CN101554796B - System and method for adjusting ink control information - Google Patents
System and method for adjusting ink control information Download PDFInfo
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- CN101554796B CN101554796B CN2009100988195A CN200910098819A CN101554796B CN 101554796 B CN101554796 B CN 101554796B CN 2009100988195 A CN2009100988195 A CN 2009100988195A CN 200910098819 A CN200910098819 A CN 200910098819A CN 101554796 B CN101554796 B CN 101554796B
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Abstract
The invention discloses a system and a method for adjusting ink control information. The system comprises a printing ink control information observing and controlling driver, an image color data observing and controlling unit, an image color data converting unit and an ink control information adjusting and outputting unit. The printing ink control information observing and controlling driver is used for selecting an observing and controlling target; the image color data observing and controlling unit is used for observing and controlling the image color reflection information data of an advance sheet and a printed sheet and converting the data into image RGB color data; the image color data converting unit is used for converting the image RGB color data so as to obtain ink amount control information reference data and contrast data as well as obtaining the ink control information data by contrast calculation; and the ink control information adjusting and outputting unit is used for adjusting the ink control information data and transmitting the data after being adjusted to a printer server. The system and the method for adjusting ink control information solve the problem of hard color consistency between the advance sheet and the printed sheet during printing operation and leads the color deflection existing between the advance sheet and the printed sheet to be adjusted by users, thereby obtaining objective printing image color data and leading the colors of the printed sheet and the advance sheet to maintain a more consistent state.
Description
Technical field
The present invention relates to a kind of system and method for adjusting ink control information, particularly, the invention provides a kind of ink control information of adjusting and drawing a design and printing the system and method for the match colors between the image with acquisition.The present invention handles by the final ink control information data application cycle observing and controlling that a plurality of processing that printing ink control driver is carried out obtain, to obtain the printing image color consistent with the color of drawing a design.
The data that the present invention relates to a kind of observing and controlling printing image color promptly utilize instruments such as artificial naked eyes or colour code instrument to check the color information that is obtained to solve the system and method for following problems, are subjected to the individual factor influence easily and cause the unreasonable of color data; Thereby obtain objectively printing image color data.
In addition, the present invention relates to a kind of printing image color data of adjusting to obtain the system and method for printing-ink control information.Particularly, the present invention relates to a kind of ink control information reference data, the ink control information correction data of printed sheet and system and method for printing-ink control information data that obtains specimen page by a plurality of processing to printing image 8-bit rgb color data.
In addition, the present invention relates to a kind of system and method for adjusting printing-ink control information data.Particularly, the present invention relates to a kind of by with black key China ink position equal proportionization, with the system and method for printing-ink control information data importing PPF, JDF formatted file data, thereby obtain making printing machine to control automatically.
Background technology
The control of traditional printing process color detection promptly detects the existing color difference of specimen page and printed sheet, is by artificial sampling, utilizes instruments such as artificial naked eyes or colour code instrument to detect, and rule of thumb printing process is adjusted control.But the technical staff detects regulation and control has big subjectivity, causes the control of printing process color to have many unreasonable human factors, what is more important, and the time interval uncertainty of this sampling Detection causes the difference of image color in the finished product easily.
Abroad compare early in the research starting of printing process Automatic Detection and Control technical elements, as far back as the seventies in 20th century, just there is manufacturer actively to be devoted to adopt image processing system to the visual information numberization, realize printing quality " seeing " and " cognition " by computer, to printed matter carry out at a high speed, high accuracy, 100% real-time detection, thoroughly eliminate artificial error, set up unified, quantifiable test stone.In the printed matter online measuring technique, at present mainly be the traditional densimetry of utilization, chromatmetry and based on Digital image processing technique.The CPC image control system of releasing as Heidelberg company adopts spectrophotometry technology to analyze image, it is the trial that turns to three-dimensional spectral color control by simple plane density control, with normal data relatively after, ink-covered area information is presented on the color touch screen.But, scan time needs of splitting 30 seconds owing to adopt the double check of colourity and density; It handles the information of 160,000 measurement points in the printed sheet, can't mate with the control information of China ink amount with the data that the normal data contrast obtains.A patent of invention of the U.S. (patent publication number US2002030711), utilizing ccd sensor to obtain the background returns of the preceding substrate reflectance factor of sign seal and obtain printing the back reflection coefficient signal from scintigram compares, thereby obtain the difference signal output of seal back signal and desired value, thus printing quality is divided into satisfied, dissatisfied and suspicious three classes; Though it can be adjusted suspicious generic operation, and then according to the above-mentioned signal contrast setting of adjusted feedback result correction.Can't obtain the printing-ink control information data that printing machine can read but the printing quality that its adopts is divided, can't handle the observing and controlling that circulates of printing-ink image color.
