored in the database are updated based on the color-matched ink supply amounts. Relationships can be created and color tone control can be performed more appropriately.
図1は本発明の第1実施形態にかかる印刷色調制御支援装置及び印刷色調管理装置の主要機能を説明する説明図である。FIG. 1 is an explanatory diagram for explaining main functions of a printing color tone control support device and a printing color tone management device according to the first embodiment of the present invention. 図2は本発明の第1実施形態にかかる印刷色調制御支援装置及び印刷色調管理装置の一機能を説明する説明図である。FIG. 2 is an explanatory diagram illustrating one function of the print color tone control support apparatus and the print color management apparatus according to the first embodiment of the present invention. 図3は本発明の第1実施形態にかかる印刷色調制御支援装置及び印刷色調管理装置の構成図である。FIG. 3 is a configuration diagram of the print color tone control support device and the print color tone management device according to the first embodiment of the present invention. 図4は本発明の第1実施形態にかかる印刷色調制御支援方法及び印刷色調管理方法を説明するフローチャートである。FIG. 4 is a flowchart for explaining the print color tone control support method and print color tone management method according to the first embodiment of the present invention. 図5は本発明の第1実施形態にかかる印刷色調制御支援方法及び印刷色調管理方法を説明するフローチャートである。FIG. 5 is a flowchart for explaining the print color tone control support method and print color tone management method according to the first embodiment of the present invention. 図6(a),図6(b)は何れも本発明の第1実施形態にかかるデータベースを説明する図であって、図6(a)はその第1例を示し、図6(b)はその第2例を示す。6 (a) and 6 (b) are diagrams for explaining the database according to the first embodiment of the present invention. FIG. 6 (a) shows the first example, and FIG. 6 (b). Shows a second example. 図7は本発明の第1実施形態にかかるデータベースの更新を説明する図である。FIG. 7 is a view for explaining updating of the database according to the first embodiment of the present invention. 図8は本発明の第1実施形態にかかるデータベースの更新を説明する図である。FIG. 8 is a diagram for explaining updating of the database according to the first embodiment of the present invention. 図9は本発明の第1実施形態にかかるデータベースの更新を説明する図である。FIG. 9 is a view for explaining updating of the database according to the first embodiment of the present invention. 図10は本発明の第1実施形態にかかるデータベースの更新を説明する図である。FIG. 10 is a diagram for explaining the update of the database according to the first embodiment of the present invention. 図11は本発明の第1実施形態にかかるデータベースの作成,更新を説明する図である。FIG. 11 is a diagram for explaining creation and update of a database according to the first embodiment of the present invention. 図12は本発明の第1実施形態にかかる印刷色調制御支援方法及び印刷色調管理方法を説明するタイムチャートである。FIG. 12 is a time chart for explaining the print color tone control support method and print color tone management method according to the first embodiment of the present invention. 図13は本発明の第2実施形態にかかる印刷色調制御支援方法及び印刷色調管理方法を説明する模式的なタイムチャートである。FIG. 13 is a schematic time chart for explaining a printing color tone control support method and a printing color tone management method according to the second embodiment of the present invention. 図14は本発明の第2実施形態にかかる印刷色調制御支援方法及び印刷色調管理方法の効果を説明する模式的なタイムチャートである。FIG. 14 is a schematic time chart for explaining the effects of the printing color tone control support method and the printing color tone management method according to the second embodiment of the present invention. 図15は本発明の第2実施形態の変形例にかかる印刷機の要部構成を示す模式的な側面図である。FIG. 15 is a schematic side view showing a main configuration of a printing press according to a modification of the second embodiment of the present invention. 図16は背景技術にかかる印刷色調制御支援装置の主要機能を説明する説明図である。FIG. 16 is an explanatory diagram for explaining the main functions of the print color tone control support apparatus according to the background art. 図17は背景技術にかかる印刷色調制御支援方法を説明するフローチャートである。FIG. 17 is a flowchart for explaining a printing color tone control support method according to the background art.
符号の説明Explanation of symbols
 1,1´ 印刷機
 1a インキキー
 1b インキ元ローラ
 1c インキ呼出ローラ
 2 版胴
 3 ブランケット胴
 11,11´ 絵柄色調管理装置本体(絵柄色調管理端末、又は、演算装置)
 11a インキ供給量演算部
 11c CMS変換部
 11b 画像情報生成部(画像制御部)
 11c CMS変換部
 11d データ更新部
 11e 色合わせ部
 12 モニタディスプレイ(画像表示装置、モニタ)
 12a モニタ12の画面
 14,14´ センサ(測色計、ここでは、スキャナ)
 15,15´ 印刷物
 16 印刷見本の色調で映し出す画像(目標色絵柄の画像)
 17 測色された色調で映し出す画像(検出色絵柄の画像)
 17´ 想定される色調で映し出す画像(想定色絵柄の画像)
 18,18´ インキ供給量の模擬変更に応じた色調に変更して映し出す画像(模擬変更色絵柄の画像)
 19a タッチパネル
 19b スイッチ
 20 製版システム
 30~33 データベース
DESCRIPTION OF SYMBOLS 1,1 'Printing machine 1a Ink key 1b Ink original roller 1c Ink call roller 2 Plate cylinder 3 Blanket cylinder 11, 11' Picture color tone management apparatus main body (Picture color tone management terminal or arithmetic unit)
11a Ink supply amount calculation unit 11c CMS conversion unit 11b Image information generation unit (image control unit)
11c CMS conversion unit 11d data update unit 11e color matching unit 12 monitor display (image display device, monitor)
12a Screen of monitor 12 14, 14 'sensor (colorimeter, here scanner)
15,15 'Printed matter 16 Image projected in the color tone of the printed sample (image of the target color picture)
17 Image projected with colorimetric color (detected color pattern image)
17 'Image projected in assumed color (image of assumed color pattern)
18, 18 'An image that is displayed with a color tone changed according to a simulated change in the ink supply amount (image of a simulated change color pattern)
19a Touch Panel 19b Switch 20 Plate Making System 30-33 Database
 以下、図面により、本発明の実施の形態について説明する。
[第1実施形態]
 図1~図12は本発明の第1実施形態に係る印刷色調制御支援装置及び方法を示すもので、これらの図に基づいて説明する。
(装置構成)
 まず、本実施形態にかかる印刷色調制御支援装置を説明する。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
FIGS. 1 to 12 show a printing color tone control support apparatus and method according to the first embodiment of the present invention, which will be described with reference to these drawings.
(Device configuration)
First, a print color tone control support apparatus according to the present embodiment will be described.
 本印刷色調制御支援装置は、オフセット輪転印刷機や枚葉印刷機をはじめとした、刷版を用いて印刷を行う種々の印刷機に適用できるが、本実施形態では枚葉印刷機に適用する場合を説明する。
 本印刷色調制御支援装置は、図1,図3に示すように、絵柄色調管理装置の主要素である絵柄色調管理装置本体(絵柄色調管理端末、又は、演算装置)11と、この装置本体11からの情報に基づいて画像を表示するモニタディスプレイ(画像表示装置、以下、単に、モニタともいう)12と、印刷物15の色を測定するセンサ(測色計、ここでは、スキャナ)14と、データベース31~33とを備えている。
The printing color tone control support apparatus can be applied to various printing machines that perform printing using a printing plate, such as an offset rotary printing machine and a sheet-fed printing machine. In the present embodiment, the printing color tone control support apparatus is applied to a sheet-fed printing machine. Explain the case.
As shown in FIGS. 1 and 3, the printing color tone control support device includes a design color tone management device main body (a design color tone management terminal or a calculation device) 11 which is a main element of the design color tone management device, and the device main body 11. A monitor display (image display device, hereinafter simply referred to as a monitor) 12 for displaying an image based on information from the sensor, a sensor (colorimeter, here, a scanner) 14 for measuring the color of the printed matter 15, and a database 31-33.
 なお、本実施形態では、図2に示すように、モニタ12の画面12aには、タッチパネル19aが付設され、画面12aには、第1~3の各画像毎にインキ供給ゾーンが表示され、何れかのインキ供給ゾーンをタッチして選択すると、タッチパネル19aの上に、スイッチ19bが表示され、表示された各色[CYAN(藍),BLUE(青),MAGENTA(紅),RED(赤),YELLOW(黄),GREEN(緑)]の変更ボタンを操作することで、そのインキ供給ゾーンのインキ量を増減指令できるようになっている。 In the present embodiment, as shown in FIG. 2, a touch panel 19a is attached to the screen 12a of the monitor 12, and an ink supply zone is displayed for each of the first to third images on the screen 12a. When the ink supply zone is selected by touching, the switch 19b is displayed on the touch panel 19a, and the displayed colors [CYAN (blue), BLUE (blue), MAGENTA (red), RED (red), YELLOW) are displayed. By operating the (yellow), GREEN (green)] change button, the ink amount in the ink supply zone can be commanded to increase or decrease.
 したがって、本実施形態では、タッチパネル19aのスイッチ19bを通じて、インキ供給状態の調整操作(実際にはインキキー開度の変更操作)の情報が装置本体11に入力されるが、一般的な印刷操作盤に装備されるシートパネルのインキキー開度操作を通じてインキ供給状態の調整操作を行なうようにしてもよい。
 装置本体11は、インキ供給量演算部11aと、CMS変換部11cを有する画像情報生成部(画像制御部)11bとをそなえている。なお、画像情報生成部11bでは、モニタ12の画面に表示する画像を生成しこの生成した画像情報をモニタ12に出力しモニタ12に画像表示させる。この際、モニタ12に表示すべき絵柄データがインキ色系の情報(k,c,m,y)の場合には、CMS変換部11cで、モニタ系の発色情報にCMS変換する。
Therefore, in the present embodiment, information on the ink supply state adjustment operation (actually the ink key opening change operation) is input to the apparatus main body 11 through the switch 19b of the touch panel 19a. You may make it perform adjustment operation of an ink supply state through the ink key opening operation of the sheet | seat panel equipped.
The apparatus main body 11 includes an ink supply amount calculation unit 11a and an image information generation unit (image control unit) 11b having a CMS conversion unit 11c. Note that the image information generation unit 11b generates an image to be displayed on the screen of the monitor 12, outputs the generated image information to the monitor 12, and causes the monitor 12 to display the image. At this time, if the pattern data to be displayed on the monitor 12 is ink color information (k, c, m, y), the CMS converter 11c performs CMS conversion to monitor color information.
 装置本体11には、製版システム20から、絵柄(製版)データのうちの、各インキ色[k(ブラック;墨),c(シアン;藍),m(マゼンタ;紅),y(イエロー;黄)]の分版絵柄データ(製版データ、画像データ等)として、各インキ色の印刷絵柄の各部の絵柄情報(階調情報、網点面積率情報)c,m,y,kを取得し、印刷開始時には、予め設定されている絵柄データ(階調、網点面積率)とインキ供給量との対応関係に基づいて、事前に、印刷機1のインキ供給状態をプリセット指令する(この機能要素をプリセット部とする)。 The apparatus main body 11 receives each ink color [k (black; black), c (cyan; indigo), m (magenta; red), y (yellow; yellow) from the pattern (plate making) data from the plate making system 20. )], The pattern information (gradation information, dot area ratio information) c, m, y, k of each part of the printing pattern of each ink color is obtained as the separation pattern data (plate making data, image data, etc.), At the start of printing, a preset command is given in advance for the ink supply state of the printing machine 1 based on the correspondence relationship between preset pattern data (gradation, halftone dot area ratio) and ink supply amount (this functional element). Is a preset part).
