CN102082893B - Digital proof color correcting method and digital proof color correcting device - Google Patents
Digital proof color correcting method and digital proof color correcting device Download PDFInfo
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Abstract
The invention discloses a digital proof color correcting method, comprising the following steps: determining a first color data value corresponding to the currently acquired first objective visual colorimetric value according to the mapping relationship of a first objective visual colorimetric value and a first color data value which are stored; acquiring a second objective visual colorimetric value corresponding to a color target figure according to the color target figure generated corresponding to the first color data value; judging whether the error between the second objective visual colorimetric value and the target objective visual colorimetric value exceeds a preset error range, wherein the target objective visual colorimetric value is as follows: source equipment determines out the first objective visual colorimetric value corresponding to the received second color data value according to the stored second color data value and the first objective visual colorimetric value; and continuously correcting or finishing the color correction according to a judgment result. The invention also discloses a digital proof color correcting device. According to the invention, the color matching accuracy can be improved, and the smoothness of drawing can be ensured.
Description
Technical field
The present invention relates to the digital printing field, especially relate to a kind of digital sample printing color calibrating method and a kind of digital sample printing device.
Background technology
Development along with technology such as digital sample printing, digital printings; Color management occupies more and more important position in print production, in whole printing process, color management is in middle cardiac status; Color management is combined with printing technology, can increase substantially press quality.
In press, digital sample printing is the important means of carrying out quality monitoring in the printing process, and printing the risk and cost is very important for reducing.Digital sample printing is the basis with the digital printing system, in printing process, according to the page picture and text digital information of handling well, utilizes printer directly to export sample manuscript.Digital sample printing is shortened and is drawn a design the time through the direct input tediously long operations of drawing a design such as substituting glue sheet that tradition draws a design, printing down of drawing a design, and improves the efficient of drawing a design.
In the digital sample printing process; Because equipment is concrete otherness on color characteristics, every kind of equipment all has the device color spaces of self apparent color, and source device is different with the equipment color of target device; Target device is drawn a design, and the picture color that obtains is also different with the color of source device.For example; Printing machine and printer; Same color data values possibly represented various colors on two kinds of different equipment; This just means that same pictures is different through the visual color effect of the picture that obtains after printing machine and the printer output respectively, at this moment, manages the color characteristics of distinct device with regard to needing color management.
Color management is adjusted the color of drawing a design through the control to ICC Profile (International Color Consortium Profile, international color joint operation standard) file, realizes and the coupling of printing color, sets up corresponding color management standard.
Existing describe with instance, in this example, at first, color management is carried out characterization to source device and target device, and the color data values of source device and target device and one group and device-independent objective vision chromatic value are set up mapping relations one to one; According to these mapping relations, at first first color data values is transformed to objective vision chromatic value, translate into second color data values by the objective vision chromatic value of target device after again with conversion, export again.Usually color data values adopts CMYK (Cyan Magenta Yellow Black, blue or green article are yellow black) value representation, and objective vision chromatic value adopts the Lab value representation, and wherein, L representes brightness, a, the different colourity of b representative.
In above-mentioned characterization process; The precision of color matching directly has influence on the quality of output, and the precision of color matching is to estimate the leading indicator of color management, if the precision of coupling is lower; Just can not must reappear the color of printing well, can not play the effect of drawing a design.
In addition, because the mode of this multidimensional table of ICC Profile itself is a kind of process that adopts discrete sampling value reproduction successive value, according to sampling thheorem; Have only sample frequency to reach the complete former data of 2 times of ability of former data highest frequency; But in practical application, sampled data can not be too much; Particularly the middle color lump quantity of the look pommel horse figure of ICC Profile can not be too much; Too much can cause measuring the overlong time of color lump itself, run counter to color management simply, principle fast, and color lump quantity can not too much be easier to occur the problem of flatness in drawing.