Summary of the invention
The present invention relates to a kind of system and method for adjusting ink control information, particularly, the invention provides a kind of ink control information of adjusting and drawing a design and printing the system and method for the match colors between the image with acquisition.The present invention handles by the final ink control information data application cycle observing and controlling that a plurality of processing that printing ink control driver is carried out obtain, to obtain the printing image color more consistent with the color of drawing a design.
The data that the present invention relates to a kind of observing and controlling printing image color promptly utilize instruments such as artificial naked eyes or colour code instrument to check the color information that is obtained to solve the system and method for following problems, are subjected to the individual factor influence easily and cause the unreasonable of color data; Thereby obtain objectively printing image color data.
In addition, the present invention relates to a kind of printing image color data of adjusting to obtain the system and method for printing-ink control information.Particularly, the present invention relates to a kind of ink control information reference data, the ink control information correction data of printed sheet and system and method for printing-ink control information data that obtains specimen page by a plurality of processing to printing image 8-bit rgb color data.
In addition, the present invention relates to a kind of system and method for adjusting printing-ink control information data.Particularly, the present invention relates to a kind of by with black key China ink position equal proportionization, with the system and method for printing-ink control information data importing PPF, JDF formatted file data, thereby obtain making printing machine to control automatically.
Technical scheme of the present invention is achieved in that
A kind of system that adjusts ink control information, this system comprises:
Printing-ink control information observing and controlling driver is used for the selection of observing and controlling object, and the observing and controlling order is sent to image color data measurement and control unit;
Image color data measurement and control unit is used for the image color reflective information data of observing and controlling specimen page and printed sheet and is converted to image rgb color data, again image rgb color data is transmitted the image color Date Conversion Unit;
The image color Date Conversion Unit, be used for the image rgb color data transaction of specimen page, printed sheet is measured control information reference data, China ink amount control information correction data to obtain China ink, and by above-mentioned reference data and correction data are compared calculating to obtain color error ratio percentage coefficient, i.e. ink control information data;
Ink control information is adjusted and output unit, the ink control information data is adjusted, and sent adjusted data to the printing machine server.
As preferably, described printing-ink control information observing and controlling driver comprises:
Rgb color data observing and controlling Object Selection device is used to select the object of the observing and controlling of wanting;
Interface unit is used for carrying out transfer of data with described image color data measurement and control unit.
As preferably, described image color data measurement and control unit comprises:
Ccd sensor is used to obtain the color optical reflective information of described specimen page and printed sheet image, and to adjust optical reflective information be specimen page and printed sheet image color digital information;
Image acquisition device is used to adjust described specimen page and printed sheet image color digital information and obtains 8-bit RGB image three-colo(u)r color data;
Video memory is used to store described 8-bit RGB image three-colo(u)r color data;
Interface unit is used for carrying out transfer of data with described printing-ink control information observing and controlling driver, image color Date Conversion Unit.
As preferably, described image color Date Conversion Unit comprises:
Interface unit is used for obtaining the 8-bit RGB image three-colo(u)r color data that image color data measurement and control unit is stored;
RIP divides color element: be used for obtaining 8-bit CMYK four-color image color data by change the described 8-bit RGB image three-colo(u)r color data that above-mentioned interface unit obtains based on universal performance color look-up table LUT, and change described 8-bit CMYK four-color image color data by rasterization process and obtain C, M, the monochromatic one-bittiff image color of Y, K data;
The ink-covered area data are adjusted and input block, adjust and input ink-covered area data, and described ink-covered area data comprise ink-covered area number and ink-covered area width;
Computing unit, obtain the ink-covered area data and use the ink-covered area data that C, M, the monochromatic one-bit tiff of Y, K image color data partition are calculated, obtain monochromatic subregion color depth percentage data, be each monochrome ink control information reference data of specimen page and each monochrome ink control information correction data of printed sheet, by reference data, correction data being carried out difference, ratio calculating acquisition each monochromatic subregion color error ratio proportionality coefficient, i.e. ink control information data.
Memory cell, ink control information reference data, ink control information correction data and ink control information data that the computing of storage computing unit obtains.
Display unit is used to the ink control information reference data, ink control information correction data, ink control information data and the ink-covered area data that show that the computing unit computing obtains.
