CN102202161B - Blue paper proofing implementation method, system and blue paper proofing equipment - Google Patents
Blue paper proofing implementation method, system and blue paper proofing equipment Download PDFInfo
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- CN102202161B CN102202161B CN2010101309781A CN201010130978A CN102202161B CN 102202161 B CN102202161 B CN 102202161B CN 2010101309781 A CN2010101309781 A CN 2010101309781A CN 201010130978 A CN201010130978 A CN 201010130978A CN 102202161 B CN102202161 B CN 102202161B
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Abstract
The invention discloses a blue paper proofing implementation method and a blue paper proofing implementation system for solving the problems of low speed and low efficiency of the conventional blue paper proofing implementation scheme. The blue paper proofing implementation method comprises the following steps of: inputting eight-bit compressed image file format data obtained after a page to be proofed is subjected to raster image processing (RIP); and performing format conversion on the eight-bit compressed image file format data to acquire a one-bit tag image file format (TIFF) data, and outputting a specimen page according to the acquired one-bit TIFF data. The invention also discloses blue paper proofing equipment. According to the method, the system and the equipment, quick blue paper proofing is realized, and blue paper proofing efficiency is improved.
Description
Technical field
The present invention relates to technology before the seal of print field, relate in particular to a kind of blue paper draw a design implementation method, system and blue paper proofing facility.
Background technology
Along with popularizing of CTP (Computer To Plate, CTP) technology, the effect that digital sample printing and blue paper are drawn a design highlights day by day.It is two important front ends that the CTP flow process contains links of drawing a design that digital sample printing and blue paper are drawn a design, and both emphasize particularly on different fields.
Digital sample printing is also referred to as the site and draws a design, and is the important procedure of color monitoring.Digital sample printing is exactly the page of making colored desktop system; Without any type of simulation means, directly through digital sample printing equipment output specimen page, with the image page quality of operation before the inspection seal; For printing process provides with reference to specimen page, and the foundation that can sign and send to press is provided for the user.The input file of digital sample printing is through RIP (Raster ImageProcessing; The grating images processing) TIFF (the Tag Image File Format that obtains after; Tagged image file format) data; TIFF data both can be sent to digital sample printing equipment output specimen page, also can be sent to photo-composing machine, CTP equipment is handled.Wherein, tiff format is a kind of high-quality non-compressed image file form that is used to preserve original document.
Blue paper is drawn a design and is also referred to as format and draws a design, be with print big version be output unit a kind of relatively fast but the technology of drawing a design of low precision.Blue paper is drawn a design and is relatively paid attention to the speed of drawing a design, and not high to the quality requirement of drawing a design, thus generally do not do color management, and adopt compatible or alternative ink and plain paper to draw a design to get final product.Blue paper is drawn a design cooperating of inspection emphatically and printing, stress to draw a design original text and the content consistency that prints original text, and wherein, content consistency is ROOM (Rip Once, Output Many; A RIP, output is repeatedly) technological basic demand.The ROOM technology is meant through the same data that obtain behind the RIP, available various output equipment outputs.
In the prior art, blue paper is drawn a design and is realized through digital sample printing.At first the digital sample printing that provides in the prior art is introduced.The input file of digital sample printing is for TIFF data through obtaining behind the RIP, and is as shown in Figure 1, and the general handling process of existing digital sample printing comprises the steps:
S101, RDT (Real Dot Technology, true halftone dot technique) module become eight TIFF data with a TIFF data transaction, and this process is commonly referred to as the RDT processing links;
Through data analysis and merging, can half tone image (TIFF) data transaction of binaryzation be become continuous toned image (eight TIFF) data;
S102, color correction module are carried out color management to eight TIFF data, and this process is commonly referred to as the color correction link;
Because possibly there is certain deviation with the color of the required image of actual print in the color of continuous toned image (for example eight TIFF), so need through numerical operation methods such as calibration curves the deviation of color to be revised, this makeover process is called color management.
S103, extension net module are converted to TIFF data with eight TIFF data, and send the equipment output module to, and this process is commonly referred to as hangs the net link;
S104, equipment output module are according to hanging the TIFF data output specimen page that the net module transmits, and this process is commonly referred to as the equipment output element.
