CN1607548A - Method for making output image color of print device in accord with primary color - Google Patents
Method for making output image color of print device in accord with primary color Download PDFInfo
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- CN1607548A CN1607548A CN 200310101046 CN200310101046A CN1607548A CN 1607548 A CN1607548 A CN 1607548A CN 200310101046 CN200310101046 CN 200310101046 CN 200310101046 A CN200310101046 A CN 200310101046A CN 1607548 A CN1607548 A CN 1607548A
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Abstract
This invention puts forward a method for making the image colors output by a column-printing device the same with the original color. A computer system outputs a set of color block column pint signals to a column-print device to print a color block picture to be shot by a digital camera and output a color image signal for converting said signal to a CIEXYZ chroma signal according to the ICC color describing block of said digital camera by the computer system to be operated with said set color block column print signal to get the ICC color describing block of said device or, the color image signal is operated with said block column print signal to get the relative relation describing block of the camera and said column print device color management and correction.
Description
Technical field
The present invention is relevant a kind of digital color management method, particularly reaches acquisition one printing device color description shelves so that the color method consistent with original color of prining about a kind of digital camera that utilizes.
Background technology
Press, along with popularizing of digital camera and printer, the user is also healed to the requirement of colors of image and is become strict.Owing at present be input to the color representation of printer output and the realistic colour of actual desired has some difference from digital camera, and digitized video is because of output different with input equipment, cause different color display device to produce different performance results, therefore how to make the printer of different labels and specification or color that printing machine prints out more approach the colors of image of former input, real is a great problem.
For making color rendition, just must mention international color consortium (International ColorConsortium is hereinafter to be referred as ICC).ICC alliance is by the common tissue of founding of the well-known manufacturer in the world, integrate at present employed all images File Format, and shelves (a Device Profile) are described in this standard device color of giving a definition, just with various input equipments such as scanner, digital camera, display device such as screen, print equipment such as printer or printing machine etc., behind the certain standard correction program, produce chromatic characteristic and describe shelves (ICC Profile), making distinct device is that different color conversion is carried out to finish the color management of user's expectation in the basis with the color description shelves.
The producing method of existing printer color description shelves must rely on chromascope (Colorimeter) product of being sold as the X-Rite of manufacturer, just can obtain comparatively correct color description shelves data; Yet, those chromascopes not only cost an arm and a leg, and method of operating is very complicated especially, must utilize this chromascope to measure each color lump batten (Color Patch Strip) in regular turn and could obtain necessary color description shelves data, concerning ordinary consumer, and impotentia burden and use.
Therefore, The present invention be directed to above-mentioned problem, propose a kind of method of proofreading and correct printing device image output color, neither need use the chromascope of costliness and trouble, can reach the purpose of quick generation printer color description shelves again simply.
Summary of the invention
Fundamental purpose of the present invention, be that a kind of printing device image output color method consistent with original color that make is being provided, it is the ICC color description shelves that produced this printing device by a digital camera and ICC color description shelves thereof, reappear original colors of image so that see through the ICC color management system, need not use expensive chromascope can utilize the shirtsleeve operation method to reach the effect of generation printing device worker CC color description shelves.
Another object of the present invention, be when digital camera does not have corresponding ICC color description shelves, take the output color image of a printing device by this digital camera, and then find out the input signal of digital camera and the relation between the printing device output signal, to produce one " the color relativeness is described shelves ", reach the effect of management color fast to utilize very simple mode.
A further object of the present invention, be that a kind of printing device image output color method consistent with original color that make is being provided, to produce device color shelves are described, not only be applicable to the digital camera and the printing device of each label, have simultaneously that cost is low, practicality is high, the degree of accuracy advantages of higher of color rendering.
According to the present invention, a kind of printing device image output color method consistent with original color that make is characterized in that, comprises the following steps:
Export one group of color lump by a computer system and print signal, make its color lump figure that prints out to a printing device;
Export a color signal of video signal after utilizing a digital camera that has had ICC color description shelves to take this color lump figure;
According to the ICC color description shelves of this digital camera this color image conversion of signals is become a CIEXYZ carrier chrominance signal by this computer system;
Utilize this computer system that this CIEXYZ carrier chrominance signal and this group color lump signal of prining is carried out computing, to obtain the ICC color description shelves of this printing device, then can utilize these color description shelves further to be inserted in the compatible image software of ICC, to carry out the processing of color management and colour correction.
Wherein, this color lump signal of prining comprises the signal of RGB, CMYK pattern or other printers from the signal of ordering.
Wherein, this digital camera is to take this color lump figure under a uniform source of light.
Wherein, this color lump signal of prining is predefined value, in order to import this color lump figure of this printing device to print predetermined.