 なお、印刷機1には、インキ供給状態を調整する調整要素として、インキキー開度,インキ元ローラ回転数,デジタルインキポンプの吐出量,及び版胴回転数に対するインキ呼出ローラの呼び出し回数が設けられているが、ここでは、インキキー開度を調整するものとする。もちろん、インキ供給状態の調整には、インキキー1aの開度,インキ元ローラ1bの回転数,及び版胴回転数に対するインキ呼出ローラ1cの呼び出し回数といった各調整要素の何れか、或いは、これらを組み合わせて用いればよいが、インキキーは印刷幅方向に多数設けられており、インキキー単位幅(インキ供給ゾーン)毎にインキ供給状態を調整できることから、本実施形態ではインキキー開度を用いている。 The printing press 1 is provided with adjustment factors for adjusting the ink supply state, such as the ink key opening, the ink source roller rotation speed, the discharge amount of the digital ink pump, and the number of calls of the ink call roller with respect to the plate cylinder rotation speed. However, the ink key opening is adjusted here. Of course, the ink supply state is adjusted by adjusting any one of the adjustment factors such as the opening degree of the ink key 1a, the rotation speed of the ink original roller 1b, and the number of calls of the ink call roller 1c with respect to the rotation speed of the plate cylinder, or a combination thereof. In this embodiment, the ink key opening is used because a large number of ink keys are provided in the print width direction and the ink supply state can be adjusted for each ink key unit width (ink supply zone).
 また、装置本体11には、上記絵柄画像データのほか、センサ14からの印刷物15の測色情報(計測結果データ)が取り込まれる。なお、センサ14は、印刷物15の色(発色状態を示す値である発色値)を検出できるものであればよい。この発色値には、L,a,b(単に、Labとも記載する)等の色座標値や分光反射スペクトル値R(λ)やI(赤外光),R(Red光),G(Green光),B(Blue光)の各反射濃度等を用いることができるが、ここでは、センサ14は発色値としてR,G,Bを検出する濃度センサであるものとして説明する。分光スペクトル値R(λ)を発色値とするなら分光反射率計をセンサ14に適用すればよく、色座標値を発色値とするなら分光反射率計や色彩色差計等をセンサ14に適用すればよい。 In addition to the pattern image data, the apparatus main body 11 receives colorimetric information (measurement result data) of the printed matter 15 from the sensor 14. The sensor 14 may be any sensor as long as it can detect the color of the printed matter 15 (a color value that is a value indicating the color development state). The color values include color coordinate values such as L * , a * , b * (also simply referred to as Lab), spectral reflection spectrum values R (λ), I (infrared light), R (red light), Each reflection density of G (Green light) and B (Blue light) can be used. Here, the sensor 14 will be described as a density sensor that detects R, G, and B as coloring values. If the spectral spectral value R (λ) is a color value, a spectral reflectometer may be applied to the sensor 14, and if the color coordinate value is a color value, a spectral reflectometer, a color difference meter, or the like is applied to the sensor 14. That's fine.
 また、装置本体11の画像制御部11bでは、モニタ12の画面上に、印刷機で印刷する絵柄を、印刷見本(校正刷り、或いは、ゲラともいう)の色調で映し出す画像(目標色絵柄の画像)16と、印刷機で印刷された印刷物15をセンサ14で測色し、測色された測色値をセンサ14及びモニタ12の各デバイスプロファイルに作用させて、センサ14で測色された色調で映し出す画像(検出色絵柄の画像)17と、印刷機のインキ供給量の模擬変更量を、インキ供給量と色値との関係を含んだ印刷機及びモニタの各デバイスプロファイルに作用させて、検出色絵柄をこのインキ供給量の模擬変更に応じた色調に変更して映し出す画像(模擬変更色絵柄の画像)18´と、を全て同一画面上に、或いは、各2つの組み合わせで、或いは、単独で表示する。 In addition, the image control unit 11b of the apparatus main body 11 displays an image (an image of a target color pattern) on a screen of the monitor 12 in which a pattern printed by a printing machine is displayed in a color tone of a print sample (also referred to as a proof print or a galley). ) 16 and the color of the printed matter 15 printed by the printing machine are measured by the sensor 14, and the measured colorimetric values are applied to the device profiles of the sensor 14 and the monitor 12. The image (image of the detected color pattern) 17 projected on the screen and the simulated change amount of the ink supply amount of the printing press are applied to each device profile of the printer and the monitor including the relationship between the ink supply amount and the color value. An image (simulated change color pattern image) 18 ′ displayed by changing the detected color pattern to a color tone corresponding to the simulated change of the ink supply amount, all on the same screen, or a combination of the two, or To display in Germany.
 なお、目標色絵柄(つまり、印刷見本の色調で映し出す印刷絵柄)の画像16は、印刷絵柄の絵柄データを印刷見本(印刷見本を印刷した印刷機)及びモニタ12の各デバイスプロファイルに作用させて、印刷見本の色調で映し出すようにしてもよく、センサ(スキャナ)14で印刷見本を直接スキャンした画像を映し出すようにしてもよい。
 印刷開始前には、画像制御部11bは、予め既存のプリセット値にインキ供給量、即ち、各インキキー1aの開度をプリセットするが、本実施形態では、このプリセット値についても、事前(印刷開始前)に調整するようにしてなっている。つまり、画像制御部11bは、印刷機1による印刷開始前に、モニタ12の画面12a上に、印刷機1で印刷する絵柄を印刷見本の色調で映し出す画像(目標色絵柄の画像)16と、印刷する絵柄の絵柄データを印刷機1及びモニタ12の各デバイスプロファイルに作用させて、印刷機1で印刷する絵柄を既存のプリセット値(以前更新されたプリセット値、或いは、デフォルト値)として印刷機1により印刷した場合の色調で映し出す画像(想定色絵柄の画像)17´とを、同時に並べて映し出すように画像を生成する。
Note that the image 16 of the target color pattern (that is, the print pattern projected in the color tone of the print sample) is obtained by applying the pattern data of the print pattern to the print sample (printer that printed the print sample) and each device profile of the monitor 12. Alternatively, it may be displayed in the color tone of the print sample, or an image obtained by directly scanning the print sample with the sensor (scanner) 14 may be displayed.
Before the start of printing, the image control unit 11b presets the ink supply amount, that is, the opening degree of each ink key 1a in advance to an existing preset value. In this embodiment, the preset value is also set in advance (print start). Adjustment is made to the previous). That is, the image control unit 11b displays an image (an image of a target color pattern) 16 that displays a pattern to be printed by the printing machine 1 in the color tone of the printing sample on the screen 12a of the monitor 12 before starting printing by the printing machine 1. The image data of the pattern to be printed is applied to each device profile of the printing machine 1 and the monitor 12, and the printing machine 1 uses the pattern to be printed as an existing preset value (previously updated preset value or default value). The image is generated so that the image (image of the assumed color pattern) 17 ′ displayed in the color tone when printed according to 1 is displayed side by side at the same time.
 そして、モニタ12の同一画面に映し出された目標色絵柄の画像(モニタプルーフ画像)16と、想定色絵柄の画像17´とを比較して、目標色絵柄に対して検出色絵柄が許容限度以上大きな色調の差があれば、プリセット値を模擬変更する。この際、オペレータは、画面をプリセット値変更モードにして、プリセット値の模擬変更、つまり、インキ供給状態の調整操作(例えば、インキキー開度の変更操作)を行なうことができる。 Then, the image of the target color pattern (monitor proof image) 16 projected on the same screen of the monitor 12 is compared with the image 17 'of the assumed color pattern, and the detected color pattern exceeds the allowable limit with respect to the target color pattern. If there is a large difference in color tone, the preset value is simulated. At this time, the operator can set the screen to the preset value change mode and perform a simulated change of the preset value, that is, an ink supply state adjustment operation (for example, an ink key opening change operation).
 このプリセット値変更モードでは、図1に示すように、目標色絵柄の画像16と模擬変更色絵柄の画像18´と想定色絵柄の画像17´との3つを並べて表示し、模擬変更色絵柄の画像18´は、表示当初は想定色絵柄の画像17´と同一のものを表示し、その後、プリセット値の模擬変更に応じて、プリセット値を変更した場合に生じる色の変化を模擬変更色絵柄の画像18´に加えていく。 In this preset value change mode, as shown in FIG. 1, three images, a target color picture image 16, a simulated change color picture image 18 ', and an assumed color picture image 17' are displayed side by side. The image 18 ′ is initially displayed in the same manner as the image 17 ′ of the assumed color pattern, and then the color change that occurs when the preset value is changed according to the simulation change of the preset value is simulated change color This is added to the pattern image 18 '.
 この際、印刷機1のインキキー開度の変更(即ち、インキキー供給量の変更に応じた印刷面上のインキの膜厚変更)に応じた色の変化を推定することが必要になるが、印刷機1のインキキー開度と色との関係は印刷機1のデバイスプロファイルとして用意されているので、これを用いて、プリセット値変更(インキキー開度の模擬変更)に応じて、模擬変更色絵柄の画像18´の色を変化させる。
 なお、ここでは、モニタ12の同一画面に、目標色絵柄の画像16,想定色絵柄の画像17´,模擬変更色絵柄の画像18´、想定色絵柄の画像17´をこの順で並べており、目標色絵柄の画像16と、模擬変更色絵柄の画像18´とを隣接させて、視認による対比を容易にさせているが、表示画像の並び方はこれに限るものではなく、画面の一端側から、目標色絵柄の画像16、想定色絵柄の画像17´、模擬変更色絵柄の画像18´の順で表示してもよく、画面中央に、目標色絵柄の画像16を配置し、その両側に想定色絵柄の画像17及び模擬変更色絵柄の画像18´を配置してもよい。
At this time, it is necessary to estimate the change in color according to the change in the ink key opening of the printing machine 1 (that is, the change in the ink film thickness on the printing surface in accordance with the change in the ink key supply amount). Since the relationship between the ink key opening of the machine 1 and the color is prepared as a device profile of the printing machine 1, it can be used to change the simulated change color pattern according to the preset value change (simulated change of the ink key opening). The color of the image 18 ′ is changed.
Here, the target color picture image 16, the assumed color picture image 17 ′, the simulated change color picture image 18 ′, and the assumed color picture image 17 ′ are arranged in this order on the same screen of the monitor 12. The target color pattern image 16 and the simulated change color pattern image 18 'are adjacent to facilitate visual comparison. However, the arrangement of the display images is not limited to this, but from one end of the screen. The target color picture image 16, the assumed color picture image 17 ′, and the simulated change color picture image 18 ′ may be displayed in this order, and the target color picture image 16 is arranged in the center of the screen, and on both sides thereof. An image 17 of the assumed color pattern and an image 18 ′ of the simulated change color pattern may be arranged.