As preferably, described RIP divides color element to comprise:
Interface unit is used to obtain 8-bit RGB image three-colo(u)r color data;
The CMM module is by obtaining 8-bit CMYK four-color image color data based on complete performance * .ICC file with the conversion of 8-bit RGB image three-colo(u)r color data;
Grating-based processor is used to change described 8-bit CMYK four-color image color data and obtains C, M, the monochromatic one-bit tiff of Y, K image color data;
Transmission unit sends C, M, the monochromatic one-bit tiff of Y, the K image color data that obtain to computing unit.
As preferably, described computing unit comprises:
Interface unit is used to obtain C, M, the monochromatic one-bit tiff image color data of Y, K and ink-covered area data;
The dark calculator in position calculates acquisition ink control information reference data and ink control information correction data by subregion and shared total depth ratio;
Deviation ratio coefficient calculator is calculated difference between China ink amount control information reference data and the China ink amount control information correction data, obtains the ink control information data.
As preferably, described ink control information adjustment and output unit comprise:
Interface unit is used to obtain the ink control information data of cell stores.
Display unit is used to show the ink control information data of described acquisition;
China ink amount control information data adjustment unit is adjusted the ink control information data that described display unit shows;
Format conversion unit is used for by black key China ink position equal proportion conversion ink control information data and data importing JDF, PPF data after will changing generate new JDF, PPF data;
Output unit sends described new JDF, PPF data to the printing machine server.
As preferably, described format conversion unit comprises:
Interface unit in order to obtaining each monochromatic subregion color error ratio proportionality coefficient data, and obtains former PPF, JDF file data from the printing machine server;
Format converter by the equal proportion conversion of ink control information data and black key China ink position, obtains PPF, JDF China ink position information format data, and new PPF or JDF file data that data importing is generated.
A kind of method of adjusting ink control information includes following steps:
The user selects the observing and controlling object in printing-ink control information observing and controlling driver, drive image color data measurement and control unit observing and controlling specimen page, printed sheet color to obtain the 8-bit RGB image three-colo(u)r color data of specimen page, printed sheet; By a plurality of treatment conversion of view data color data converting unit to 8-bit RGB image three-colo(u)r color data, so as with PPF, JDF file in printing-ink control information Data Matching; By black key China ink position equal proportionization with ink control information data importing PPF, JDF formatted file.
As preferably, the image color Date Conversion Unit is by based on complete performance * .ICC file conversion 8-bit RGB image three-colo(u)r color data, so as with the printing color Data Matching; It shows the ink-covered area data by display unit; By artificial adjustment and input ink-covered area data; By the ink-covered area data 8-bit CMYK image color data are carried out subregion; By the calculating pixel color depth with account for subregion total depth ratio and obtain ink control information reference data, ink control information correction data; By reference data and correction data are carried out difference calculating acquisition ink control information data; Show C, M, the monochromatic one-bit tiff image color data of Y, K and ink control information data by display unit; Storage C, M, the monochromatic one-bit tiff image color data of Y, K and ink control information data are so that other unit and user call.
The advantage that has adopted the present invention of technique scheme to have is:
1, the invention solves instruments such as when presswork, utilizing artificial naked eyes or colour code instrument and check the color information that is obtained, be subjected to irrational problem that the individual factor influence causes color data easily, make the color error ratio that exists between specimen page and the printed sheet to regulate by the user, thereby obtain objectively printing image color data, make printed sheet keep more consistent state with the specimen page color;
2, image color data measurement and control unit of the present invention uses matrix CCD, and fully whole specimen page of observing and controlling or printed sheet breadth color data help obtaining more comprehensively data, and can the more different object of observing and controlling; An observing and controlling time only needs 5 seconds, can increase work efficiency by a relatively large margin.
3, the present invention uses ccd sensor to obtain the image color data, and the data that obtain by complete performance (* .ICC) file conversion, the data that obtain are relative color depth, help reducing absolute error by relative color depth contrast, and use ccd sensor to obtain the image color data and can on hardware, reduce cost.
4, printing-ink control adjust and output unit in, the user can manually adjust as required, the removal ink roller put that black process brings hysteresis error, will send to the printing machine server after the data transaction again, thereby adjust the printed sheet color faster; Also can be by directly data being converted to needed data and sending to the printing machine server.
5, the present invention can obtain initial JDP or PPF data by blank testing printed sheet return data, and uses these data and put China ink, has the prospect of replaced C IP3 and CIP4 printing machine server.
Description of drawings
Fig. 1 is a system architecture diagram of the present invention;
Fig. 2 is the flow chart according to the method for the adjustment ink control information of the embodiment of the invention;
Fig. 3 is the data flowchart according to the adjustment ink control information of the embodiment of the invention;
Fig. 4 is for using the exemplary plot of an instantiation of the present invention.