Summary of the invention
The embodiment of the invention provides a kind of digital sample printing color calibrating method, is used to improve the precision of color matching, guarantees the flatness of drawing, and this method comprises:
The first objective vision chromatic value of having stored according to target device and the mapping relations of first color data values are determined and the current first corresponding color data values of obtaining of the first objective vision chromatic value;
First color data values according to said correspondence generates look target figure, obtains the second corresponding objective vision chromatic value of said look target figure;
Judge whether the error between the said second objective vision chromatic value and the objective vision chromatic value of target exceeds preset error range; The objective vision chromatic value of said target is: by source device according to second color data values of having stored and the mapping relations of the first objective vision chromatic value, the first objective vision chromatic value corresponding that determine with second color data values its reception;
If according to the said second objective vision chromatic value the said current first objective vision chromatic value that obtains is revised, and is obtained the revised first objective vision chromatic value;
If not, finish color correction;
Wherein, the said current first objective vision chromatic value that obtains is revised, is specifically comprised according to the said second objective vision chromatic value:
Calculate the difference of the objective vision chromatic value of said target and the said second objective vision chromatic value, and obtain the product of said difference and correction factor, said correction factor is not more than the merchant of said difference and the objective vision chromatic value of said target;
Calculate said current first objective vision chromatic value that obtains and said product with, obtain the revised first objective vision chromatic value.
More excellent, said first, second color data values is CMY value or CMYK value or CMYKGO value.
More excellent; When the said first objective vision chromatic value of having stored and the said current first objective vision chromatic value that obtains comprise brightness L, colourity a, colourity b; According to L, a, b different correction factors is adopted in the influence of colourity gradual change respectively, correction factor with the influence of colourity gradual change is inversely proportional to.
More excellent, when among L, a, the b any one or multinomial when the colourity bounce-back occurring oppositely compensates correction for the bounce-back item.
More excellent, when adopting the white digital sample printing mode of simulation paper, the objective vision chromatic value of said target adopts absolute objective vision chromatic value.
More excellent, adopt when not simulating the white digital sample printing mode of paper, the objective vision chromatic value of said target adopts relatively objective vision chromatic value.
More excellent; When the said current first objective vision chromatic value that obtains being revised according to the said second objective vision chromatic value; In look target figure according to the error distribution color lump number between the said second objective vision chromatic value and the objective vision chromatic value of target; Said error is big more, and the color lump number that distributes for the said second objective vision chromatic value is many more.
The embodiment of the invention also provides a kind of digital sample printing color correction device, is used to improve the precision of color matching, guarantees the flatness of drawing, comprises definite unit, acquiring unit, judging unit, amending unit and end unit:
Said definite unit, the first objective vision chromatic value that is used for having stored according to target device and the mapping relations of first color data values are determined and the current first corresponding color data values of obtaining of the first objective vision chromatic value;
Said acquiring unit is used for generating look target figure according to first color data values of said correspondence, obtains the second corresponding objective vision chromatic value of said look target figure;
Said judging unit; Be used to judge whether the error between the said second objective vision chromatic value and the objective vision chromatic value of target exceeds preset error range; The objective vision chromatic value of said target is: by source device according to second color data values of having stored and the mapping relations of the first objective vision chromatic value, the first objective vision chromatic value corresponding that determine with second color data values its reception; If, trigger said amending unit, if not, trigger said end unit;
Said amending unit is used for according to the said second objective vision chromatic value the said current first objective vision chromatic value that obtains being revised;
Said end unit is used to finish color correction;
Wherein, said amending unit is revised the said current first objective vision chromatic value that obtains according to the said second objective vision chromatic value, specifically comprises:
Calculate the difference of the objective vision chromatic value of said target and the said second objective vision chromatic value, and obtain the product of said difference and correction factor, said correction factor is not more than the merchant of said difference and the objective vision chromatic value of said target;
Calculate said current first objective vision chromatic value that obtains and said product with, obtain the revised first objective vision chromatic value.