 また、プリセット値の模擬変更は、実際のインキ供給量を変更する操作部材、つまり、タッチパネル19aのスイッチ19b、或いは、印刷操作盤に装備されるシートパネルのインキキー開度操作部材を通じて行なうようになっている。
 なお、インキ供給量(インキキー開度)のプリセット値は、印刷機のデバイスプロファイルに含まれる絵柄画線率とインキ供給量とを対応付けたプリセット関数(API関数)を用いて、絵柄画像データ(製版データ)から決めることができるが、このように、プリセット値変更を行なうのは、この印刷に関しては、現状のプリセット関数が最適ではないためと判断することができる。そこで、本実施形態では、このプリセット値の模擬変更によって得られたインキ供給量(インキキー開度)に基づいて、プリセット関数を更新してより適正なプリセット関数へと修正するようにしている。これについては後述する。
In addition, the simulated change of the preset value is performed through an operation member that changes the actual ink supply amount, that is, a switch 19b of the touch panel 19a or an ink key opening operation member of a sheet panel provided in the printing operation panel. ing.
Note that the preset value of the ink supply amount (ink key opening) is obtained by using a preset function (API function) that associates the pattern line drawing rate and the ink supply amount included in the device profile of the printing press with the image image data (API function). However, the reason why the preset value is changed in this way can be determined because the current preset function is not optimal for this printing. Therefore, in the present embodiment, the preset function is updated and corrected to a more appropriate preset function based on the ink supply amount (ink key opening) obtained by the simulation change of the preset value. This will be described later.
 ところで、この印刷前のインキ供給量のプリセット値変更の際、目標色絵柄の画像16、想定色絵柄の画像19、模擬変更色絵柄の画像18´の各画像はいずれも、等価な色として画像表示しなくては、適正に対比することができない。
 そこで、画像制御部11bでは、目標色絵柄の画像16は、前記絵柄画像データに、印刷物15の見本の色特性である印刷見本プロファイル(ターゲットプロファイル、印刷見本のプロファイル)とモニタ12の色特性である画像表示プロファイル(モニタプロファイル)とを作用させて生成する。また、想定色絵柄の画像19は、絵柄画像データに、印刷機1の印刷機プロファイル(キーゾーン毎のインキ供給量及び画線率によって選択される印刷デバイスプロファイル群)とモニタ12の色特性である画像表示プロファイル(モニタプロファイル)とを作用させて生成する。模擬変更色絵柄の画像18´は、想定色絵柄に、印刷機1の色特性である印刷機プロファイル(キーゾーン毎のインキ供給量及び画線率によって選択される印刷デバイスプロファイル群)とモニタ12の色特性である画像表示プロファイル(モニタプロファイル)とを作用させてインキ供給量の変更操作に応じて色調を変化させるように生成する。なお、各プロファイルは、データベース31~33(区別しない場合は30)から呼び出して用いる。
By the way, when the preset value of the ink supply amount before printing is changed, each of the target color picture image 16, the assumed color picture image 19, and the simulated changed color picture image 18 ′ is an equivalent color image. If it is not displayed, it cannot be properly compared.
Therefore, in the image control unit 11b, the image 16 of the target color pattern is added to the pattern image data by the print sample profile (target profile, print sample profile) which is the color characteristic of the sample of the printed matter 15 and the color characteristic of the monitor 12. It is generated by acting a certain image display profile (monitor profile). Also, the assumed color pattern image 19 includes, in the pattern image data, a printing machine profile of the printing machine 1 (a printing device profile group selected by an ink supply amount and a line drawing rate for each key zone) and a color characteristic of the monitor 12. It is generated by acting a certain image display profile (monitor profile). The simulated changed color pattern image 18 ′ includes an assumed color pattern, a printing machine profile (a printing device profile group selected based on an ink supply amount and a line drawing rate for each key zone), and a monitor 12. The image display profile (monitor profile), which is the color characteristic of the image, is generated so as to change the color tone according to the change operation of the ink supply amount. Each profile is used by calling from the databases 31 to 33 (or 30 if not distinguished).
 一方、実際に印刷を行なって印刷物15を得たら、印刷物15の色をセンサ14で測色し、その測色情報(計測結果データ)が画像制御部11bに取り込まれ、画像制御部11bでは、測色値に応じた色、即ち、実印刷物の色の画像である検出色絵柄の画像17を生成しモニタ12の画面12aに表示させる。この場合も、目標色絵柄の画像16と検出色絵柄の画像17とを、モニタ12の画面12aに同時に対比して表示させる。 On the other hand, when printing is actually performed to obtain the printed matter 15, the color of the printed matter 15 is measured by the sensor 14, and the color measurement information (measurement result data) is taken into the image control unit 11b. A color 17 corresponding to the colorimetric value, that is, an image 17 of a detected color pattern which is an image of the color of the actual printed matter is generated and displayed on the screen 12a of the monitor 12. Also in this case, the image 16 of the target color pattern and the image 17 of the detected color pattern are displayed on the screen 12a of the monitor 12 at the same time.
 さらに、発色を模擬変更する模擬変更モードが選択できるようになっており、検出色絵柄の画像17の表示に対し模擬変更モードが選択されたら、画像制御部11bは、このインキ供給量の模擬変更に応じて発色状態が変更される模擬変更色絵柄の画像18を追加表示する。なお、オペレータにより、インキ供給状態の模擬調整操作(インキキー開度の変更操作)の情報が入ったら、模擬変更モードが選択されたものとしてもよい。 Further, a simulation change mode for simulating and changing the color development can be selected. When the simulation change mode is selected for the display of the image 17 of the detected color pattern, the image control unit 11b performs the simulation change of the ink supply amount. An image 18 of a simulated change color pattern whose color development state is changed in response to is additionally displayed. It should be noted that the simulation change mode may be selected when information on the simulation adjustment operation of the ink supply state (change operation of the ink key opening) is entered by the operator.
 この模擬変更色絵柄の画像18は、検出色絵柄の画像17をベースとしながらインキ供給量の模擬変更に応じて検出色絵柄の画像17の色を変更させるものとする。この場合も、目標色絵柄の画像16と、模擬変更色絵柄の画像18とを隣接させて、視認による対比を容易にさせているが、この表示の並び方もこれに限るものではなく、画面の一端側から、目標色絵柄の画像16、検出色絵柄の画像17、模擬変更色絵柄の画像18の順で表示してもよい。 This simulated change color picture 18 is based on the detected color picture 17 and changes the color of the detected color picture 17 in accordance with the simulated change in the ink supply amount. Also in this case, the target color pattern image 16 and the simulated change color pattern image 18 are adjacent to facilitate visual comparison. However, the display arrangement is not limited to this. From one end side, the target color picture image 16, the detected color picture image 17, and the simulated change color picture image 18 may be displayed in this order.
 この印刷後のインキ供給量の模擬変更の際、目標色絵柄の画像16、検出色絵柄の画像17、模擬変更色絵柄の画像18の各画像についても、等価な色として画像表示しなくては、適正に対比することができない。
 そこで、画像制御部11bでは、目標色絵柄の画像16は、前記絵柄画像データに、印刷物の見本の色特性である印刷見本プロファイル(ターゲットプロファイル、印刷見本のプロファイル)とモニタ12の色特性である画像表示プロファイル(モニタプロファイル)とを作用させて生成する。また、検出色絵柄の画像17は、絵柄画像データに、測色計14の色特性であるセンサプロファイルとモニタ12の色特性である画像表示プロファイル(モニタプロファイル)とを作用させて生成する。模擬変更色絵柄の画像18は、検出色絵柄に、印刷機1の色特性である印刷機プロファイル(キーゾーン毎のインキ供給量及び画線率によって選択される印刷デバイスプロファイル群)とモニタ12の色特性である画像表示プロファイル(モニタプロファイル)とを作用させてインキ供給量の変更操作に応じて色調を変化させるように生成する。この場合も、各プロファイルは、データベース31~33(区別しない場合は30)から呼び出して用いる。
When the ink supply amount after printing is simulated, each of the target color pattern image 16, the detected color pattern image 17, and the simulated change color pattern image 18 must be displayed as an equivalent color. , Can not contrast properly.
Therefore, in the image control unit 11b, the image 16 of the target color pattern includes the print sample profile (target profile, print sample profile) which is the color characteristic of the sample of the printed material and the color characteristic of the monitor 12 in the pattern image data. Generated by acting an image display profile (monitor profile). The detected color picture image 17 is generated by applying the sensor profile as the color characteristic of the colorimeter 14 and the image display profile (monitor profile) as the color characteristic of the monitor 12 to the picture image data. The image 18 of the simulated change color pattern includes, on the detected color pattern, a printing machine profile (a printing device profile group selected by an ink supply amount and a line drawing rate for each key zone) that is a color characteristic of the printing machine 1 and the monitor 12. The image display profile (monitor profile), which is a color characteristic, is applied to generate the color tone according to the ink supply amount changing operation. Also in this case, each profile is called from the databases 31 to 33 (or 30 if not distinguished) and used.
 また、装置本体11には、インキ供給量調整操作情報の後に色調適正情報を受けるとその時点のインキ供給量に基づいてデータベース30に記憶された対応関係(各プロファイル)を更新する機能(データ更新部)11dをさらに備えている。
 なお、データベース30には、印刷資材(インキ,印刷用紙,ブランケットの各種類等)毎に、例えば、図6(a),図6(b)に示すように、インキキー開度(Kk,Kc,Km,Ky)及び画線率(Ak,Ac,Am,Ay)に各ICCデータ[たとえば、絵柄データ(k,c,m,y)と色空間座標値(L,a,b)との関係]を対応させたものである。
Further, the apparatus main body 11 has a function (data update) for updating the correspondence relationship (each profile) stored in the database 30 based on the ink supply amount at that time when the color tone appropriate information is received after the ink supply amount adjustment operation information. Part) 11d.
In the database 30, for each printing material (each type of ink, printing paper, blanket, etc.), for example, as shown in FIGS. 6 (a) and 6 (b), the ink key opening (Kk, Kc, Km, Ky) and the image rate (Ak, Ac, Am, Ay), and each ICC data [for example, pattern data (k, c, m, y) and color space coordinate values (L * , a * , b * ) The relationship between the two is related.
 このようなインキキー開度、画線率をパラメータにしたICCプロファイル(cmyk⇔Labの関係)を更新する例としては、図7~図9にそれぞれシアンcに関するL,a,bの各座標値について示すように、絵柄データ(k,c,m,y)及びキーゾーンの画線率(Ak,Ac,Am,Ay)をパラメータに現在のインキキー開度Kcに対する各絵柄データ(k,c,m,y)の色座標値、例えばL*,a*,b*を現在印刷物のスキャナ入力画像によって補正することができる。 As an example of updating the ICC profile (relationship of cmyk⇔Lab) using the ink key opening degree and the image area ratio as parameters, FIGS. 7 to 9 show L * , a * and b * for cyan c, respectively. As shown with respect to the coordinate values, the design data (k, c, m, y) and the drawing rate (Ak, Ac, Am, Ay) of the key zone are used as parameters for each design data (k, The color coordinate values of c, m, y), for example L *, a *, b *, can be corrected by the scanner input image of the current printed matter.