The specific embodiment
The specific embodiment of the present invention is as follows:
Embodiment: as shown in Figure 1, a kind of system that adjusts ink control information, this system comprises: printing-ink control information observing and controlling driver S10 is used for the selection of observing and controlling object, and the observing and controlling order is sent to image color data measurement and control unit S20; Image color data measurement and control unit S20 is used for the image color reflective information data of observing and controlling specimen page and printed sheet and is converted to image rgb color data, image rgb color data is transmitted image color Date Conversion Unit S30 again; View data color data converting unit S30, be used for the image rgb color data transaction of specimen page, printed sheet to obtain ink control information reference data, ink control information correction data, and by above-mentioned reference data and correction data are compared calculating to obtain color error ratio percentage coefficient, i.e. ink control information data; Ink control information is adjusted and output unit S40, the ink control information data is adjusted, and sent adjusted data to the printing machine server.
Described printing-ink control information observing and controlling driver S10 comprises: rgb color data observing and controlling Object Selection device S101 is used to select the object of the observing and controlling of wanting; Interface unit S103 is used for carrying out transfer of data with described image color data measurement and control unit S20.
Described image color data measurement and control unit S20 comprises: ccd sensor S201 be used to obtain the color optical reflective information of described specimen page and printed sheet image, and to adjust optical reflective information is specimen page and printed sheet image color digital information; Described ccd sensor is an area array sensor, is used for once obtaining bulk sample and opens breadth image color information; Described specimen page and printed sheet can be printed sheet, the press printing printed sheets that digital-code printer is printed, and also can comprise other colorful picture proofs.Image acquisition device S202 can be image pick-up cards such as MV-600 high accuracy industrial picture capture card, is used to adjust described specimen page and printed sheet image color digital information and obtains 8-bit RGB image three-colo(u)r color data; Video memory S204, normally computer disc driver is used to store described 8-bit RGB image three-colo(u)r color data; Interface unit S206 is used for carrying out transfer of data with described printing-ink control information observing and controlling driver S10, image color Date Conversion Unit S30.
Described image color Date Conversion Unit S30 comprises:
Interface unit S301 is used for obtaining the 8-bit RGB image three-colo(u)r color data that image color data measurement and control unit is stored;
RIP color separation cell S 303, be used for deceiving CMYK four-color image color data with the blue or green product reddish yellow of acquisition 8-bit, and change the black CMYK four-color image color data acquisition of the blue or green product reddish yellow of described 8-bit C, M, the monochromatic one-bit tiff of Y, K image color data by rasterization process by the described 8-bit RGB image three-colo(u)r color data that obtains based on the above-mentioned interface unit S301 of complete performance * .ICC file conversion; Described RIP color separation cell S 303 can comprise: interface unit S3031 is used to obtain 8-bit RGB image three-colo(u)r color data; CMM module S3032, i.e. color management module is by obtaining 8-bit CMYK four-color image color data based on universal performance color look-up table LUT with the conversion of 8-bit RGB image three-colo(u)r color data; Grating-based processor S3033 is used to change described 8-bit CMYK four-color image color data and obtains C, M, the monochromatic one-bit tiff of Y, K image color data; Transmission unit S3034 sends C, M, the monochromatic one-bit tiff of Y, the K image color data that obtain to computing unit.
The ink-covered area data are adjusted and input block S305, adjust and input ink-covered area data.The ink-covered area data comprise ink-covered area number and these two parameters of ink-covered area width, and purpose is to be used for computing unit C, M, the monochromatic one-bit tiff of Y, K image color data are carried out subregion calculating, and last and different printing machine ink-covered area is complementary.
Computing unit S307, obtain the ink-covered area data and use the ink-covered area data that C, M, the monochromatic one-bit tiff of Y, K image color data partition are calculated, obtain monochromatic subregion color depth percentage data, be each monochrome ink control information reference data of specimen page and each monochrome ink control information correction data of printed sheet, by reference data, correction data being carried out difference, ratio calculating acquisition each monochromatic subregion color error ratio proportionality coefficient, i.e. ink control information data.Described computing unit S307 can comprise: interface unit S3071 is used to obtain C, M, the monochromatic one-bit tiff image color data of Y, K and ink-covered area data; The dark calculator S3072 in position calculates acquisition ink control information reference data and ink control information correction data by subregion and shared total depth ratio; Deviation ratio coefficient calculator S3073 calculates difference between China ink amount control information reference data and the China ink amount control information correction data, obtains the ink control information data.