More excellent; Said amending unit is further used for: when the said first objective vision chromatic value of having stored and the said current first objective vision chromatic value that obtains comprise brightness L, colourity a, colourity b; According to L, a, b different correction factors is adopted in the influence of colourity gradual change respectively, correction factor with the influence of colourity gradual change is inversely proportional to.
More excellent, said amending unit is further used for: when among L, a, the b any one or multinomial when the colourity bounce-back occurring oppositely compensates correction for the bounce-back item.
In the embodiment of the invention, generate look target figure, obtain the second corresponding objective vision chromatic value of look target figure according to the current first corresponding color data values of obtaining of the first objective vision chromatic value; Judge whether the error between the second objective vision chromatic value and the objective vision chromatic value of target exceeds preset error range, when exceeding preset error range, when promptly the precision of color matching does not satisfy the cartographic accuracy requirement; According to the second objective vision chromatic value the current first objective vision chromatic value that obtains is revised; And obtain the revised first objective vision chromatic value, and then generate look target figure according to the revised first objective vision chromatic value, judge whether the precision of the color matching of this look target figure satisfies the cartographic accuracy requirement; If do not satisfy; Continue to revise, the circulation color correction, the error until between the second objective vision chromatic value and the objective vision chromatic value of target does not exceed preset error range; The precision that is color matching can satisfy the cartographic accuracy requirement, finishes color correction.In embodiments of the present invention, the precision of the picture color matching that after color correction, generates can satisfy the cartographic accuracy requirement, can reappear the color of printing well, plays the effect of drawing a design.
Further; When the current first objective vision chromatic value that obtains being revised according to the second objective vision chromatic value; In look target figure according to the error distribution color lump number between the second objective vision chromatic value and the objective vision chromatic value of target; Error is big more, is that the color lump number of the second objective vision chromatic value distribution is many more.Shortly; Distribute more color lump near the big second objective vision chromatic value of error, thereby when revising, possibly obtain more correction value, guarantee under the constant situation of color lump quantity; The maximized error that reduces; Improve the precision of color matching, simultaneously, can also under the constant situation of color lump quantity, guarantee the flatness of drawing.
Description of drawings
Fig. 1 is the particular flow sheet of a kind of digital sample printing color calibrating method in the embodiment of the invention;
Fig. 2 is the particular flow sheet of the instance of digital sample printing color calibrating method in the embodiment of the invention;
Fig. 3 is the structural representation of digital sample printing color correction device in the embodiment of the invention.
Embodiment
For improving the precision of color matching, reappear the color of printing preferably, the embodiment of the invention provides a kind of digital sample printing color calibrating method, and concrete handling process is as shown in Figure 1, comprising:
The first objective vision chromatic value that step 101, basis have been stored and the mapping relations of first color data values are determined and the current first corresponding color data values of obtaining of the first objective vision chromatic value;
Flow process as shown in Figure 1, during enforcement, first, second color data values can adopt multiple color mode; For example, can adopt CMYK, also can adopt CMY (Cyan Magenta Yellow; Blue or green article are yellow), can also adopt CMYKGO (Cyan Magenta Yellow Black Green Orange, the yellow black green orange of blue or green article); Certainly, can also adopt other color modes, can simulate corresponding color according to the color mode that adopts and get final product.
Flow process as shown in Figure 1; Step 103 is when implementing; The objective vision chromatic value of target is: by source device according to second color data values of having stored and the mapping relations of the first objective vision chromatic value, the first objective vision chromatic value corresponding that determine with second color data values its reception.
During enforcement, store the mapping relations of the first objective vision chromatic value and first color data values in the target device (like printer), store the mapping relations of second color data values and the first objective vision chromatic value in the source device (like printing machine).When source device receives one second color data values; Mapping relations according to second color data values and the first objective vision chromatic value; Find the first objective vision chromatic value corresponding with second color data values that receives; And with this first objective vision chromatic value as the objective vision chromatic value of target, and obtain.In this example, when source device did not receive second color data values of other inputs, the objective vision chromatic value of target was changeless.