Though digital sample printing effect aspect color reducibility is preferable, because the device resolution of data volume rich, employing is higher, the speed that causes exporting specimen page is slow, and the efficient of drawing a design is lower.When drawing a design demand in the face of large batch of blue paper, slow, the inefficient drawback of digital sample printing speed is particularly evident.Therefore, draw a design slow, low one of technical problem that needs to be resolved hurrily in the prior art that becomes of efficient of speed of scheme of the blue paper of realizing through digital sample printing.
Summary of the invention
The embodiment of the invention provides a kind of blue paper draw a design implementation method and system, in order to solve the draw a design problem that speed is slow, efficient is lower of implementation of existing blue paper.
Accordingly, the embodiment of the invention also provides a kind of blue paper proofing facility.
The blue paper that the embodiment of the invention the provides implementation method of drawing a design comprises:
Import the page of waiting to draw a design and handle eight compressed image file formatted datas that obtain behind the RIP through grating images;
Said eight compressed image file formatted datas are carried out format conversion obtain tagged image file format TIFF data, and according to a TIFF data output specimen page that obtains.
Wherein, when exporting specimen page according to TIFF data that obtain, the lowest resolution of employing equipment support is exported.
Further, when exporting specimen page according to TIFF data that obtain, GDI exports based on GDI.
Said eight compressed image file formatted datas are carried out format conversion to be obtained also comprising said eight steps that the compressed image file formatted data is carried out color management before the TIFF data.
Wherein, said compressed image file form comprises JPEG's jpeg format, JPEG 2000 forms or streaming network graphic PNG form.
The blue paper that the embodiment of the invention the provides realization system of drawing a design comprises:
Management equipment before the seal is used to treat and draws a design the page through grating images processing RIP, obtains eight compressed image file formatted datas, and exports to blue paper proofing facility;
Blue paper proofing facility is used for that eight compressed image file formatted datas of input are carried out format conversion and obtains tagged image file format TIFF data, and according to a TIFF data output specimen page that obtains.
Wherein, the lowest resolution of said blue paper proofing facility employing equipment support is carried out the output of specimen page.
Further, said blue paper proofing facility carries out the output of specimen page based on GDI GDI.
The blue paper proofing facility that the embodiment of the invention provides comprises:
Receiver module is used to receive the page of waiting to draw a design and handles eight compressed image file formatted datas that obtain behind the RIP through grating images;
Hang the net module, be used for that said eight compressed image file formatted datas are carried out format conversion and obtain tagged image file format TIFF data, and send the equipment output module to;
The equipment output module, a TIFF data output specimen page that is used for transmitting according to said extension net module.
Preferable, this indigo plant paper proofing facility also comprises:
The color correction module is used for eight compressed image file formatted datas that said receiver module receives are carried out sending to said extension net module after the color management.
Preferable, said equipment output module comprises a plurality of, and said extension net module sends said TIFF data to a plurality of equipment output modules respectively.
The blue paper that the embodiment of the invention provides draw a design implementation method, system and blue paper proofing facility; The characteristics of drawing a design to blue paper; On the basis of existing digital sample printing; With corresponding eight the compressed image file formatted datas of TIFF data as input file, and according to a TIFF data output specimen page that these eight compressed image file formatted datas is carried out obtain after the format conversion.The embodiment of the invention has thoroughly been abandoned serious RDT processing links consuming time and color correction link, draws a design on the basis of demand satisfying blue paper, has realized that quick blue paper draws a design, and has improved the blue paper efficient of drawing a design.
Other features and advantages of the present invention will be set forth in specification subsequently, and, partly from specification, become obvious, perhaps understand through embodiment of the present invention.The object of the invention can be realized through the structure that in the specification of being write, claims and accompanying drawing, is particularly pointed out and obtained with other advantages.
Description of drawings
Fig. 1 is the process chart of digital sample printing in the prior art;
Fig. 2 is the embodiment of the invention medium blue paper implementation method flow chart of drawing a design;
Fig. 3 is the embodiment of the invention medium blue paper realization system block diagram of drawing a design;
Fig. 4 is the structured flowchart of embodiment of the invention medium blue paper proofing facility.
Embodiment
The embodiment of the invention provides a kind of blue paper draw a design implementation method, system and blue paper proofing facility, draws a design in order to realize quick blue paper, improves the blue paper efficient of drawing a design.