Memory cell S309, the ink control information reference data that the computing of storage computing unit obtains, black gauging China ink control information correction data and ink control information data.
Display unit S311, normally computer display is used to the ink control information reference data, ink control information correction data, ink control information data and the ink-covered area data that show that computing unit S307 computing obtains.
Described ink control information adjustment and output unit S40 comprise: interface unit S401 is used to obtain the ink control information data of memory cell S309 storage; Display unit S407 is used to show the ink control information data of described acquisition; Ink control information data adjustment unit S403 adjusts the ink control information data that described display unit S407 shows; Format conversion unit S405 is used for by black key China ink position equal proportion conversion ink control information data and data importing JDF, PPF data after will changing generate new JDF, PPF data; Described format conversion unit comprises: interface unit S4051, do not adjust or adjusted each monochromatic subregion color error ratio proportionality coefficient data in order to obtain, and obtain former PPF, JDF file data from the printing machine server; Format converter S4052 is used for obtaining PPF, JDF China ink position information format data by equal proportion conversion ink control information data, and new PPF or JDF file data that data importing is generated.Output unit S409 sends described new JDF, PPF data to the printing machine server.
CIP3 is the all-purpose language in the workflow, it is a data building standard describing the operation control data, the print format of its appointment is PPF, and message comprises some managerial datas, as work title, client, creator, application software, date, time and Hou time limit etc.; Also have creation data such as separations preview image, bookbinding and process data such as cut paper and folding program etc., it is default that separations preview image wherein can be used for carrying out printing ink, replace the separations preview image section of creation data wherein behind the former PPF file of data importing that we obtain observing and controlling, regulate China ink position effect thereby reach.
Equally, the print production format of CIP4 appointment is JDF, and JDF is the living-article descriptor format, is a kind of open file format that is used for the description and the exchange of living-article based on XML (but extension flag language).All information that the JDF file is comprised: comprise that color management description, mending-leakage before the seal is white, piece together big version, numeral is drawn a design information; The control of quantity of ink in the printing, quality of colour control, alignment control, alignment control parameter; And cutting, folding and bookbinding information behind the seal.What we mainly used is the control data part of quantity of ink wherein; Replace control, the quality of colour control data part of quantity of ink in the printing of creation data wherein behind the former JDF file of data importing that we obtain observing and controlling, thereby reach the effect of regulating the China ink position.
With reference to Fig. 2, Fig. 3 and Fig. 4 a kind of method of adjusting ink control information of the present invention is summarized in detail below, Fig. 4 is the example of an application of the present invention, and it has shown the interface of ink control information adjustment main program.
Start application program, be that ink control information is adjusted main program, execution in step S102, in rgb color data observing and controlling Object Selection device S101, select required observing and controlling object, promptly select specimen page or printed sheet, user's button click B103 selects the observing and controlling specimen page, and order is sent to image color data measurement and control unit S20 by interface unit S103; Execution in step S203, among the image color data measurement and control unit S20, after interface unit S206 took orders, driven CCD sensor S201 scanned specimen page, the image color optical reflective information data that obtained is passed to image acquisition device S202 conversion obtain 8-bit RGB image three-colo(u)r color data D301; Carry out step S205,8-bit RGB image three-colo(u)r color data is stored among the video memory S204.
In the RGB data conversion treatment cell S 30, execution in step S302, interface unit S301 obtain 8-bit RGB image three-colo(u)r color data D301 among the video memory S204, and data are sent to RIP color separation cell S 303; Execution in step S304, in the RIP color separation cell S 303, interface unit S3031 obtains 8-bit RGB image three-colo(u)r color data D301, and sends data to CMM module S3032; CMM module S3032 is converted to 8-bit CMYK four-color image color data by complete performance * .ICC file with 8-bit RGB image three-colo(u)r color data D301, and grating-based processor S3033 obtains C, M, the monochromatic one-bit tiff of Y, K image color data D304 by rasterization process with the conversion of image 8-bit CMYK four-color image color data; Transmission unit S3034 sends C, M, the monochromatic one-bit tiff of Y, the K image color data D304 that obtains to computing unit S307.Following execution in step S306, user adjust in B101 and B102 or import ink-covered area number and ink-covered area width, promptly adjust the ink-covered area data D305 of printing machine correspondence.Carry out step S3081, S3082, promptly in computing unit S307, interface unit S3071 obtains ink-covered area data D305 and C, M, the monochromatic one-bit tiff of Y, K image color data D304, and is sent to the dark calculator S3072 in position; The dark calculator S3072 in position uses ink-covered area data D305 and calculates the cmyk data subregion, and accounts for the total depth ratio by the summation of the subregion degree of depth and calculate, and its computing formula is:
As D
1The color-ratio of promptly representing first ink-covered area, X in the formula
iBe pixel depth, a is the image horizontal pixel number, and b is the vertical pixel count of image, and c is the numerical value of ink-covered area number; X wherein
i, a, b belong to the monochromatic one-bittiff image color of C, M, Y, K data D304, c belongs to ink-covered area data D305, D
nThe ink control information reference data D3071 that belongs to specimen page, n from 1 to c; Utilize this formula to calculate, obtain the ink control information reference data D3071 of specimen page; Display unit S407 shows ink control information reference data D3071.