During the objective vision chromatic value of the target of sending when target device reception sources equipment; According to the first objective vision chromatic value of storing in the target device and the mapping relations of first color data values; Determine and the first corresponding color data values of the objective vision chromatic value of target, and then generate look target figure according to this first color data values.
For guaranteeing the precision of color matching, the look target figure that generates is measured, obtain the second corresponding objective vision chromatic value of this look target figure; Calculate the error between the second objective vision chromatic value and the objective vision chromatic value of target, if error does not exceed preset error range, expression color matching precision is very high; The color that can reappear source device preferably, color correction finishes, and checks the picture that target device prints; If dissatisfied, can adjust again pictorial information.If error has exceeded preset error range, expression color matching precision is lower, can not reappear the color of source device preferably; Lost the effect of drawing a design, therefore, need adjust target device; To obtain higher color matching precision, embodiment sees also flow process among Fig. 1.
Wherein, step 104 is when implementing, after target device obtains the revised first objective vision chromatic value; Return step 101; And carry out subsequent step 102 successively to step 104, and judge whether the error between the revised first objective vision chromatic value and the objective vision chromatic value of target exceeds preset error range, circulation execution in step 101 is to step 104; Error until between the revised first objective vision chromatic value and the objective vision chromatic value of target does not exceed preset error range; When satisfying the required color matching precision of the color of reproduction source device, execution in step 105 finishes color correction.
Flow process as shown in Figure 1; Step 104 is when implementing, and concrete correcting mode is following: calculate the difference of the objective vision chromatic value of target and the second objective vision chromatic value, and obtain the product of difference and correction factor; Wherein, correction factor is not more than the merchant of difference and the objective vision chromatic value of target; Calculate current first objective vision chromatic value that obtains and product with, obtain the revised first objective vision chromatic value.
In order more clearly to give expression to the correcting mode of the first objective vision chromatic value, can its form with formula be experienced, specific as follows:
The revised first objective vision chromatic value=current first objective vision chromatic value+correction factor that obtains * (the objective vision chromatic value of the objective vision chromatic value-second of target), wherein,
Correction factor≤(the objective vision chromatic value of the objective vision chromatic value-second of target)/objective vision chromatic value of target.
The correction principle of above-mentioned formula is: if the objective vision chromatic value of second objective vision chromatic value<target; At this moment; Need to increase the current first objective vision chromatic value that obtains; At this moment, the difference of the objective vision chromatic value of target and the second objective vision chromatic value can play the effect of increase greater than 0; In like manner, if the objective vision chromatic value of second objective vision chromatic value>target, at this moment; Need reduce the current first objective vision chromatic value that obtains; At this moment, the difference of the objective vision chromatic value of target and the second objective vision chromatic value can play the effect that reduces less than 0.
In makeover process, for the accuracy of guarantee revising, should select correction factor accurately, when implementing usually, correction factor should be positioned between (0,0.1), avoids causing because of correction value is excessive bigger gradual change.
Because the correction to the first objective vision chromatic value is on the basis of the current first objective vision chromatic value that obtains, to implement; Therefore; The each correction all carried out correcting process again on the preceding basis of once revising, can realize the accumulation of error correction, improves the precision of color matching.
During enforcement; Existing digital sample printing generally is divided into the white digital sample printing of simulation paper or does not simulate the white digital sample printing of paper; Simulation paper is meant the color of the other a kind of paper of simulation on a kind of paper in vain; When adopting the white digital sample printing mode of simulation paper, the objective vision chromatic value of the target of mentioning in the flow process shown in Figure 1 adopts absolute objective vision chromatic value; When adopting when not simulating the white digital sample printing mode of paper, the objective vision chromatic value of the target of mentioning in the flow process shown in Figure 1 adopts relatively objective vision chromatic value, can guarantee not change form and aspect, improves the precision of color matching.