Below in conjunction with Figure of description the preferred embodiments of the present invention are described; Be to be understood that; Preferred embodiment described herein only is used for explanation and explains the present invention; And be not used in qualification the present invention, and under the situation of not conflicting, embodiment and the characteristic among the embodiment among the present invention can make up each other.
The inventor finds, in existing digital sample printing process, from the demand of color rendition, generally selects higher image resolution ratio, makes the RDT processing links consuming time serious, causes the speed of digital sample printing slower, and efficient is lower.The RDT processing links relates to net and reduces by two processes of resolution, more than 50% of whole digital sample printing process that takies consuming time.In addition, another serious link consuming time is the equipment output element, and this is by the decision of the resolution of equipment, and the high-resolution that digital sample printing often need the support of employing equipment is to reach the color requirement to the output specimen page.
In the embodiment of the invention,, improve, realize that quick blue paper draws a design, improve the blue paper efficient of drawing a design, mainly can improve in following several respects through the logarithmic code technology of drawing a design to the different characteristics that digital sample printing and blue paper are drawn a design:
1, if possible, remove serious RDT processing links consuming time;
2, reduce the resolution of equipment, the minimizing equipment output used time of specimen page;
3, satisfying on the basic original text basis, format school, simplifying even removal color correction link.
In order to remove the RDT processing links, need, RIP generate the compressed image file formatted data of eight low image resolution when generating TIFF data.Through with corresponding eight the compressed image file formatted datas of TIFF data as input file, can be implemented in blue paper and draw a design and remove serious RDT processing links consuming time in the existing digital sample printing link in the link.In the management software, from the needs of dot matrix preview (user is in the fast browsing of client to a tiff image), eight compressed image file format-patterns exist, in fact just eight preview graph before existing seal.Based on this, be that TIFF data are different with the input file of digital sample printing, the input file that blue paper is drawn a design is i.e. eight preview graph of corresponding eight the compressed image file formatted datas of TIFF data.In essence, these eight preview graph are taken out a little by a tiff image and are obtained, and therefore can guarantee content consistency.
Wherein, Eight preview graph can adopt multiple compressed image file form; JPEG (JointPhotographers ' Experts Group for example; JPEG) form, JPEG2000 form, PNG (Portable Network Graphic Format, streaming network graphic) form, or the like.Below, introduce respectively:
Jpeg format belongs to the lossy compression method image file format, and under the condition of identical image quality, jpeg format has the compression ratio higher than other image file formats.
JPEG 2000 forms propose in order to satisfy higher image compression performance requirement, have diminish and lossless compress between favorable compatibility.
The PNG form uses lossless data compression algorithms, belongs to the lossless compress image file format.The PNG form is a kind of bitmap file (Bitmap File) storage format, and when it was used to store gray level image, the pixel of gray level image can reach 16, and when it was used for the storage color image, the pixel of coloured image can reach 48.
In the equipment output element, the key factor that influences digital sample printing speed is that the resolution of equipment is too high.Resolution is meant the quantity of the pixel that is contained in the unit are, and unit is DPI (Dots Per Inch).Image resolution ratio is meant that the per inch image contains the quantity of pixel, and the size of image resolution ratio directly influences the quality of image; Image resolution ratio is high more, and image detail is clear more, but the document size that produces is big, and the simultaneously treated time is also just long, and is also just high to the requirement of equipment.In blue paper was drawn a design process, because the image resolution ratio limited (about 100DPI) of eight preview graph, when equipment was exported, the high-resolution of employing equipment can not guarantee to have caused unnecessary waste on the contrary by the specimen page of outputting high quality.Therefore, the output of carrying out specimen page at the low resolution of equipment output element employing equipment support gets final product, and is preferable, and for minimizing equipment output used time of specimen page as far as possible, lowest resolution that can the support of employing equipment is carried out the output of specimen page.
The draw a design device type of implementation support of the blue paper that provides in the embodiment of the invention is consistent with the digital sample printing process; In order to support general PRN device; In the equipment output element, can carry out the output of specimen page based on GDI (Graphics Device Interface, GDI).Based on GDI, need not to be concerned about hardware device and device drives, just can the output of application program be converted into the output on the hardware device, realized the isolation of program developer and hardware device, greatly facilitate development.