 さらに説明すると、以下の手順でデバイスプロファイルは更新される。
(1)まず、現在の印刷物のLabは色計測センサ(スキャナ)の信号RGBをスキャナプロファイル(Lab⇔RGB)に作用させて入手する。
(2)現在の印刷物の絵柄データ(k,c,m,y)は既知なので、これにより、絵柄データ(k,c,m,y)に対応する現在の印刷物のLab値は既知となる。
(3)この絵柄データ(k,c,m,y)とLab値との対応関係によりICCプロファイルを更新することができる。
(4)さらに、現在の各キーゾーンのキー開度は既知であり、また、現在のキーゾーン画線率は絵柄データから既知であるので、上記データにより、キー開度,画線率をパラメータにしたデバイス(ICC)プロファイルを更新することができる。
More specifically, the device profile is updated by the following procedure.
(1) First, the Lab of the current printed matter is obtained by applying the signal RGB of the color measurement sensor (scanner) to the scanner profile (Lab⇔RGB).
(2) Since the pattern data (k, c, m, y) of the current printed material is known, the Lab value of the current printed material corresponding to the pattern data (k, c, m, y) is thereby known.
(3) The ICC profile can be updated by the correspondence between the pattern data (k, c, m, y) and the Lab value.
(4) Further, since the current key opening of each key zone is known, and the current key zone drawing rate is known from the pattern data, the key opening and drawing rate are parameterized from the above data. The updated device (ICC) profile can be updated.
 更に、図10を参照して、インキ供給量(インキキー開度)と発色値(ここでは色座標)のと対応関係にかかるプロファイルの一更新例について説明する。ただし、下記の学習方法は本発明の方法を説明する一具体例に過ぎない。
 まず、目標とする発色値(Target発色値)が与えられると、対象プロファイルのデフォルトカーブでTarget発色値となる点P1からキー開度Aを設定する。対象のプロファイルが正しければ、このキー開度AでTarget発色値が得られるが、もしも、対象のプロファイルが正しくなければ、このキー開度AではTarget発色値からずれた発色値になってしまう。例えば、キー開度Aで印刷した結果、Target発色値からずれた点P2の発色値になってしまう場合、この点P2に沿ったプロファイルカーブを設定し、これを学習変更カーブとする。そして、この学習変更カーブ上のTarget発色値に対応するキー開度E(点P3参照)で印刷する。学習したプロファイル(学習変更カーブ)が正しければ、このキー開度EでTarget発色値が得られるが、もしも、このプロファイルがまだ正しくなければ、もう一度、上記の処理を繰り返して、学習更新する。
Furthermore, with reference to FIG. 10, an update example of the profile relating to the correspondence between the ink supply amount (ink key opening) and the color value (here, color coordinates) will be described. However, the following learning method is only one specific example for explaining the method of the present invention.
First, when a target color value (Target color value) is given, the key opening A is set from the point P1 that becomes the Target color value in the default curve of the target profile. If the target profile is correct, a Target color value can be obtained at this key opening A, but if the target profile is not correct, the color value deviates from the Target color value at this key opening A. For example, if the color value at point P2 deviates from the Target color value as a result of printing at the key opening A, a profile curve along this point P2 is set, and this is used as the learning change curve. And it prints with the key opening degree E (refer point P3) corresponding to the Target coloring value on this learning change curve. If the learned profile (learning change curve) is correct, a target color value can be obtained at this key opening E. If this profile is not correct yet, the above processing is repeated once again to update learning.
 なお、データベース30は、図11に示すように、多数のインキキー開度(Kk,Kc,Km,Ky),画線率(Ak,Ac,Am,Ay)をパラメータに絵柄データ(k,c,m,y)と色座標値(L*,a*,b*)の関係からインキキー開度(Kk,Kc,Km,Ky),画線率(Ak,Ac,Am,Ay)をパラメータのICCプロファイルデータがデータ群として作成され、適宜更新されることになる。 As shown in FIG. 11, the database 30 has image data (k, c, Ky, K, K, Km) and image data (k, c, Am, Ay) as parameters. m, y) and the color coordinate values (L *, a *, b *), the ink key opening degree (Kk, Kc, Km, Ky) and the image area ratio (Ak, Ac, Am, Ay) are parameters ICC Profile data is created as a data group and updated as appropriate.
 さらに、装置本体11には、上述のオペレータによる色合わせを自動で行なう機能(色合わせ部)11eが備えられ、この自動色合わせモードが選択されると、色合わせ部11eでは、目標色絵柄画像16の色と検出色絵柄画像17の色との差(色差)が許容限度以上あると、この色差に応じてインキ供給量(プリセット値を含む)を調整する。この場合も、印刷機1のプロファイルを用いれば、色差が許容限度内になるように、インキ供給量若しくはインキ供給量の変更量を容易に算出することができる。 Further, the apparatus main body 11 is provided with a function (color matching unit) 11e for automatically performing color matching by the above-described operator. When this automatic color matching mode is selected, the color matching unit 11e has a target color picture image. If the difference (color difference) between the 16 colors and the color of the detected color picture image 17 exceeds an allowable limit, the ink supply amount (including preset values) is adjusted according to the color difference. Also in this case, if the profile of the printing machine 1 is used, the ink supply amount or the change amount of the ink supply amount can be easily calculated so that the color difference is within the allowable limit.
(方法構成及び作用、効果)
 本発明の第1実施形態にかかる印刷色調制御支援装置及び印刷色調管理装置は上述のように構成されているので、図4,図5に示すように、印刷色調制御支援及び印刷色調管理を行なうことができる。
(Method configuration, operation and effect)
Since the printing color tone control support device and printing color tone management device according to the first embodiment of the present invention are configured as described above, printing color tone control support and printing color tone management are performed as shown in FIGS. be able to.
 つまり、図4に示すように、製版データ(絵柄データ)を取得し(ステップs10,取得ステップ)、この絵柄データに印刷見本(校正刷り、ゲラ)のICCプロファイルを作用させて印刷見本の色(目標色絵柄の画像)16をモニタ12の画面12aに映し出す(ステップs20,目標色絵柄表示ステップ)。なお、ここで、印刷見本のICCプロファイルを作用させる代わりに、印刷見本をスキャナ14で直接スキャン(測色)して(ステップs10´,取得ステップ)、スキャン(測色)情報から印刷見本の色(目標色絵柄の画像)16をモニタ12の画面12aに映し出してもよい。つまり、スキャナ出力RGBをスキャナプロファイルRGB⇔Labに作用させてLabを算出し、このLabをモニタプロファイルLab⇔R´G´B´に作用させて、R´G´B´を得てモニタに映し出すことができる。 That is, as shown in FIG. 4, plate making data (pattern data) is acquired (step s10, acquisition step), and the ICC profile of the print sample (proof print, galley) is applied to the pattern data to obtain the color of the print sample ( The target color picture image 16 is displayed on the screen 12a of the monitor 12 (step s20, target color picture display step). Here, instead of operating the ICC profile of the print sample, the print sample is directly scanned (colorimetry) by the scanner 14 (step s10 ′, acquisition step), and the color of the print sample is determined from the scan (colorimetry) information. (Image of target color picture) 16 may be displayed on the screen 12a of the monitor 12. That is, the scanner output RGB is applied to the scanner profile RGB⇔Lab to calculate Lab, and this Lab is applied to the monitor profile Lab⇔R′G′B ′ to obtain R′G′B ′ and display it on the monitor. be able to.
 そして、製版データ(絵柄画像データ)から各キーゾーンの画線率を計算し(ステップs30,画線率演算ステップ)、次に、プリセット関数(API関数)を用いて、各インキキーゾーンの絵柄画線率に対応するインキキー開度に各インキキーをプリセットする(ステップs40,プリセットステップ)。さらに、このプリセットしたインキキー開度に応じた想定される印刷物(想定色絵柄の画像17´)の色をモニタ12の画面12aに映し出す(ステップs50)。この際、インキキー開度、画線率をパラメータとしたデフォルトICCプロファイルデータベースを利用する。
 なお、インキキー開度に応じた色とは、インキキー開度に応じて印刷面上へのインキ供給量(換言すれば、インキの膜厚)が設定され、このインキ供給量(インキの膜厚)に応じて発するインキ色のことである。つまり、インキ膜厚が大きくなればそのインキの発色が強まり、インキ膜厚が小さくなればそのインキの発色が弱まり、印刷絵柄のうち、複数のインキの混合色の部分は、各インキのバランスで色調が変化するので、各インキキー開度を調整すれば色調も変化する。
Then, the drawing rate of each key zone is calculated from the plate-making data (pattern image data) (step s30, drawing rate calculation step), and then a picture image of each ink key zone is used using a preset function (API function). Each ink key is preset to the ink key opening corresponding to the linearity (step s40, preset step). Further, the color of the assumed printed matter (assumed color picture image 17 ′) corresponding to the preset ink key opening is displayed on the screen 12a of the monitor 12 (step s50). At this time, a default ICC profile database using the ink key opening and the image line ratio as parameters is used.
The color corresponding to the ink key opening is the amount of ink supplied to the printing surface (in other words, the ink film thickness) according to the ink key opening, and this ink supply amount (ink film thickness). It is an ink color that is emitted in response to. In other words, as the ink film thickness increases, the color development of the ink becomes stronger, and as the ink film thickness decreases, the color development of the ink weakens. Since the color tone changes, the color tone changes if each ink key opening is adjusted.
 この結果、モニタ12の画面12aには、印刷見本(目標色絵柄の画像)16の色とプリセットしたインキキー開度に応じた印刷物(想定色絵柄の画像17´)の色とが対比表示される。
 この対比表示に基づいて、モニタ12の画面12aに表示された、プリセットしたインキキー開度に応じた印刷物(想定色絵柄の画像17´)の色が印刷見本の色(第1画像)16と合っているかを判定する(ステップs60,判定ステップ)。
As a result, the screen 12a of the monitor 12 displays the color of the print sample (target color pattern image) 16 and the color of the printed matter (the assumed color pattern image 17 ') corresponding to the preset ink key opening. .
Based on this comparison display, the color of the printed material (image 17 ′ of the assumed color pattern) corresponding to the preset ink key opening displayed on the screen 12a of the monitor 12 matches the color (first image) 16 of the print sample. (Step s60, determination step).
 ここで、プリセットしたインキキー開度に応じた印刷物の想定色絵柄の画像17´が印刷見本(目標色絵柄の画像)16の色と合っていないと判断したら、オペレータはインキキー開度を調整する(ステップs70,事前色合わせステップ)。このとき、オペレータは、モニタに映し出される、インキキー開度調整に応じて想定色絵柄の画像17´の色を変えた模擬色変更絵柄の画像18´の色を参照しながら、モニタの印刷見本の色に容易に色合わせすることができる。 If the operator determines that the assumed color pattern image 17 ′ of the printed material corresponding to the preset ink key opening does not match the color of the print sample (target color pattern image) 16, the operator adjusts the ink key opening ( Step s70, preliminary color matching step). At this time, the operator refers to the color of the image 18 ′ of the simulated color changing pattern 18 ′ that is displayed on the monitor and changes the color of the image 17 ′ of the assumed color pattern according to the ink key opening adjustment. It can be easily matched to the color.