User's button click B103 selects the observing and controlling printed sheet, and order is sent to image color data measurement and control unit S20 by interface unit S103; Execution in step S203, among the image color data measurement and control unit S20, after interface unit S206 took orders, driven CCD sensor S201 scanned specimen page, the image color optical reflective information data that obtained is passed to image acquisition device S202 conversion obtain 8-bit RGB image three-colo(u)r color data D301; Carry out step S205,8-bit RGB image three-colo(u)r color data is stored among the video memory S204.
In the RGB data conversion treatment cell S 30, execution in step S302, interface unit S301 obtain 8-bit RGB image three-colo(u)r color data D301 among the video memory S204, and data are sent to RIP color separation cell S 303; Execution in step S304, in the RIP color separation cell S 303, interface unit S3031 obtains 8-bit RGB image three-colo(u)r color data D301, and sends data to CMM module S3032; CMM module S3032 is converted to 8-bit CMYK four-color image color data by complete performance (* .ICC) file with 8-bit RGB image three-colo(u)r color data D301, and grating-based processor S3033 obtains C, M, the monochromatic one-bit tiff of Y, K image color data D304 by rasterization process with the conversion of image 8-bit CMYK four-color image color data; Transmission unit S3034 sends C, M, the monochromatic one-bit tiff of Y, the K image color data D304 that obtains to computing unit S307.Following execution in step S306, user adjust in B101 and B102 or import ink-covered area number and ink-covered area width, promptly adjust the ink-covered area data D305 of printing machine correspondence.Carry out step S3081, S3082, promptly in computing unit S307, interface unit S3071 obtains ink-covered area data D305 and C, M, the monochromatic one-bit tiff of Y, K image color data D304, and is sent to the dark calculator S3072 in position; The dark calculator S3072 in position uses ink-covered area data D305 and calculates the cmyk data subregion, and accounts for the total depth ratio by the summation of the subregion degree of depth and calculate, and its computing formula is:
As D
1The color-ratio of promptly representing first ink-covered area, X in the formula
iBe pixel depth, a is the image horizontal pixel number, and b is the vertical pixel count of image, and c is the numerical value of ink-covered area number, wherein X
i, a, b belong to the monochromatic one-bittiff image color of C, M, Y, K data D304, c belongs to ink-covered area numeric data D305, D
nThe ink control information reference data D3071 that belongs to specimen page, n from 1 to c; Utilize this formula to calculate, obtain the ink control information correction data D3072 of specimen page; Display unit S407 shows ink control information correction data D3072.
The user clicks the B105 button, execution in step S3083, deviation ratio coefficient calculator S3073 calculates each monochromatic subregion color error ratio proportionality coefficient D309 of acquisition to ink control information reference data D3071 and ink control information correction data D3072 difference, be the ink control information data, its computing formula is:
Carry out step S310, memory cell S309 stores each monochromatic subregion color error ratio proportionality coefficient D309; Carry out step S312, display unit S407 shows each monochromatic subregion color error ratio proportionality coefficient D309, and user's button click B106 can check different separation ink control information reference data D3071, ink control information correction data D3072 and each monochromatic subregion color error ratio proportionality coefficient D309.Carry out step S402, promptly in adjustment of ink control information data and output unit S40, interface unit S401 obtains each monochromatic subregion color error ratio proportionality coefficient D309, judge whether to adjust by the user, promptly adjust the black bit depth of each ink-covered area, if, execution in step S404 then, in B108, adjust the ink control information data by the user, be that the user adjusts each monochromatic subregion color error ratio proportionality coefficient D309 in ink control information data adjustment unit S403, regain adjusted each monochromatic subregion color error ratio proportionality coefficient data, turn back to step S312; If not, user's button click B109, execution in step S406 then, among the format conversion unit S405, interface unit S4051 does not adjust or adjusted each monochromatic subregion color error ratio proportionality coefficient data, and obtains former PPF, JDF file data from the printing machine server; Format converter S4052 by the equal proportion conversion of ink control information data and black key China ink position, obtains PPF, JDF China ink position information format data, and new PPF or JDF file data that data importing is generated; New PPF or JDF file data that execution in step S408, output unit S407 will generate send the printing machine server to, and printing machine obtains new PPF or JDF file data from the printing machine server, adjust black key China ink bit value, thereby adjust the printing color of image; Still there is deviation if find the color of image and the specimen page of printed sheet, then can readjusts ink control information, realize circulating and adjust, finally obtain to make the satisfied and more consistent printing color of specimen page of user.
