CN103373098B - The printing process of color compensation and device - Google Patents
The printing process of color compensation and device Download PDFInfo
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- CN103373098B CN103373098B CN201210132182.9A CN201210132182A CN103373098B CN 103373098 B CN103373098 B CN 103373098B CN 201210132182 A CN201210132182 A CN 201210132182A CN 103373098 B CN103373098 B CN 103373098B
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Abstract
The invention provides printing process and the device of a kind of color compensation, method includes: be presented on display by the reference color lump with true color value；Reference color lump on described display is measured and obtains measuring chromatic value；With the deviation compensation operation to be printed to described true color value of the described measurement chromatic value.The invention provides the printing equipment of a kind of color compensation, including: display module, for the reference color lump with true color value is presented to display；Measurement module, obtains measuring chromatic value for measuring the reference color lump on described display；Compensating module, for the deviation compensation operation to be printed to described true color value of the described measurement chromatic value.Use operation to be printed Chromatically compensated, eliminated owing to display shows that there is aberration causes the poor problem of printing effect, is effectively increased printing effect.
Description
Technical field
The present invention relates to print field, in particular to printing process and the device of a kind of color compensation.
Background technology
Before digital printing, see that the sample that display is shown by sample personnel compares with printing sample, the most consistent with printing effect at the color effects seen in image processing software with judgement sample.
If consistent, then can print；If inconsistent, in the case of the color of sample is arranged correctly, the reason being likely to be due to display causes aberration, for this situation, generally corrects display, rejudges and whether there is aberration, then print.
This mode of printing, owing to display is electronic product, uses after certain time, it may appear that the aging color distortion caused, even if correcting, also can there is aberration, thus cause drawing a design result and print result deviation relatively big, ultimately result in printing effect poor.
Summary of the invention
It is desirable to provide the printing process of a kind of color compensation and device, above-mentioned owing to there is aberration to solve, cause drawing a design result and the big problem of print result deviation.
In an embodiment of the present invention, it is provided that the printing process of a kind of color compensation, including:
The reference color lump with true color value is presented on display；Reference color lump on described display is measured and obtains measuring chromatic value；With the deviation compensation operation to be printed to described true color value of the described measurement chromatic value.
In an embodiment of the present invention, it is provided that the printing equipment of a kind of color compensation, including: display module, for the reference color lump with true color value is presented to display；Measurement module, obtains measuring chromatic value for measuring the reference color lump on described display；Compensating module, for the deviation compensation operation to be printed to described true color value of the described measurement chromatic value.
By embodiment, use operation to be printed Chromatically compensated, eliminated owing to display shows that there is aberration causes drawing a design the result problem big with print result color error ratio, is effectively increased printing effect.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the flow chart of embodiment；
Fig. 2 shows in embodiment and calculates aberration the flow chart compensated according to colour difference formula；
Fig. 3 shows the apparatus structure block diagram in embodiment.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, the present invention is described in detail.See Fig. 1, comprise the following steps:
S11: the reference color lump with true color value is presented on display；
S12: the reference color lump on described display is measured and obtains measuring chromatic value；
S13: with the deviation compensation operation to be printed to described true color value of the described measurement chromatic value.
By above-mentioned steps, use operation to be printed Chromatically compensated, eliminated owing to display shows that there is aberration causes drawing a design the result problem big with print result color error ratio, is effectively increased printing effect.
Embodiment shown in Figure 2 calculates aberration the flow chart compensated according to colour difference formula, comprises the following steps:
S21: image processing software parameter is set；
Soft proofing equipment starts image processing software, such as PhotoShop software, and relevant parameter is set includes: work space is arranged and action is arranged.Arrange the printing parameter of ICC of correspondence in work space, action arranges the motion file that middle loading makes in advance.Wherein, printing ICC and motion file mainly realize subsequent reference color lump and change into Lab pattern based on the printing ICC specified.Soft proofing equipment is computer equipment, has and is applicable to print the display performance required of drawing a design.
Wherein, the setting (comprising RGB, CMYK, gray scale and spot color) of one group of ICC file that work space setting uses when being PhotoShop software processes image file.PhotoShop uses these ICC files that the color value in image file is converted on display the RGB color value of display.
It is a series of images operational order and the sequence of parameter prerecorded by user in PhotoShop that action is arranged, for one group of image manipulation of execution in order of automatization.External program can perform an action by the interface interchange that PhotoShop provides, and completes a certain function.The action recorded can export to file and preserve.Action arranges and refers to the motion file prerecorded and derive is loaded into PhotoShop to call.