Based on above analysis, the embodiment of the invention provides a kind of blue paper implementation method of drawing a design, and is as shown in Figure 2, comprises the steps:
S201, input eight the compressed image file formatted datas of the page of waiting to draw a design through obtaining behind the RIP;
It is pointed out that eight compressed image file formatted datas are the needs from the dot matrix preview, before existing seal, smoked by a tiff image in the management software and a little obtain, is to generating effective utilization of data, can not increasing any treatment step;
Preferable, the compressed image file form comprises jpeg format, JPEG 2000 forms or PNG form.
S202, eight compressed image file formatted datas are carried out format conversion obtain TIFF data, and according to a TIFF data output specimen page that obtains;
Through the dot-matrix analysis algorithm, can convert eight compressed image file formatted datas into eight non-compression dot array datas, then eight non-compression dot array datas that obtain are sampled and split, be decomposed into the dot array data of binaryzation, i.e. TIFF data.
Preferable, eight compressed image file formatted datas to be carried out format conversion obtain before the TIFF data, this method also comprises the steps:
These eight compressed image file formatted datas are carried out color management;
Concrete, be meant that through numerical operation methods such as calibration curves the deviation that exists between the color to the color of continuous toned image and the required image of actual print is revised.
The color correction link is the processing of on eight bit data, carrying out; Because the input file that embodiment of the invention medium blue paper is drawn a design is that the data volume of eight compressed image file formatted datas is smaller; And the time scale that the color correction link takies in the digital sample printing process is very little; Therefore the link of color correction simultaneously can keep this link guaranteeing that specimen page has certain effect qualitatively in blue paper is drawn a design process.
Preferable, according to TIFF data output specimen page obtaining the time, lowest resolution that can the support of employing equipment is exported in the embodiment of the invention; Further, can export, to support general PRN device based on GDI.
In the practical implementation, can " RIP process " and " eight compressed image file formatted datas are carried out the process that format conversion obtains TIFF data " be carried out multithreading and decompose, make full use of computer multinuclear disposal ability and improve the blue paper efficient of drawing a design.
Based on same technical conceive, the embodiment of the invention provides a kind of blue paper realization system of drawing a design, and is as shown in Figure 3, comprises management equipment 301 and blue paper proofing facility 302 before the seal, wherein:
Management equipment 301 before the seal is used to treat and draws a design the page through RIP, obtains eight compressed image file formatted datas, and exports to blue paper proofing facility 302;
Blue paper proofing facility 302 is used for that eight compressed image file formatted datas of input are carried out format conversion and obtains TIFF data, and according to a TIFF data output specimen page that obtains.
Among the embodiment, the lowest resolution of blue paper proofing facility 302 employing equipment supports is carried out the output of specimen page;
Further, blue paper proofing facility 302 carries out the output of specimen page based on GDI.
Wherein, a kind of possibility structure of blue paper proofing facility, as shown in Figure 4, comprising:
Hang net module 402, be used for these eight compressed image file formatted datas are converted to TIFF data, and send equipment output module 403 to;
Preferable, this indigo plant paper proofing facility also comprises:
In the practical implementation,, can comprise a plurality of equipment output modules in the blue paper proofing facility 302, on this basis, hang net module 402 and send TIFF data to a plurality of equipment output modules 403 respectively in order further to improve delivery efficiency.
In the embodiment of the invention; The characteristics of drawing a design to blue paper; On the basis of existing digital sample printing, with corresponding eight the compressed image file formatted datas of TIFF data as input file, and according to a TIFF data output specimen page that these eight compressed image file formatted datas is carried out obtain after the format conversion; Thereby serious RDT processing links consuming time and color correction link have thoroughly been abandoned; Draw a design on the basis of demand satisfying blue paper, realized that quick blue paper draws a design, improved the blue paper efficient of drawing a design;
In the embodiment of the invention,, further promoted the blue paper speed of drawing a design through the lowest resolution of supporting at equipment output element employing equipment;
In the embodiment of the invention, through carrying out the output of specimen page based on GDI, can support general PRN device, the versatility of lifting scheme in the equipment output element.