Claims (10)
1. system that adjusts ink control information, this system comprises:
Printing-ink control information observing and controlling driver is used for the selection of observing and controlling object, and the observing and controlling order is sent to image color data measurement and control unit;
Image color data measurement and control unit is used for the image color reflective information data of observing and controlling specimen page and printed sheet and is converted to image rgb color data, sends image rgb color data to the image color Date Conversion Unit again;
The image color Date Conversion Unit, be used for the image rgb color data transaction of specimen page, printed sheet to obtain ink control information reference data, ink control information correction data, and by above-mentioned reference data and correction data are compared calculating to obtain color error ratio percentage coefficient, i.e. ink control information data;
Ink control information is adjusted and output unit, the ink control information data is adjusted, and sent adjusted data to the printing machine server.
2. a kind of system that adjusts ink control information according to claim 1 is characterized in that: described printing-ink control information observing and controlling driver comprises:
Rgb color data observing and controlling Object Selection device is used to select the object of the observing and controlling of wanting;
Interface unit is used for carrying out transfer of data with described image color data measurement and control unit.
3. a kind of system that adjusts ink control information according to claim 1 is characterized in that: described image color data measurement and control unit comprises:
Ccd sensor is used to obtain the color optical reflective information of described specimen page and printed sheet image, and to adjust optical reflective information be specimen page and printed sheet image color digital information;
Image acquisition device is used to adjust described specimen page and printed sheet image color digital information and obtains 8-bit RGB image three-colo(u)r color data;
Video memory is used to store described 8-bit RGB image three-colo(u)r color data;
Interface unit is used for carrying out transfer of data with described printing-ink control information observing and controlling driver, image color Date Conversion Unit.
4. a kind of system that adjusts ink control information according to claim 1 is characterized in that: described image color Date Conversion Unit comprises:
Interface unit is used for obtaining the 8-bit RGB image three-colo(u)r color data that image color data measurement and control unit is stored;
RIP divides color element, be used for obtaining 8-bit CMYK four-color image color data, and change the described acquisition of 8-bit CMYK four-color image color data C, M, the monochromatic one-bittiff image color of Y, K data by rasterization process by the described 8-bit RGB image three-colo(u)r color data that obtains based on the above-mentioned interface unit of complete performance * .ICC file conversion;
The ink-covered area data are adjusted and input block, adjust and input ink-covered area data, and described ink-covered area data comprise ink-covered area number and ink-covered area width;
Computing unit, obtain the ink-covered area data and use the ink-covered area data that C, M, the monochromatic one-bit tiff of Y, K image color data partition are calculated, obtain monochromatic subregion color depth percentage data, be each monochrome ink control information reference data of specimen page and each monochrome ink control information correction data of printed sheet, by reference data, correction data being carried out difference, ratio calculating acquisition each monochromatic subregion color error ratio proportionality coefficient, i.e. ink control information data;
Memory cell, ink control information reference data, ink control information correction data and ink control information data that the computing of storage computing unit obtains;
Display unit is used to the ink control information reference data, ink control information correction data, ink control information data and the ink-covered area data that show that the computing unit computing obtains.
5. a kind of system that adjusts ink control information according to claim 4, it is characterized in that: described RIP divides color element to comprise:
Interface unit is used to obtain 8-bit RGB image three-colo(u)r color data;
The CMM module is by obtaining 8-bit CMYK four-color image color data based on universal performance color look-up table LUT with the conversion of 8-bit RGB image three-colo(u)r color data;
Grating-based processor is used to change described 8-bit CMYK four-color image color data and obtains C, M, the monochromatic one-bit tiff of Y, K image color data;
Transmission unit sends C, M, the monochromatic one-bit tiff of Y, the K image color data that obtain to computing unit.
6. a kind of system that adjusts ink control information according to claim 4, it is characterized in that: described computing unit comprises:
Interface unit is used to obtain C, M, the monochromatic one-bit tiff image color data of Y, K and ink-covered area data;
The dark calculator in position calculates acquisition ink control information reference data and ink control information correction data by subregion and shared total depth ratio;
Deviation ratio coefficient calculator is calculated difference between ink control information reference data and the ink control information correction data, obtains the ink control information data.