 また、この時には、実際の印刷は行なっていないので損紙等の発生はなく印刷資材は何ら消費されない。しかも、インキ供給量調整操作に応じて模擬変更色絵柄の画像18の色が変更されるので、オペレータは実際のインキ供給量調整操作により違和感なく色合わせの事前調整を行なうことができる。
 そして、色が合えば、本刷り印刷を実施する(ステップs80,印刷ステップ)。ここでは、必要最小限に枚数だけ印刷を行なって印刷を停止するものとする。例えば枚葉印刷の場合、印刷機を容易に停止することができることから、通常、見当と色合わせとで10~100枚程度の試し刷りを行い、色と見当をあわせるまで数回繰り返す。したがって、枚葉印刷の場合、従来の手順に沿いながら、印刷を停止することになる。本刷り印刷したら、得られた印刷物15の色をスキャナ14でスキャン(測色)して(ステップs90,測色ステップ)、このスキャン(測色)情報から印刷物15の色の画像(検出色絵柄の画像)17をモニタ12の画面12aに映し出す(ステップs100,検出色絵柄表示ステップ)。
Further, at this time, since actual printing is not performed, there is no generation of waste paper or the like, and no printing material is consumed. In addition, since the color of the image 18 of the simulated change color pattern is changed according to the ink supply amount adjustment operation, the operator can make prior color adjustment without any sense of incongruity by the actual ink supply amount adjustment operation.
If the colors match, the main printing is performed (step s80, printing step). Here, it is assumed that the printing is stopped by performing the minimum number of sheets. For example, in the case of sheet-fed printing, since the printing press can be easily stopped, about 10 to 100 test prints are usually performed for register and color matching, and repeated several times until the color and register are matched. Therefore, in the case of sheet-fed printing, printing is stopped while following the conventional procedure. After the main printing, the color of the obtained printed matter 15 is scanned (colorimetric) by the scanner 14 (step s90, colorimetric step), and the color image (detected color pattern) of the printed matter 15 is obtained from this scan (colorimetric step) information. ) 17 is displayed on the screen 12a of the monitor 12 (step s100, detected color picture display step).
 この結果、モニタ12の画面12aには、印刷見本の色の画像(目標色絵柄)16と印刷物15の色の画像(検出色絵柄の画像)17とが対比表示される。
 この対比表示に基づいて、モニタ12の画面12aに表示された印刷見本の色の画像(目標色絵柄の画像)16と印刷物15の色の画像(検出色絵柄の画像)17とが合っているかを判定する(ステップs110,判定ステップ)。
As a result, the color image (target color pattern) 16 of the print sample and the color image (detected color pattern image) 17 of the printed matter 15 are displayed in contrast on the screen 12 a of the monitor 12.
Based on this contrast display, whether the color image (target color picture image) 16 of the print sample displayed on the screen 12a of the monitor 12 matches the color image (detected color picture image) 17 of the printed matter 15 or not. Is determined (step s110, determination step).
 ここで、印刷物15の色(検出色絵柄の画像17の色)が印刷見本の色(目標色絵柄の画像16の色)と合っていないと判断したら、まず、現在のインキキー開度及び画線率と今回スキャナで取得した色データとをもとにデータベース(インキキー開度及び画線率をパラメータとしたデフォルトICCプロファイルデータベース)を更新する(ステップs120,データベース更新ステップ)。そして、オペレータはインキキー開度を調整する(ステップs130,印刷後色合わせステップ,模擬変更色絵柄表示ステップ)。 Here, if it is determined that the color of the printed matter 15 (the color of the detected color pattern image 17) does not match the color of the print sample (the color of the target color pattern image 16), first, the current ink key opening and image line are determined. The database (default ICC profile database using the ink key opening and the image line rate as parameters) is updated based on the rate and the color data acquired by the scanner this time (step s120, database update step). Then, the operator adjusts the ink key opening (step s130, post-printing color matching step, simulated change color picture display step).
 このときも、モニタに映し出される、インキキー開度調整に応じて色が変わる模擬変更色絵柄の画像18の色と印刷見本(目標色絵柄の画像)16の色とを参照しながら、模擬変更色絵柄の画像18の色を印刷見本(目標色絵柄の画像)16の色に容易に色合わせすることができる。また、このモニタに画像を表示する際、直近に更新されたデータベースを利用することで、より精度の高い色表示ができ、色合わせをより高精度に行なえる。 Also at this time, the simulated change color is displayed while referring to the color of the image 18 of the simulated change color picture and the color of the print sample (target color picture image) 16 that are displayed on the monitor and change in color according to the ink key opening adjustment. The color of the pattern image 18 can be easily matched to the color of the print sample (target color pattern image) 16. Further, when displaying an image on this monitor, by using a database that has been updated recently, more accurate color display can be performed, and color matching can be performed with higher accuracy.
 また、この場合も、実際のインキ供給量調整操作に応じて模擬変更色絵柄の画像18の色が変更されるので、オペレータは実際のインキ供給量調整操作により違和感なく色合わせの調整を行なうことができる。
 この後、再び、印刷ステップ(ステップs80)、測色ステップ(ステップs90)、第2表示ステップ(ステップs100)を実施し、模擬変更色絵柄の画像18の色が印刷見本の目標色絵柄画像16の色と合うまで、ステップs110,s120,s130,s80,s90,s100の処理を繰り返す。
Also in this case, since the color of the image 18 of the simulated change color pattern is changed according to the actual ink supply amount adjustment operation, the operator can adjust the color matching without any sense of incongruity by the actual ink supply amount adjustment operation. Can do.
Thereafter, the printing step (step s80), the color measurement step (step s90), and the second display step (step s100) are performed again, and the color of the simulated modified color pattern image 18 is the target color pattern image 16 of the print sample. Steps s110, s120, s130, s80, s90, and s100 are repeated until the color matches.
 この結果、実際の印刷物の検出結果を得ながら、これに基づいて、印刷見本の目標色絵柄画像16と検出色絵柄の画像17とを同一の画面12aに対比表示し、しかも、この画面12aに、さらに、インキキー開度調整に応じて色が変わる模擬変更色絵柄の画像18を対比表示するので、これを参照しながら、オペレータは印刷色をモニタの印刷見本の色に容易に色合わせすることができる。また、少数印刷しては一旦印刷を停止して色合わせを行なうので、損紙も少なくなる。 As a result, while obtaining the detection result of the actual printed matter, based on this, the target color picture image 16 of the print sample and the image 17 of the detected color picture are displayed in contrast on the same screen 12a, and on this screen 12a. Furthermore, since the image 18 of the simulated change color pattern whose color changes according to the ink key opening adjustment is displayed in comparison, the operator can easily match the print color with the color of the print sample of the monitor while referring to this. Can do. In addition, since printing is stopped once a small number of prints are made and color matching is performed, there is less loss of paper.
 さらに、この際、データベースがより適正に更新されるので、このデータベースを利用することにより、その後の制御をより高精度に行なうことができる。なお、このデータベースは、印刷資材(インキ種、紙種、ブランケット種等)及び必要であれば環境条件(周囲温度・湿度、湿し水温度、インキ温度、ローラ群の温度等)毎に整理されて、次回の印刷のときに必要に応じて選択されるものとする。 Furthermore, since the database is updated more appropriately at this time, the subsequent control can be performed with higher accuracy by using this database. This database is organized by printing materials (ink type, paper type, blanket type, etc.) and, if necessary, environmental conditions (ambient temperature / humidity, dampening water temperature, ink temperature, roller group temperature, etc.). In the next printing, it is selected as necessary.
 なお、この際、自動色合わせモードを選択すれば、目標色絵柄画像16の色と検出色絵柄画像17の色との差(色差)が許容限度内になるように、インキ供給量(プリセット値を含む)を自動で調整するので、オペレータは、同一画面上の、印刷見本の目標色絵柄画像16と模擬変更色絵柄の画像18,18´とを目視しながらこの自動での調整を監視すればよい。 At this time, if the automatic color matching mode is selected, the ink supply amount (preset value) is set so that the difference (color difference) between the color of the target color picture image 16 and the color of the detected color picture image 17 is within the allowable limit. Therefore, the operator can monitor the automatic adjustment while visually observing the target color pattern image 16 of the print sample and the images 18 and 18 'of the simulated change color pattern on the same screen. That's fine.
 本実施形態の場合、本印刷色調制御支援装置を枚葉印刷機に適用しているので、図12に示すように、通常、印刷機を起動して所定枚数(例えば10~100枚程度)印刷(調整用印刷)しては印刷機の調整(例えば、見当合わせ等)を行ない、その後、再び印刷機を起動して所定枚数印刷しては印刷機の再調整を行なうことを、繰り返しながら調整を完了し(図12では調整のための印刷を3回実施する場合を示している)、通常印刷(本刷り)に入るようにする。 In the case of the present embodiment, since the printing color tone control support device is applied to a sheet-fed printing machine, as shown in FIG. 12, the printing machine is usually started and a predetermined number of sheets (for example, about 10 to 100 sheets) is printed. (Adjustment printing) is performed by adjusting the printing press (for example, registering), then starting the printing press again, printing a predetermined number of prints, and then re-adjusting the printing press. Is completed (FIG. 12 shows a case where printing for adjustment is performed three times), and normal printing (main printing) is started.
 本印刷色調制御支援及び本印刷色調制御は、このような枚葉印刷機に特有な処理を利用しながら、初回の調整用印刷の前に、インキ供給量のプリセット値の確認を行ない、確認の結果プリセット値の更新(修正)が必要な場合には更新を行なうことにより、印刷開始時には、実際の印刷物の色調が印刷見本に極めて近づいたものにすることができる。
 そして、印刷機1で印刷した実際の印刷物の色調をセンサ14で計測して同一のモニタ画面で印刷見本の色調と対比し確認して、インキ供給量の調整が必要であればインキ供給量の模擬調整をして、次いで、模擬調整の結果を実際の印刷時のインキ供給量に反映させて、再び印刷機1で印刷を行ない、これにより得られた実際の印刷物の色調を再びセンサ14で計測して同一画面で印刷見本の色調と対比し確認する。さらに、必要であればインキ供給量の模擬調整をして上記処理を繰り返す。対比,確認の結果、実際の印刷物の色調が印刷見本に十分に近づいた(OK)と判断したら、通常印刷(本刷り)に入る。
The print color tone control support and the print color tone control are performed by checking the preset value of the ink supply amount before the first adjustment printing, using the processing unique to the sheet-fed printing press. When the result preset value needs to be updated (modified), the color tone of the actual printed matter can be made very close to that of the print sample at the start of printing.
Then, the color tone of the actual printed matter printed by the printing press 1 is measured by the sensor 14 and checked against the color tone of the print sample on the same monitor screen. If the ink supply amount needs to be adjusted, the ink supply amount is adjusted. After making the simulation adjustment, the result of the simulation adjustment is reflected in the ink supply amount at the time of actual printing, printing is performed again by the printing machine 1, and the color tone of the actual printed matter obtained by this is again measured by the sensor 14. Measure and check against the color tone of the print sample on the same screen. Further, if necessary, the ink supply amount is simulated and the above process is repeated. As a result of the comparison and confirmation, if it is determined that the color tone of the actual printed matter is sufficiently close to the print sample (OK), normal printing (main printing) is started.