Usually select Lab as the objective vision chromatic value of using; Because L, a, b are different for the influence of colourity gradual change; Therefore, for guaranteeing the precision of color matching, can adopt different correction factors respectively to the influence of colourity gradual change according to L, a, b; Wherein, correction factor with the influence of colourity gradual change is inversely proportional to.
During enforcement, because L, a, b can separately revise, therefore, when among L, a, the b any one or multinomial when the colourity bounce-back occurring can oppositely compensate correction for the bounce-back item.
Certainly, when implementing, only revise for the point in the appointment colour gamut, will not revise the point that this bulletin colour is overseas, revised value exceeds colour gamut during as if correction, needs to reduce correction value, is positioned at the appointment colour gamut to satisfy this point.
Flow process as shown in Figure 1; Step 104 is when implementing; When the current first objective vision chromatic value that obtains being revised according to the second objective vision chromatic value; According to the error distribution color lump number between the second objective vision chromatic value and the objective vision chromatic value of target, error is big more in look target figure, is that the color lump number of the second objective vision chromatic value distribution is many more.Shortly; Distribute more color lump near the big second objective vision chromatic value of error, thereby when revising, possibly obtain more correction value, guarantee under the constant situation of color lump quantity; The maximized error that reduces; Improve the precision of color matching, simultaneously, can also under the constant situation of color lump quantity, guarantee the flatness of drawing.
Existing is that example describes with printing machine and printer, in this example, describes for convenient; Color data values adopts CMYK; Objective vision chromatic value adopts Lab, stores the CMYK-Lab mapping relations in the printing machine, stores Lab-CMYK mapping relations table in the printer; Error between the first objective vision chromatic value and the objective vision chromatic value of target is designated as DeltaE, and concrete steps are as shown in Figure 2:
The 2nd CMYK that step 203, basis find generates look target figure and prints;
The look target figure that step 204, measurement generate obtains measurement Lab corresponding among this look target figure, and calculates DeltaE according to measuring Lab and target Lab;
The look target figure that step 209, measurement generate obtains measurement Lab corresponding among this look target figure, and calculates DeltaE according to measuring Lab and target Lab;
Flow process as shown in Figure 2, the preset error range of mentioning in step 205 and the step 210 is set to (0,1.5) usually; To guarantee that color matching has higher precision, suppose that calculating DeltaE in the step 204 is 4.07, then exceeds (0; 1.5), continue execution in step 206; Supposing to calculate in step 204 or the step 209 DeltaE is 1.12, does not then exceed (0,1.5), finishes color correction.
Based on same inventive concept, the embodiment of the invention also provides a kind of digital sample printing color correction device, and is specifically as shown in Figure 3, comprises confirming unit 301, acquiring unit 302, judging unit 303, amending unit 304 and end unit 305:
Acquiring unit 302 is used for generating look target figure according to first color data values of correspondence, obtains the second corresponding objective vision chromatic value of look target figure;
Judging unit 303; Be used to judge whether the error between the second objective vision chromatic value and the objective vision chromatic value of target exceeds preset error range; The objective vision chromatic value of target is: by source device according to second color data values of having stored and the mapping relations of the first objective vision chromatic value, the first objective vision chromatic value corresponding that determine with second color data values its reception; If, trigger amending unit 304, if not, trigger end unit 305;
Amending unit 304 is used for according to the second objective vision chromatic value the current first objective vision chromatic value that obtains being revised;
In one embodiment; Amending unit 304 can be further used for: the difference of calculating the objective vision chromatic value of target and the second objective vision chromatic value; And obtaining the product of difference and correction factor, correction factor is not more than the merchant of difference and the objective vision chromatic value of target; Calculate current first objective vision chromatic value that obtains and product with, obtain the revised first objective vision chromatic value.