7. a kind of system that adjusts ink control information according to claim 1 is characterized in that: described ink control information adjustment and output unit comprise:
Interface unit is used to obtain the ink control information data of cell stores;
Display unit is used to show the ink control information data of described acquisition;
Ink control information data adjustment unit is adjusted the ink control information data that described display unit shows;
Format conversion unit is used for by black key China ink position equal proportion conversion ink control information data and data importing JDF, PPF data after will changing generate new JDF, PPF data;
Output unit sends described new JDF, PPF data to the printing machine server.
8. a kind of system that adjusts ink control information according to claim 7, it is characterized in that: described format conversion unit comprises:
Interface unit is used to obtain each monochromatic subregion color error ratio proportionality coefficient data, and obtains former PPF, JDF file data from the printing machine server;
Format converter by the equal proportion conversion of ink control information data and black key China ink position, obtains PPF, JDF China ink position information format data, and new PPF or JDF file data that data importing is generated.
9. method of adjusting ink control information, it is characterized in that including following steps: the user selects the observing and controlling object in printing-ink control information observing and controlling driver, drives image color data measurement and control unit observing and controlling specimen page, printed sheet color to obtain the 8-bit RGB image three-colo(u)r color data of specimen page, printed sheet; By a plurality of treatment conversion of view data color data converting unit to 8-bit RGB image three-colo(u)r color data, so as with PPF, JDF file in printing-ink control information Data Matching; By black key China ink position equal proportionization with ink control information data importing PPF, JDF formatted file.
10. a kind of method of adjusting ink control information according to claim 9, it is characterized in that: view data color data converting unit is by based on complete performance * .ICC file conversion 8-bit RGB image three-colo(u)r color data, so as with the printing color Data Matching; It shows the ink-covered area data by display unit; By artificial adjustment and input ink-covered area data; By the ink-covered area data 8-bit CMYK four-color image color data is carried out subregion; By the calculating pixel color depth with account for subregion total depth ratio and obtain ink control information reference data, ink control information correction data; By reference data and correction data are carried out difference calculating acquisition ink control information data; Show C, M, the monochromatic one-bit tiff image color data of Y, K and ink control information data by display unit; Storage C, M, the monochromatic one-bit tiff image color data of Y, K and ink control information data are so that other unit and user call.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107402732A (en) * | 2016-05-20 | 2017-11-28 | 海德堡印刷机械股份公司 | Method for monitoring the shading criteria in printing machine |
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| CN102991122B (en) * | 2012-11-20 | 2016-06-22 | 北京华夏视科图像技术有限公司 | Mass colour controls system and control method thereof |
| CN104608489B (en) * | 2013-11-01 | 2017-06-06 | 北京大学 | Printing-ink control device and printing-ink control method |
| CN106576131A (en) * | 2014-04-02 | 2017-04-19 | 艾尔代知识产权有限责任公司 | Color management |
| CN104369556A (en) * | 2014-09-26 | 2015-02-25 | 合肥海闻自动化设备有限公司 | Printing information collecting control system for ribbon printer |
| CN104669770B (en) * | 2015-02-05 | 2017-08-22 | 深圳市力嘉创意文化产业发展有限公司 | A kind of method and system of the quantitative ink supply of offset press |
| CN107650508B (en) * | 2017-08-19 | 2019-06-28 | 北京印刷学院 | A kind of machine vision method of offset printing process control |
| CN110779626B (en) * | 2019-09-29 | 2021-07-09 | 江苏学泰印务有限公司 | Low-consumption material-consumption spot color sampling equipment and working method thereof |
| CN111027891A (en) * | 2019-12-26 | 2020-04-17 | 雅昌文化(集团)有限公司 | Printing raw and auxiliary material quality control method |
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| CN112233192A (en) * | 2020-09-25 | 2021-01-15 | 北京华夏视科技术股份有限公司 | Electronic signature method and system for printed matter |
| CN115122794B (en) * | 2021-03-25 | 2023-08-18 | 当纳利(成都)印刷有限公司 | Color management matching method, device and storage medium for exchanging halogen-free ink printing and halogen-free ink printing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107402732A (en) * | 2016-05-20 | 2017-11-28 | 海德堡印刷机械股份公司 | Method for monitoring the shading criteria in printing machine |
| CN107402732B (en) * | 2016-05-20 | 2022-04-08 | 海德堡印刷机械股份公司 | Method for monitoring a colour standard for a machine for processing printing material by a computer |
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