 このように、同一のモニタ画面で実際の印刷物の色調を印刷見本の色調と対比して確認するので実際の印刷物の色調を高精度に印刷見本の色調に近づけることができ、印刷品質の向上に大きく寄与する。
 また、この実際の印刷物の色調を印刷見本の色調と対比しながらインキ供給量の模擬調整をする際にも、模擬変更色絵柄の画像18の色を目標色絵柄画像16の色と比較しながら高精度に調整できるので、少なくとも色調制御(色合わせ)に関しては調整用印刷の回数をより少ないものにすることができ、損紙低減や印刷時間(特に本刷り前の調整時間)の短縮を促進できる。
In this way, since the color tone of the actual printed material is checked against the color tone of the print sample on the same monitor screen, the color tone of the actual printed material can be brought close to the color tone of the print sample with high accuracy, and the print quality can be improved. A big contribution.
Further, when the ink supply amount is simulated and adjusted while comparing the actual color tone of the printed matter with the color tone of the print sample, the color of the image 18 of the simulated change color pattern is compared with the color of the target color pattern image 16. Because it can be adjusted with high precision, at least with regard to color tone control (color matching), the number of adjustment printings can be made smaller, reducing paper loss and shortening the printing time (especially the adjustment time before actual printing). it can.
[第2実施形態]
 次に、本発明の第2実施形態について説明する。なお、本実施形態は、本印刷色調制御支援や本印刷色調制御を適用する印刷機が新聞用や商業用オフセット輪転印刷機等の輪転機であり、印刷機を連続で印刷しながら、印刷色調制御支援や印刷色調制御を実施する。
[Second Embodiment]
Next, a second embodiment of the present invention will be described. In this embodiment, the printing press to which the printing color tone control support and the printing color tone control are applied is a rotary press such as a newspaper or a commercial offset rotary printing press, and the printing color tone is printed while continuously printing the printing press. Implement control support and print color control.
 つまり、輪転機の場合、連続紙(ウェブ)を用いるため、印刷を開始したら極力印刷機を停止させたくない。そこで、通常は、図13に示すように、印刷機を起動したら、低速運転(調整用印刷)で印刷機の調整(例えば、印刷見当及び断裁見当の調整や色合わせ等)を行ない、調整完了後、印刷機の運転速度を上昇させて通常印刷(本刷り)に入るようにする。 That is, in the case of a rotary press, continuous paper (web) is used. Therefore, normally, as shown in FIG. 13, when the printing press is started, adjustment of the printing press (for example, adjustment of print registration and cutting registration, color matching, etc.) is performed at low speed operation (adjustment printing), and the adjustment is completed. Thereafter, the operation speed of the printing press is increased so that normal printing (full printing) is started.
 このような輪転機において、印刷色調制御支援や印刷色調制御を実施する場合、第1実施形態と同様に、まず、印刷機の起動前に、インキ供給量のプリセット値の確認を行ない、確認の結果プリセット値の更新(修正)が必要な場合には更新を行なうことにより、印刷開始時には、実際の印刷物の色調が印刷見本に極めて近づくようにする。
 そして、印刷機を起動し、印刷機の調整を行なう低速運転時に、所定のタイミングで印刷物をサンプリングし、この印刷物の色調をセンサ14で計測する。なお、この所定のタイミングとは、低速運転開始後、印刷状態が安定するまで待ったタイミングであり、印刷機の特性から予め低速運転開始後一定時間経過した時点として与えることができる。
In such a rotary press, when the printing color tone control support and the printing color tone control are performed, as in the first embodiment, first, the preset value of the ink supply amount is checked before the printing machine is started. When the result preset value needs to be updated (corrected), it is updated so that the actual color tone of the printed matter is very close to the print sample at the start of printing.
Then, at the time of low speed operation in which the printing press is activated and the printing press is adjusted, the printed matter is sampled at a predetermined timing, and the color tone of the printed matter is measured by the sensor 14. The predetermined timing is a timing at which the printing state is waited after the low-speed operation is started, and can be given as a point in time after a predetermined time has elapsed after the start of the low-speed operation from the characteristics of the printing press.
 センサ14で計測した絵柄は、検出色絵柄としてモニタ12の同一画面に目標色絵柄と対比して表示して、検出色絵柄の色調と目標色絵柄の色調とを対比して色を確認して、インキ供給量の調整が必要であればインキ供給量の模擬調整をして、次いで、模擬調整の結果を実際の印刷時のインキ供給量に反映させて(図13中に、「変更」と示す)、再び印刷機で印刷を行ない、これにより得られた実際の印刷物の色調を再びセンサ14で計測して同一画面で印刷見本の色調と対比し確認し、必要であればインキ供給量の模擬調整をして上記処理を繰り返す。 The pattern measured by the sensor 14 is displayed as a detected color pattern on the same screen of the monitor 12 in comparison with the target color pattern, and the color is confirmed by comparing the color tone of the detected color pattern and the target color pattern. If it is necessary to adjust the ink supply amount, the ink supply amount is simulated, and then the result of the simulation adjustment is reflected in the ink supply amount at the time of actual printing (in FIG. Print again on the printing press, and measure the color tone of the actual printed material obtained by this again with the sensor 14 and check it against the color tone of the print sample on the same screen. Perform the simulation adjustment and repeat the above process.
 図13に示す例では、1回の模擬調整により、実際の印刷物の色調が印刷見本に十分に近づいた(OK)と判断された場合を示しているが、複数回の模擬調整を要する場合も考えられる。
 このように、実際の印刷物の色調が印刷見本に十分に近づいたと判断されたら、印刷機の運転速度を上昇させて通常印刷(本刷り)に入る。
The example shown in FIG. 13 shows a case where it is determined that the color tone of the actual printed matter is sufficiently close to the print sample (OK) by one simulation adjustment, but there are cases where a plurality of simulation adjustments are required. Conceivable.
As described above, when it is determined that the color tone of the actual printed matter is sufficiently close to the print sample, the operation speed of the printing press is increased to start normal printing (full printing).
 本実施形態にかかる模擬変更色絵柄表示等の印刷色調制御支援及び印刷色調制御(色合せ)は、上述のように行なわれるので、印刷機による印刷を続行しながら、印刷中に得られる検出色絵柄に基づいてこれを目標色絵柄に近づけるように模擬変更によって色合せを行なうことになる。
 このような手法の一方で、検出色絵柄としては所定の周期で取り込むことができるので、この略リアルタイムで得られる検出色絵柄を見ながら、これが目標色絵柄に近づくように実際のインキ供給量を操作することも考えられる。
Since the printing color tone control support and the printing color tone control (color matching) such as the simulated change color pattern display according to the present embodiment are performed as described above, the detected color obtained during printing while continuing printing by the printing press. Based on the design, color matching is performed by a simulation change so that it is close to the target color design.
On the other hand, since the detected color pattern can be captured at a predetermined cycle, the actual ink supply amount is adjusted so that it approaches the target color pattern while observing the detected color pattern obtained in substantially real time. It is also possible to operate.
 特に、輪転印刷機1´の場合、図15に示すように、印刷物15´の色を測定するセンサ(測色計)14´を印刷ユニット1A´の直下流に、オンラインで設けて、印刷物15´の色を連続的に測定しながら、絵柄色調管理装置本体(演算装置)11´によって、測色された検出色絵柄が目標色絵柄に近づくように、フィードバックによりインキ供給量を調整し印刷絵柄の色調を制御する技術が開発されている。 In particular, in the case of the rotary printing press 1 ′, as shown in FIG. 15, a sensor (colorimeter) 14 ′ for measuring the color of the printed matter 15 ′ is provided on-line immediately downstream of the printing unit 1A ′. While continuously measuring the color of ′, the ink supply amount is adjusted by feedback so that the detected color pattern measured by the pattern color tone management device body (arithmetic unit) 11 ′ approaches the target color pattern, and the printed pattern A technology for controlling the color tone of the image has been developed.
 なお、図15に示す例では、印刷ユニット1A´は、k(ブラック;墨),c(シアン;藍),m(マゼンタ;紅),y(イエロー;黄)のプロセスカラー4色の版胴2,ブランケット胴3が印刷物15´となるウェブ(連続紙)の走行経路の両面に配設され、最終色(ここでは、y(イエロー;黄))の直下流にセンサ(測色計)14´が配置されている。 In the example shown in FIG. 15, the printing unit 1A ′ has a plate cylinder of four process colors of k (black; black), c (cyan; indigo), m (magenta; red), and y (yellow; yellow). 2, the blanket cylinder 3 is disposed on both sides of the travel path of the web (continuous paper) that becomes the printed matter 15 ', and the sensor (colorimeter) 14 is located immediately downstream of the final color (here, y (yellow; yellow)). 'Is arranged.
 このような技術にも本発明を適用できる。
 つまり、オンラインのセンサ14´を設けた場合、検出色絵柄をリアルタイムで連続的に得ることが可能になるので、モニタ12に時々刻々変化しうる検出色絵柄を映し出しながら印刷を管理することができる。したがって、オペレータは、色調管理を自動モードから手動モードに切替えて、リアルタイムでモニタ12に映し出される検出色絵柄を見ながら、映し出される検出色絵柄の色が目標色絵柄の色により近づくように、インキ供給量を手動調整することができる。
The present invention can also be applied to such a technique.
That is, when the on-line sensor 14 'is provided, it is possible to continuously obtain the detected color pattern in real time, so that it is possible to manage printing while displaying the detected color pattern that can change from moment to moment on the monitor 12. . Therefore, the operator switches the color tone management from the automatic mode to the manual mode and observes the detected color pattern displayed on the monitor 12 in real time so that the color of the detected color pattern displayed is closer to the color of the target color pattern. The supply amount can be adjusted manually.
 しかし、実際のインキ供給量は変更操作をしてから一定の応答遅れをもって変化するため、この応答遅れを無視してリアルタイムの検出色絵柄を目標色絵柄に近づけようとすると、図14に実線で示すように、変更操作を過剰に行なうことになり易く、結果として、インキ供給量が適正になるのに時間を要してしまうおそれがある。
 この点、模擬変更による色合せは、得られた検出色絵柄に対して最適な変更操作をすることになり、この模擬変更操作の間の印刷が損紙になったとしても、模擬変更結果に基づいて実際のインキ供給量を調整操作すれば、図14に破線で示すように、一定の応答時間を持って印刷物の色調を適正なものにすることができ、結果として、損紙発生量や印刷時間の増大を抑えることが期待できる。
However, since the actual ink supply amount changes with a certain response delay after the change operation, if the response delay is ignored and an attempt is made to bring the real-time detected color pattern closer to the target color pattern, a solid line in FIG. As shown, the change operation tends to be performed excessively, and as a result, it may take time for the ink supply amount to be appropriate.
In this regard, color matching by simulated change will result in an optimal change operation for the obtained detected color pattern, and even if printing during this simulated change operation becomes waste paper, If the actual ink supply amount is adjusted based on this, as shown by the broken line in FIG. 14, the color tone of the printed matter can be made appropriate with a certain response time, and as a result, An increase in printing time can be expected to be suppressed.