In one embodiment; Amending unit can also be further used for: when the first objective vision chromatic value comprises brightness L, colourity a, colourity b; According to L, a, b different correction factors is adopted in the influence of colourity gradual change respectively, correction factor with the influence of colourity gradual change is inversely proportional to.
In one embodiment, amending unit 304 can also be further used for: oppositely compensate correction for the bounce-back item colourity when bounce-back when any one or multinomial appearance the among L, a, the b.
In the embodiment of the invention, generate look target figure, obtain the second corresponding objective vision chromatic value of look target figure according to the current first corresponding color data values of obtaining of the first objective vision chromatic value; Judge whether the error between the second objective vision chromatic value and the objective vision chromatic value of target exceeds preset error range, when exceeding preset error range, when promptly the precision of color matching does not satisfy the cartographic accuracy requirement; According to the second objective vision chromatic value the current first objective vision chromatic value that obtains is revised; And obtain the revised first objective vision chromatic value, and then generate look target figure according to the revised first objective vision chromatic value, judge whether the precision of the color matching of this look target figure satisfies the cartographic accuracy requirement; If do not satisfy; Continue to revise, the circulation color correction, the error until between the second objective vision chromatic value and the objective vision chromatic value of target does not exceed preset error range; The precision that is color matching can satisfy the cartographic accuracy requirement, finishes color correction.In embodiments of the present invention, the precision of the picture color matching that after color correction, generates can satisfy the cartographic accuracy requirement, can reappear the color of printing well, plays the effect of drawing a design.
Further; When the current first objective vision chromatic value that obtains being revised according to the second objective vision chromatic value; In look target figure according to the error distribution color lump number between the second objective vision chromatic value and the objective vision chromatic value of target; Error is big more, is that the color lump number of the second objective vision chromatic value distribution is many more.Shortly; Distribute more color lump near the big second objective vision chromatic value of error, thereby when revising, possibly obtain more correction value, guarantee under the constant situation of color lump quantity; The maximized error that reduces; Improve the precision of color matching, simultaneously, can also under the constant situation of color lump quantity, guarantee the flatness of drawing.
Obviously, those skilled in the art can carry out various changes and distortion to the present invention and not break away from the spirit and scope of the present invention.Like this, if these modifications of the present invention and distortion belong within claim of the present invention and the equivalent technologies scope thereof, then the present invention also is intended to comprise these changes and is out of shape interior.
Claims (10)
1. a digital sample printing color calibrating method is characterized in that, comprising:
The first objective vision chromatic value of having stored according to target device and the mapping relations of first color data values are determined and the current first corresponding color data values of obtaining of the first objective vision chromatic value;
First color data values according to said correspondence generates look target figure, obtains the second corresponding objective vision chromatic value of said look target figure;
Judge whether the error between the said second objective vision chromatic value and the objective vision chromatic value of target exceeds preset error range; The objective vision chromatic value of said target is: by source device according to second color data values of having stored and the mapping relations of the first objective vision chromatic value, the first objective vision chromatic value corresponding that determine with second color data values its reception;
If according to the said second objective vision chromatic value the said current first objective vision chromatic value that obtains is revised, and is obtained the revised first objective vision chromatic value;
If not, finish color correction;
Wherein, the said current first objective vision chromatic value that obtains is revised, is specifically comprised according to the said second objective vision chromatic value:
Calculate the difference of the objective vision chromatic value of said target and the said second objective vision chromatic value, and obtain the product of said difference and correction factor, said correction factor is not more than the merchant of said difference and the objective vision chromatic value of said target;
Calculate said current first objective vision chromatic value that obtains and said product with, obtain the revised first objective vision chromatic value.
2. the method for claim 1 is characterized in that, said first, second color data values is yellow black CMYK value of blue or green yellow CMY value of article or blue or green article or the yellow black green orange CMYKGO value of blue or green article.