In embodiment, need to call the motion file prerecorded and complete reference color block file to become from cmyk color patten transformation the operation of Lab color mode.
ICC file is color characteristic file, is used for changing between color value and the color value of output of input.
After starting PhotoShop software, edit menu is opened color dialog box is set, the CMYK in work space is loaded into printing ICC file.
Opening action dialog box in the window menu of PhotoShop software, is loaded into the motion file made in advance.It operation including reference color block file being become Lab color mode from cmyk color patten transformation.
Measurement equipment is received on current computer, clicks on the white button in school, white so that measurement equipment is carried out school.
Preferably, EyeOnePro equipment is selected to perform measurement.
S22: recall and there is true color value show over the display with reference to color lump；
After school completes in vain, click on and measure button, according to system prompt, measurement equipment is suspended on above the display of Soft proofing equipment, drive PhotoShop software to open the most built-in reference color block file, and show in the display.The reference color lump of display and measurement equipment on display are carried out position alignment.
S23: the chromatic value of the reference color lump on measurement display；
Drive measurement equipment that the light issued with reference to color lump in display is measured, obtain and preserve current reference color lump measurement chromatic value over the display.
S24: color lump patten transformation also preserves；
Call the action of loading, carry out color mode conversion according to printing ICC set in PhotoShop, reference the color lump of former CMYK pattern will transfer Lab pattern to, and the reference color lump after changing saves as temporary file；
Being Lab color mode owing to measuring the color value measured of equipment EyeOnePro, each color value comprises three components, and reference the color lump of CMYK pattern, each color value comprises 4 components, it is necessary to be also converted into Lab pattern, could use colour difference formula calculating aberration.
S25: obtain the process color angle value with reference to color lump；
Read temporary file, then obtain and preserve the Lab value of this document, i.e. process color angle value, in this application, also referred to as true color value.
S26: whether exist with reference to color lump；
If there is next with reference to color lump, then perform S22；If it does not exist, then perform S27；Until measuring all measurements by all with reference to color lump.
S27: calculate deviation and compensate operation to be printed.
By all true color values (also referred to as process color angle value) measuring chromatic value and reference color lump with reference to color lump measured, calculate deviation by colour difference formula；And calculate these with reference to the maximum of deviation of color lump, minima, meansigma methods etc..
By performing printing operation after the deviation compensation operation to be printed that calculates.
Preferably, the colour difference formula calculating deviation includes: CIE76 colour difference formula, CIE94 colour difference formula, CIE2000 colour difference formula, CMC colour difference formula.
Using true color value and measure chromatic value as input parameter, by above-mentioned color formula export, deviation can be obtained.
Such as: a true color in reference color lump is L=62, a=-45, b=-50, and display is on Soft proofing device display, and the measurement chromatic value obtained after measurement is L=61, a=-42, b=-53.Use CIE76 Colorimetry formula,
, it is thus achieved that measure the chromatic value aberration Δ E=4.36 to true color value.In like manner obtain corresponding aberration also dependent on other formula.
Before print product, after the color of the color with sample that compare the printing that display shows is identical, according to the color of the printing that deviation adjustment display shows, such as, increase color value or reduce color value.After adjustment terminates, perform presswork.
In printing process, according to the chromatic value of sample, aberration as parameter, the chromatic value on display can be obtained by colour difference formula.The printing of printing equipment it is used for according to the chromatic value obtained.
Preferably, for avoiding each chromatism of position on the display of Soft proofing equipment different, multiple color lump, a region on each color lump correspondence display can be set over the display.
Seeing Fig. 3, embodiments of the invention also provide for the printing equipment of a kind of color compensation, including:
Display module 31, for being presented to display by the reference color lump with true color value；
Measurement module 32, obtains measurement chromatic value for measuring described display module 31 reference color lump over the display；
Compensating module 33, for the measurement chromatic value deviation compensation operation to be printed to described true color value with described measurement module 32.
By above-mentioned module, use operation to be printed Chromatically compensated, eliminated owing to display shows that there is aberration causes the poor problem of printing effect, is effectively increased printing effect.
Preferably, described measurement module 32 drives eyeonepro equipment to measure described color lump, it is thus achieved that the measurement chromatic value of LAB pattern；
Described device also includes: the white module in school 34, before measuring at described measurement module 32, white to described measurement equipment school.
Preferably, the chromatic value that chromatic value is CMYK pattern of the reference color lump in device；
Described device also includes: modular converter 35, for the described chromatic value with reference to the CMYK pattern of color lump is transformed into LAB pattern, it is thus achieved that described true color value, it is provided that to compensating module 33.