(その他)
 以上、本発明の実施形態について説明したが、本発明の実施の形態は上述のものに限定されない。
 例えば、上記の実施形態では、模擬変更時に、モニタ12に表示する画像の例を、目標色絵柄の画像16,想定色絵柄の画像17´,模擬変更色絵柄の画像18´の3画像、或いは、目標色絵柄の画像16,検出色絵柄の画像17,模擬変更色絵柄の画像18の3画像を、同一画面に並べて表示しているが、模擬変更時に、想定色絵柄の画像17´や検出色絵柄の画像17を省き、想定色絵柄の画像17´から模擬変更に応じて変化する模擬変更色絵柄の画像18´と目標色絵柄の画像16との2画像の対比表示や、検出色絵柄の画像17から模擬変更に応じて変化する模擬変更色絵柄の画像18と目標色絵柄の画像16との2画像の対比表示としてもよい。
(Other)
As mentioned above, although embodiment of this invention was described, embodiment of this invention is not limited to the above-mentioned thing.
For example, in the above embodiment, three examples of the image displayed on the monitor 12 at the time of the simulation change are the target color picture image 16, the assumed color picture image 17 ′, and the simulated change color picture image 18 ′, or The target color picture image 16, the detected color picture image 17, and the simulated change color picture image 18 are displayed side by side on the same screen. At the time of the simulation change, the assumed color picture image 17 'is detected. The image 17 of the color pattern is omitted, and the contrast display of the two images of the image 18 ′ of the simulated change color pattern that changes in accordance with the simulation change from the image 17 ′ of the assumed color pattern and the image 16 of the target color pattern, and the detected color pattern It is also possible to display two images, a simulated change color pattern image 18 and a target color pattern image 16 that change in accordance with the simulated change from the image 17.
 さらに、上記の実施形態では、これらの画像16,17,17´,18,18´をモニタ12の同一画面に表示するようにしているが、必ずしもモニタ12の同一画面に表示するものとは限定されない。つまり、複数のモニタであっても、これらのモニタが同一の発色特性となるように適正にキャリブレーションされていて、これらのモニタが接近して並んで配置されていれば、各モニタに画像16,17,17´,18,18´を分割して表示しても、上記と同様の効果を得ることができる。 Furthermore, in the above embodiment, these images 16, 17, 17 ', 18, 18' are displayed on the same screen of the monitor 12, but they are not necessarily displayed on the same screen of the monitor 12. Not. In other words, even if there are a plurality of monitors, if these monitors are properly calibrated so as to have the same color development characteristics, and these monitors are arranged close to each other, the image 16 is displayed on each monitor. , 17, 17 ', 18, 18' can be divided and displayed to obtain the same effect as described above.
 本発明は、オフセット輪転印刷機や枚葉印刷機をはじめとして、刷版を用いて印刷を行う種々の印刷機に広く適用することができる。 The present invention can be widely applied to various printing machines that perform printing using a printing plate, such as a rotary offset printing press and a sheet-fed printing press.

Claims (23)

  1.  モニタ(12)の画面(12a)上に、印刷機(1,1´)で印刷する絵柄を印刷見本の色調で目標色絵柄として映し出す目標色絵柄表示ステップ(s20)と、
     前記印刷機(1,1´)で印刷された印刷物(15,15´)をセンサ(14,14´)で測色し、前記測色された測色値を前記センサ(14,14´)及び前記モニタ(12)の各デバイスプロファイルに作用させて、前記センサ(14,14´)で測色された色調で検出色絵柄として前記モニタ(12)の前記目標色絵柄と同一発色特性の画面上に映し出す検出色絵柄表示ステップ(s100)と、
     前記印刷機(1,1´)のインキ供給量の模擬変更量を、インキ供給量と色値との関係を含んだ前記印刷機(1,1´)及び前記モニタ(12)の各デバイスプロファイルに作用させて、前記検出色絵柄をインキ供給量の模擬変更に応じた色調に変更して模擬変更色絵柄として前記モニタ(12)の前記目標色絵柄と同一発色特性の画面上に映し出す模擬変更色絵柄表示ステップ(s130)と、をそなえている
    ことを特徴とする、印刷色調制御支援方法。
    A target color picture display step (s20) for projecting a picture to be printed by the printing press (1, 1 ′) on the screen (12a) of the monitor (12) as a target color picture in the color tone of the print sample;
    The printed matter (15, 15 ′) printed by the printing press (1, 1 ′) is measured by a sensor (14, 14 ′), and the measured colorimetric value is measured by the sensor (14, 14 ′). And a screen having the same color development characteristics as the target color pattern of the monitor (12) as a detected color pattern in the color tone measured by the sensor (14, 14 ') by acting on each device profile of the monitor (12) A detection color pattern display step (s100) projected on the screen;
    Each device profile of the printer (1, 1 ') and the monitor (12) including a simulated change amount of the ink supply amount of the printer (1, 1') including the relationship between the ink supply amount and the color value The detected color pattern is changed to a color tone corresponding to the simulated change of the ink supply amount, and the simulated change is displayed on the screen having the same color development characteristics as the target color pattern of the monitor (12) as the simulated changed color pattern A printing color tone control support method comprising a color picture display step (s130).
  2.  前記目標色絵柄表示ステップ(s20)では、前記印刷する絵柄の絵柄データを前記印刷見本及び前記モニタ(12)の各デバイスプロファイルに作用させて、前記印刷見本の色調で映し出す
    ことを特徴とする、請求項1記載の印刷色調制御支援方法。
    In the target color pattern display step (s20), the pattern data of the pattern to be printed is applied to each device profile of the print sample and the monitor (12), and is displayed in the color tone of the print sample. The printing color tone control support method according to claim 1.
  3.  前記目標色絵柄表示ステップ(s20)では、前記印刷見本を前記センサ(14,14´)で測色した画像を前記モニタ(12)の画面(12a)上に映し出す
    ことを特徴とする、請求項1記載の印刷色調制御支援方法。
    In the target color picture display step (s20), an image obtained by measuring the color of the print sample with the sensor (14, 14 ') is displayed on a screen (12a) of the monitor (12). The printing color tone control support method according to 1.
  4.  前記模擬変更色絵柄表示ステップ(s130)では、前記模擬変更色絵柄を前記モニタ(12)の前記目標色絵柄及び前記検出色絵柄と同一発色特性の画面上に映し出す
    ことを特徴とする、請求項1~3の何れか1項に記載の印刷色調制御支援方法。
    The simulation change color picture display step (s130) displays the simulation change color picture on a screen having the same color development characteristics as the target color picture and the detected color picture of the monitor (12). 4. The printing color tone control support method according to any one of 1 to 3.
  5.  前記模擬変更量の入力操作部材は、前記印刷機の実際のインキ供給量調整操作部材であって、前記模擬変更色絵柄表示ステップ(s130)では、前記インキ供給量調整操作部材の情報を受けて前記模擬変更色絵柄を前記モニタの画面上に映し出す
    ことを特徴とする、請求項1~4の何れか1項に記載の印刷色調制御支援方法。
    The simulated change amount input operation member is an actual ink supply amount adjustment operation member of the printing press. In the simulated change color pattern display step (s130), information on the ink supply amount adjustment operation member is received. The printing color tone control support method according to any one of claims 1 to 4, wherein the simulated changed color pattern is displayed on a screen of the monitor.
  6.  前記インキ供給量に対応するパラメータは、インキキー開度,インキ元ローラ回転数,及び版胴回転に対するインキ呼出ローラの呼び出し回数、並びにデジタルインキポンプの吐出量の少なくともいずれかである
    ことを特徴とする、請求項1~5の何れか1項に記載の印刷色調制御支援方法。
    The parameter corresponding to the ink supply amount is at least one of an ink key opening degree, an ink original roller rotation number, a number of calls of an ink call roller with respect to a plate cylinder rotation, and a discharge amount of a digital ink pump. The printing color tone control support method according to any one of claims 1 to 5.
  7.  前記印刷機(1,1´)は、枚葉印刷機である
    ことを特徴とする、請求項1~6の何れか1項に記載の印刷色調制御支援方法。
    The printing color tone control support method according to any one of claims 1 to 6, wherein the printing machine (1, 1 ') is a sheet-fed printing machine.
  8.  請求項1~7の何れか1項に記載の印刷色調制御支援方法を実施すると共に、
     前記模擬変更色絵柄表示ステップ(s130)において同一発色特性の画面上に映し出された前記目標色絵柄と前記模擬変更色絵柄とを比べながら前記模擬変更量を操作しインキ供給量を模擬変化させ、前記模擬変更色絵柄の色調を前記目標色絵柄の色調に色合せする色合せステップとをそなえている
    ことを特徴とする、印刷色調管理方法。
    While implementing the printing color tone control support method according to any one of claims 1 to 7,
    In the simulated change color pattern display step (s130), the simulated change amount is manipulated while comparing the target color pattern projected on the screen having the same color development characteristics with the simulated change color pattern, and the ink supply amount is simulated and changed. A printing color tone management method comprising: a color matching step of matching the color tone of the simulated change color pattern to the color tone of the target color pattern.
  9.  前記印刷機(1,1´)による印刷開始前に、前記モニタ(12)の画面(12a)上に、前記印刷機(1,1´)で印刷する絵柄を印刷見本の色調で目標色絵柄として映し出すと共に、前記印刷する絵柄の絵柄データを前記印刷機(1,1´)及び前記モニタ(12)の各デバイスプロファイルに作用させて前記印刷機(1,1´)で印刷する絵柄を前記印刷機(1,1´)により印刷した場合の想定色絵柄として映し出す印刷開始前絵柄表示ステップ(s50)と、
     前記印刷開始前絵柄表示ステップ(s50)で映し出された前記目標色絵柄と前記想定色絵柄とを比べながら前記模擬変更量を操作しインキ供給量を模擬変化させ、前記想定色絵柄の色調を前記目標色絵柄の色調に色合せする事前色合せステップ(s70)と、
     前記印刷開始前に、前記事前色合せステップにより操作された前記模擬変更量に合わせて実際のインキ供給量をプリセットするプリセットステップ(s70)と、をさらにそなえている
    ことを特徴とする、請求項8記載の印刷色調管理方法。
    Before starting printing by the printing press (1, 1 ′), the pattern to be printed by the printing press (1, 1 ′) on the screen (12a) of the monitor (12) is the target color pattern in the color tone of the printing sample. And the pattern data of the pattern to be printed is applied to the device profiles of the printer (1, 1 ′) and the monitor (12) to print the pattern to be printed by the printer (1, 1 ′). A pre-printing pattern display step (s50) that is projected as an assumed color pattern when printed by the printing press (1, 1 ');
    The simulated change amount is manipulated to compare the target color pattern projected in the pre-printing pattern display step (s50) and the assumed color pattern, and the ink supply amount is simulated to change the color tone of the assumed color pattern. A pre-color matching step (s70) for matching the color tone of the target color pattern;
    The method further comprises a preset step (s70) of presetting an actual ink supply amount in accordance with the simulated change amount operated in the preliminary color matching step before the start of printing. Item 9. The printing color tone management method according to Item 8.