3. the method for claim 1; It is characterized in that; When the said first objective vision chromatic value of having stored and the said current first objective vision chromatic value that obtains comprise brightness L, colourity a, colourity b; According to L, a, b different correction factors is adopted in the influence of colourity gradual change respectively, correction factor with the influence of colourity gradual change is inversely proportional to.
4. method as claimed in claim 3 is characterized in that, oppositely compensates correction for the bounce-back item colourity when bounce-back when any one or multinomial appearance the among L, a, the b.
5. like each described method of claim 1 to 4, it is characterized in that when adopting the white digital sample printing mode of simulation paper, the objective vision chromatic value of said target adopts absolute objective vision chromatic value.
6. like each described method of claim 1 to 4, it is characterized in that adopt when not simulating the white digital sample printing mode of paper, the objective vision chromatic value of said target adopts relatively objective vision chromatic value.
7. the method for claim 1; It is characterized in that; When the said current first objective vision chromatic value that obtains being revised according to the said second objective vision chromatic value; According to the error distribution color lump number between the said second objective vision chromatic value and the objective vision chromatic value of target, said error is big more in look target figure, and the color lump number that distributes for the said second objective vision chromatic value is many more.
8. a digital sample printing color correction device is characterized in that, comprises definite unit, acquiring unit, judging unit, amending unit and end unit:
Said definite unit, the first objective vision chromatic value that is used for having stored according to target device and the mapping relations of first color data values are determined and the current first corresponding color data values of obtaining of the first objective vision chromatic value;
Said acquiring unit is used for generating look target figure according to first color data values of said correspondence, obtains the second corresponding objective vision chromatic value of said look target figure;
Said judging unit; Be used to judge whether the error between the said second objective vision chromatic value and the objective vision chromatic value of target exceeds preset error range; The objective vision chromatic value of said target is: by source device according to second color data values of having stored and the mapping relations of the first objective vision chromatic value, the first objective vision chromatic value corresponding that determine with second color data values its reception; If, trigger said amending unit, if not, trigger said end unit;
Said amending unit is used for according to the said second objective vision chromatic value the said current first objective vision chromatic value that obtains being revised;
Said end unit is used to finish color correction;
Wherein, said amending unit is revised the said current first objective vision chromatic value that obtains according to the said second objective vision chromatic value, specifically comprises:
Calculate the difference of the objective vision chromatic value of said target and the said second objective vision chromatic value, and obtain the product of said difference and correction factor, said correction factor is not more than the merchant of said difference and the objective vision chromatic value of said target;
Calculate said current first objective vision chromatic value that obtains and said product with, obtain the revised first objective vision chromatic value.
9. device as claimed in claim 8; It is characterized in that; Said amending unit is further used for: when the said first objective vision chromatic value of having stored and the said current first objective vision chromatic value that obtains comprise brightness L, colourity a, colourity b; According to L, a, b different correction factors is adopted in the influence of colourity gradual change respectively, correction factor with the influence of colourity gradual change is inversely proportional to.
10. device as claimed in claim 9 is characterized in that, said amending unit is further used for: oppositely compensate correction for the bounce-back item colourity when bounce-back when any one or multinomial appearance the among L, a, the b.
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Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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CN108819492B (en) * | 2018-05-22 | 2019-10-18 | 中煤航测遥感集团有限公司 | Digital sample printing color correcting method and device before environment protecting paper process color color printing |
CN108958674B (en) * | 2018-07-17 | 2021-06-01 | 武汉市蒙泰科技发展有限责任公司 | Ink-jet printer color-tracing method, system, storage medium and color-tracing equipment |
CN110888612B (en) * | 2019-11-12 | 2023-09-08 | 森大(深圳)技术有限公司 | Evaluation method, device, equipment and medium for printing target color gamut |
CN111626698A (en) * | 2020-05-19 | 2020-09-04 | 东彩塑胶颜料(深圳)有限公司 | Method for confirming plastic sample plate, terminal and computer readable storage medium |
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