The another kind of blue paper implementation of drawing a design also is provided in the embodiment of the invention; Still adopt existing digital sample printing flow process, but since the RDT processing links relate to net and reduce by two processes of resolution, and the user generally the attention rate to dot shape is not high; But more color consistencies of paying close attention to more; Therefore can in the RDT processing links, use a kind of method of quick reduction resolution, can not only effectively reduce the spent time of RDT processing links, can also guarantee to export the quality of specimen page to a certain extent.
It will be understood by those skilled in the art that embodiments of the invention can be provided as method, equipment (system) or computer program.Therefore, the present invention can adopt the form of the embodiment of complete hardware embodiment, complete software implementation example or combination software and hardware aspect.And the present invention can be employed in the form that one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code go up the computer program of implementing.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (11)
1. blue paper implementation method of drawing a design is characterized in that, comprising:
Import the page of waiting to draw a design and handle eight compressed image file formatted datas that obtain behind the RIP through grating images;
Said eight compressed image file formatted datas are carried out format conversion obtain tagged image file format TIFF data, and according to a TIFF data output specimen page that obtains;
Said eight compressed image file formatted datas are carried out format conversion and are obtained tagged image file format TIFF data and specifically comprise:
Through the dot-matrix analysis algorithm; Said eight compressed image file formatted datas are converted into eight non-compression dot array datas; Said eight non-compression dot array datas are sampled again and split, be decomposed into the dot array data of binaryzation, the dot array data of said binaryzation is exactly said TIFF data.
2. the method for claim 1 is characterized in that, when exporting specimen page according to TIFF data that obtain, the lowest resolution of employing equipment support is exported.
3. method as claimed in claim 2 is characterized in that, when exporting specimen page according to TIFF data that obtain, GDI exports based on GDI.
4. like claim 1,2 or 3 described methods, it is characterized in that, said eight compressed image file formatted datas carried out format conversion obtain also comprising before the TIFF data:
Said eight compressed image file formatted datas are carried out color management.
5. the method for claim 1 is characterized in that, said compressed image file form comprises JPEG's jpeg format, JPEG 2000 forms or streaming network graphic PNG form.
6. blue paper realization system of drawing a design is characterized in that, comprising:
Management equipment before the seal is used to treat and draws a design the page through grating images processing RIP, obtains eight compressed image file formatted datas, and exports to blue paper proofing facility;
Blue paper proofing facility is used for that eight compressed image file formatted datas of input are carried out format conversion and obtains tagged image file format TIFF data, and according to a TIFF data output specimen page that obtains;
Wherein, blue paper proofing facility carries out format conversion according to following manner with said eight compressed image file formatted datas and obtains tagged image file format TIFF data:
Through the dot-matrix analysis algorithm; Said eight compressed image file formatted datas are converted into eight non-compression dot array datas; Said eight non-compression dot array datas are sampled again and split, be decomposed into the dot array data of binaryzation, the dot array data of said binaryzation is exactly said TIFF data.
7. system as claimed in claim 6 is characterized in that, the lowest resolution of said blue paper proofing facility employing equipment support is carried out the output of specimen page.
8. system as claimed in claim 7 is characterized in that, said blue paper proofing facility carries out the output of specimen page based on GDI GDI.
9. a blue paper proofing facility is characterized in that, comprising:
Receiver module is used to receive the page of waiting to draw a design and handles eight compressed image file formatted datas that obtain behind the RIP through grating images;
Hang the net module, be used for that said eight compressed image file formatted datas are carried out format conversion and obtain tagged image file format TIFF data, and send the equipment output module to;
The equipment output module, a TIFF data output specimen page that is used for transmitting according to said extension net module;
Wherein, hanging the net module carries out format conversion according to following manner with said eight compressed image file formatted datas and obtains tagged image file format TIFF data:
Through the dot-matrix analysis algorithm; Said eight compressed image file formatted datas are converted into eight non-compression dot array datas; Said eight non-compression dot array datas are sampled again and split, be decomposed into the dot array data of binaryzation, the dot array data of said binaryzation is exactly said TIFF data.
10. equipment as claimed in claim 9 is characterized in that, also comprises:
The color correction module is used for eight compressed image file formatted datas that said receiver module receives are carried out sending to said extension net module after the color management.
11., it is characterized in that said equipment output module comprises a plurality of like claim 9 or 10 described equipment, and said extension net module sends said TIFF data to a plurality of equipment output modules respectively.
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