  10.  前記模擬変更色絵柄表示ステップ及び前記色合せステップ(s130)は、前記印刷機(1,1´)による印刷後に前記印刷機(1,1´)を停止させて行なう
    ことを特徴とする、請求項8又は9記載の印刷色調管理方法。
    The simulated change color picture display step and the color matching step (s130) are performed by stopping the printing machine (1, 1 ') after printing by the printing machine (1, 1'). Item 10. The printing color tone management method according to Item 8 or 9.
  11.  前記模擬変更色絵柄表示ステップ及び前記色合せステップ(s130)は、前記印刷機(1,1´)による印刷を続行しながら行なう
    ことを特徴とする、請求項8又は9記載の印刷色調管理方法。
    The printing color tone management method according to claim 8 or 9, wherein the simulated change color picture display step and the color matching step (s130) are performed while continuing printing by the printing machine (1, 1 '). .
  12.  前記印刷機(1,1´),前記センサ(14,14´)及び前記モニタ(12)の各デバイスプロファイル、又は、前記印刷機(1,1´),前記センサ(14,14´),前記モニタ(12)及び前記印刷見本の各デバイスプロファイルは、予めデータベース(30)に記憶され、前記色合せステップ及び/又は前記事前色合せステップで色合わせされたインキ供給量に基づいて前記データベースに記憶された対応するデバイスプロファイルを更新する
    ことを特徴とする、請求項8~11の何れか1項に記載の印刷色調管理方法。
    Device profiles of the printing press (1, 1 ′), the sensor (14, 14 ′) and the monitor (12), or the printing press (1, 1 ′), the sensor (14, 14 ′), The device profiles of the monitor (12) and the print sample are stored in the database (30) in advance, and the database is based on the ink supply amount color-matched in the color matching step and / or the pre-color matching step. 12. The printing color tone management method according to claim 8, wherein the corresponding device profile stored in is updated.
  13.  モニタ(12)と、前記モニタ(12)の画面(12a)上に映し出す画像を制御する画像制御部(11b)とを備え、
     前記画像制御部(11b)は、印刷機(1,1´)で印刷する絵柄の印刷見本の色調である目標色絵柄と、前記印刷機(1,1´)で印刷された印刷物(15,15´)をセンサ(14,14´)で測色した測色値を前記センサ(14,14´)及び前記モニタ(12)の各デバイスプロファイルに作用させた色調である検出色絵柄と、前記印刷機(1,1´)のインキ供給量の模擬変更量を、インキ供給量と色値との関係を含んだ前記印刷機(1,1´)及び前記モニタ(12)の各デバイスプロファイルに作用させて、前記検出色絵柄をインキ供給量の模擬変更に応じた色調に変更したい模擬変更色絵柄とを、前記モニタ(12)の一画面上に映し出すように制御する
    ことを特徴とする、印刷色調制御支援装置。
    A monitor (12), and an image controller (11b) for controlling an image displayed on the screen (12a) of the monitor (12),
    The image control unit (11b) includes a target color pattern which is a color tone of a print sample of a pattern to be printed by the printing machine (1, 1 ′), and a printed matter (15, 1 ′) printed by the printing machine (1, 1 ′). 15 ′), the detected color pattern which is a color tone obtained by applying the colorimetric values measured by the sensors (14, 14 ′) to the device profiles of the sensors (14, 14 ′) and the monitor (12); The simulated change amount of the ink supply amount of the printing machine (1, 1 ′) is added to each device profile of the printing machine (1, 1 ′) and the monitor (12) including the relationship between the ink supply amount and the color value. And controlling the detected color pattern to be displayed on one screen of the monitor (12) with the simulated color pattern to be changed to a color tone corresponding to the simulated change of the ink supply amount. Print color tone control support device.
  14.  前記画像制御部(11b)は、前記印刷する絵柄の絵柄データを前記印刷見本及び前記モニタ(12)の各デバイスプロファイルに作用させて、前記印刷見本の色調で前記モニタ(12)の画面(12a)上に映し出す
    ことを特徴とする、請求項13記載の印刷色調制御支援装置。
    The image control unit (11b) causes the pattern data of the pattern to be printed to act on each device profile of the print sample and the monitor (12), and the screen (12a) of the monitor (12) with the color tone of the print sample. 14. The printing color tone control support apparatus according to claim 13, wherein the printing color tone control support apparatus projects the image above.
  15.  前記画像制御部(11b)は、前記模擬変更色絵柄を前記モニタ(12)の前記目標色絵柄及び前記検出色絵柄と同一発色特性の画面上に映し出す
    ことを特徴とする、請求項13又は14記載の印刷色調制御支援装置。
    15. The image control unit (11b) projects the simulated changed color pattern on a screen having the same color development characteristics as the target color pattern and the detected color pattern of the monitor (12). The printing color tone control support apparatus described.
  16.  前記模擬変更量の入力操作部材は、前記印刷機(1,1´)の実際のインキ供給量調整操作部材であって、
     前記画像制御部(11b)は、前記インキ供給量調整操作部材の情報を受けて前記模擬変更色絵柄を前記モニタ(12)の画面(12a)上に映し出す
    ことを特徴とする、請求項13~15の何れか1項に記載の印刷色調制御支援装置。
    The simulated change amount input operation member is an actual ink supply amount adjustment operation member of the printing press (1, 1 '),
    The image control unit (11b) receives the information of the ink supply amount adjusting operation member and displays the simulated changed color pattern on the screen (12a) of the monitor (12). The printing color tone control support apparatus according to any one of 15.
  17.  前記インキ供給量に対応するパラメータは、インキキー開度,インキ元ローラ回転数,及び版胴回転に対するインキ呼出ローラの呼び出し回数、並びにデジタルインキポンプの吐出量の少なくとも何れかである
    ことを特徴とする、請求項13~16の何れか1項に記載の印刷色調制御支援装置。
    The parameter corresponding to the ink supply amount is at least one of an ink key opening degree, an ink original roller rotation number, a number of calls of an ink call roller with respect to a plate cylinder rotation, and a discharge amount of a digital ink pump. The printing color tone control support device according to any one of claims 13 to 16.
  18.  前記印刷機(1,1´)は、枚葉印刷機である
    ことを特徴とする、請求項13~17の何れか1項に記載の印刷色調制御支援装置。
    The printing color tone control support apparatus according to any one of claims 13 to 17, wherein the printing machine (1, 1 ') is a sheet-fed printing machine.
  19.  請求項13~18の何れか1項に記載の印刷色調制御支援装置と、
     前記の同一発色特性の画面上に映し出された前記目標色絵柄と前記模擬変更色絵柄とを比べながら前記模擬変更量を操作しインキ供給量を模擬変化させ、前記模擬変更色絵柄の色調を前記目標色絵柄の色調に自動で色合せする色合せ部(11e)とをそなえている
    ことを特徴とする、印刷色調管理装置。
    A printing color tone control support device according to any one of claims 13 to 18,
    The simulated change amount is manipulated to compare the target color picture projected on the screen with the same color development characteristics and the simulated change color picture, and the ink supply amount is simulated to change the color tone of the simulated change color picture. A printing color tone management apparatus comprising a color matching unit (11e) that automatically matches a color tone of a target color picture.
  20.  前記画像制御部(11b)は、前記印刷機(1,1´)による印刷開始前に、前記モニタの画面上に、前記印刷機(1,1´)で印刷する絵柄を印刷見本の色調で目標色絵柄として映し出すと共に、前記印刷する絵柄の絵柄データを前記印刷機(1,1´)及び前記モニタの各デバイスプロファイルに作用させて前記印刷機(1,1´)で印刷する絵柄を前記印刷機(1,1´)により印刷した場合の想定色絵柄として映し出すように構成され、
     前記色合せ部は、前記モニタ(12)に映し出された前記目標色絵柄と前記想定色絵柄とを比べながら前記模擬変更量を操作しインキ供給量を模擬変化させ、前記想定色絵柄の色調を前記目標色絵柄の色調に自動で色合せするように構成され、
     前記印刷開始前に、前記色合せ部(11e)により操作された前記模擬変更量に合わせて実際のインキ供給量をプリセットするプリセット部をそなえている
    ことを特徴とする、請求項19記載の印刷色調管理装置。
    The image control unit (11b) displays a pattern to be printed by the printing machine (1, 1 ′) on the screen of the monitor in the color tone of the printing sample before starting printing by the printing machine (1, 1 ′). The pattern to be printed by the printing machine (1, 1 ′) by projecting the pattern data of the picture to be printed on the device profile of the printing machine (1, 1 ′) and the monitor while projecting as a target color picture. It is configured to project as an assumed color pattern when printed by the printing machine (1, 1 '),
    The color matching unit manipulates the simulated change amount while comparing the target color pattern projected on the monitor (12) with the assumed color pattern to simulate and change the ink supply amount, and changes the color tone of the assumed color pattern. It is configured to automatically match the color of the target color pattern,
    20. The printing according to claim 19, further comprising: a preset unit that presets an actual ink supply amount in accordance with the simulated change amount operated by the color matching unit (11e) before the start of printing. Color management device.
  21.  前記色合せ部(11e)は、前記模擬変更色絵柄の色調を前記目標色絵柄の色調に自動で色合せする処理を前記印刷機(1,1´)による印刷後に前記印刷機(1,1´)を停止させて行なう
    ことを特徴とする、請求項19又は20記載の印刷色調管理装置。
    The color matching unit (11e) performs a process of automatically matching the color tone of the simulated changed color pattern to the color tone of the target color pattern after printing by the printing machine (1, 1 '). 21. The printing color tone management apparatus according to claim 19, wherein the printing color tone management apparatus is stopped.
  22.  前記色合せ部(11e)は、前記模擬変更色絵柄の色調を前記目標色絵柄の色調に自動で色合せする処理を前記印刷機(1,1´)による印刷を続行しながら行なう
    ことを特徴とする、請求項19又は20記載の印刷色調管理装置。
    The color matching unit (11e) performs a process of automatically matching the color tone of the simulated changed color pattern to the color tone of the target color pattern while continuing printing by the printing machine (1, 1 '). The printing color tone management apparatus according to claim 19 or 20.
  23.  前記印刷機(1,1´),前記センサ(14,14´)及び前記モニタ(12)の各デバイスプロファイル、又は、前記印刷機(1,1´),前記センサ(14,14´),前記モニタ(12)及び前記印刷見本の各デバイスプロファイルは、予めデータベースに記憶され、前記色合せ部で色合わせされたインキ供給量に基づいて前記データベース(30)に記憶された対応するデバイスプロファイルを更新するデバイスプロファイル更新部(11d)をそなえている
    ことを特徴とする、請求項19~22の何れか1項に記載の印刷色調管理装置。
    Device profiles of the printing press (1, 1 ′), the sensor (14, 14 ′) and the monitor (12), or the printing press (1, 1 ′), the sensor (14, 14 ′), Each device profile of the monitor (12) and the print sample is stored in a database in advance, and the corresponding device profile stored in the database (30) is stored based on the ink supply amount color-matched by the color matching unit. The print color tone management apparatus according to any one of claims 19 to 22, further comprising a device profile update unit (11d) for updating.
PCT/JP2009/056075 2008-03-31 2009-03-26 Print tone control assisting method and apparatus, and print tone control method and apparatus WO2009123001A1 (en)

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