Preferably, device also includes:
Mapping block 36, for setting up each described one-to-one relationship with reference to color lump with described display regional of display module 31 display.
Obviously, those skilled in the art should be understood that, each module of the above-mentioned present invention or each step can realize with general calculating device, they can concentrate on single calculating device, or it is distributed on the network that multiple calculating device is formed, alternatively, they can realize with calculating the executable program code of device, thus, can be stored in storing in device and be performed by calculating device, or they are fabricated to respectively each integrated circuit modules, or the multiple modules in them or step are fabricated to single integrated circuit module realize.So, the present invention is not restricted to the combination of any specific hardware and software.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (9)
1. the printing process of a color compensation, it is characterised in that including:
The reference color lump with true color value is presented on display；
Reference color lump on described display is measured and obtains measuring chromatic value；
With the deviation compensation operation to be printed to described true color value of the described measurement chromatic value, described with described measurement chromatic value, the deviation compensation operation to be printed of described true color value is included: present color value in the display with the printing that the deviation of described true color value is increased or decreased in operation to be printed by described measurement chromatic value.
Method the most according to claim 1, it is characterised in that use eyeonepro equipment that described color lump is measured, it is thus achieved that the measurement chromatic value of LAB pattern；
Also include: before described measurement, white to described measurement equipment school.
Method the most according to claim 2, it is characterised in that
The described chromatic value that chromatic value is CMYK pattern with reference to color lump；
Also include: the described chromatic value with reference to the CMYK pattern of color lump is transformed into LAB pattern, it is thus achieved that described true color value.
Method the most according to claim 1, it is characterised in that described deviation is determined by CIE76 colour difference formula, CIE94 colour difference formula, CIE2000 colour difference formula or CMC colour difference formula.
Method the most according to claim 1, it is characterised in that described is multiple with reference to color lump, regions multiple with described display one_to_one corresponding.
6. the printing equipment of a color compensation, it is characterised in that including:
Display module, for being presented to display by the reference color lump with true color value；
Measurement module, obtains measuring chromatic value for measuring the reference color lump on described display；
Compensating module, for with the deviation compensation operation to be printed to described true color value of the described measurement chromatic value, described with described measurement chromatic value, the deviation compensation operation to be printed of described true color value is included: present color value in the display with the printing that the deviation of described true color value is increased or decreased in operation to be printed by described measurement chromatic value.
Device the most according to claim 6, it is characterised in that described measurement module drives eyeonepro equipment to measure described color lump, it is thus achieved that the measurement chromatic value of LAB pattern；
Also include: the white module in school, for before described measurement, white to described measurement equipment school.
Device the most according to claim 7, it is characterised in that
The chromatic value that chromatic value is CMYK pattern of the reference color lump in described device；
Described device also includes: modular converter, for the described chromatic value with reference to the CMYK pattern of color lump is transformed into LAB pattern, it is thus achieved that described true color value.
Device the most according to claim 6, it is characterised in that also include:
Mapping block, for setting up each described one-to-one relationship with reference to color lump with the display regional of described printing equipment.
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| CN201210132182.9A CN103373098B (en) | 2012-04-27 | 2012-04-27 | The printing process of color compensation and device |
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| CN101141656A (en) * | 2006-09-05 | 2008-03-12 | 广达电脑股份有限公司 | Image processing apparatus and method thereof |
| CN101383138A (en) * | 2008-09-22 | 2009-03-11 | 深圳创维－Rgb电子有限公司 | Color regulating method, system and display |
| CN101388206A (en) * | 2007-09-11 | 2009-03-18 | 普诚科技股份有限公司 | Image adjustment device |
| CN101809647A (en) * | 2007-10-30 | 2010-08-18 | 夏普株式会社 | Methods for selecting backlight illumination level and adjusting image characteristics |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2009234089A (en) * | 2008-03-27 | 2009-10-15 | Mitsubishi Heavy Ind Ltd | Printing target color setting method and apparatus, and pattern color tone controlling method and apparatus |
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Patent Citations (4)
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|---|---|---|---|---|
| CN101141656A (en) * | 2006-09-05 | 2008-03-12 | 广达电脑股份有限公司 | Image processing apparatus and method thereof |
| CN101388206A (en) * | 2007-09-11 | 2009-03-18 | 普诚科技股份有限公司 | Image adjustment device |
| CN101809647A (en) * | 2007-10-30 | 2010-08-18 | 夏普株式会社 | Methods for selecting backlight illumination level and adjusting image characteristics |
| CN101383138A (en) * | 2008-09-22 | 2009-03-11 | 深圳创维－Rgb电子有限公司 | Color regulating method, system and display |
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