Wherein, when carrying out the processing of color management and colour correction, be to utilize an input media with ICC color description shelves to capture the image of an object, to import an ICC color management system, and the ICC color description shelves of this input media are inserted in this ICC color management system, so that the object video conversion that will be imported by the ICC color description shelves of this input media in this ICC color management system becomes a CIEXYZ carrier chrominance signal, convert this carrier chrominance signal to the signal of prining by the ICC color description shelves of this printing device again and export this printing device to, make it according to this signal of prining image of prining.
Wherein, this input media be selected from digital camera and scanner one of them.
A kind of printing device image output color method consistent with original color that make of the present invention is characterized in that, comprises the following steps:
Export one group of color lump by a computer system and print signal, make its color lump figure that prints out to a printing device;
Export a color signal of video signal after utilizing a digital camera to take this color lump figure;
By this computer system this color image signal and this group color lump signal of prining is carried out computing, to find out the relativeness of this digital camera input chrominance signal and printing device output chrominance signal, according to this relation and then produce a color relativeness and describe shelves, then can utilize this color relativeness to describe shelves and further be inserted in color management software, to carry out the processing of color management and colour correction.
Wherein, this color lump signal of prining comprises the signal of RGB, CMYK pattern or other printers from the signal of ordering.
Wherein, this digital camera is to take this color lump figure under a uniform source of light.
Wherein, this color lump signal of prining is predefined value, in order to import this color lump figure of this printing device to print predetermined.
Wherein, when carrying out the processing of color management and colour correction, be after utilizing this color relativeness to describe the image that this digital camera of shelves acquisition takes, convert thereof into the signal of prining and export this printing device to, make it according to this signal of prining image of prining.
Description of drawings
Under cooperate appended accompanying drawing to illustrate in detail by specific embodiment, when the effect that is easier to understand purpose of the present invention, technology contents, characteristics and is reached, wherein:
Fig. 1 produces the method synoptic diagram of printing device color description shelves for the present invention.
Fig. 2 is the method synoptic diagram that the ICC color management system that utilizes Fig. 1 to produce carries out color management.
Fig. 3 produces the other method synoptic diagram of the color relativeness description shelves of digital camera and printing device for the present invention.
Fig. 4 is that the color relations that utilizes Fig. 3 to produce is described the method synoptic diagram that shelves carry out color management.
Embodiment
The present invention utilizes a digital camera and ICC color description shelves thereof to be used as chromascope and then produces the ICC color description shelves of a printer, also can be by digital camera and printer are treated as a system, find out the relativeness between digital camera input signal and printing device output signal and produce color relativeness description shelves, to reach the purpose of color management.
Generally speaking, according to the design of different label printing devices, the signal that printing device receives can be divided into haply and is RGB and two kinds of patterns of CMYK.RGB is red (Red), the abbreviation of green (Green), blue (Blue), is the three primary colors of light; CMYK then is a kind of dim light additive colo(u)r system based on the colorant three primary colors, the four primaries of using for colored printing, formed by blue or green (Cyan), fuchsin (Magenta), yellow (Yellow) and black, and " K " not only represents black, also represents the meaning of key color " Key " simultaneously.
As shown in Figure 1, it is for utilizing digital camera to produce the method synoptic diagram of printing device color description shelves, comprise the following steps: at first, print signal 12 to a printing device by one group of color lump of a computer system 10 outputs, make its color lump Figure 16 that prints out, this printing device is generally a printer or printing machine, will be the example explanation with printer 14 below.Wherein, print signal 12 of color lump is predefined value, and in order to input printer 14 color lump Figure 16 to print predetermined, and the color lump signal 12 of prining is generally the signal of RGB or CMYK pattern, will be the example explanation with the rgb signal below.
Wait to print out behind color lump Figure 16, next, utilize a digital camera 18 that has had ICC color description shelves under a uniform source of light, to take this color lump Figure 16 and can obtain a RGB image, this image is transferred to computer system 10 obtain color image signal 30, convert this rgb color signal of video signal 30 to a CIEXYZ carrier chrominance signal 22 by computer system 10 according to digital camera ICC color description shelves 20 again, wherein, CIE is the standard colorimetric coordinate, its fundamental purpose is with the rgb color space relevant with equipment, convert to and device-independent CIEXYZ color space, to quantize it; Then, utilize computer system 10 that CIEXYZ carrier chrominance signal 22 and this group RGB color lump signal 12 of prining is carried out computing, with acquisition printer ICC color description shelves 24.Then can utilize printer ICC color description shelves 24 further to be inserted in the compatible image software of ICC, to carry out the processing of color management and colour correction.
The synoptic diagram that carries out color management by ICC color management system 26 as shown in Figure 2, at first, capture an object 28 to obtain its RGB image with an input media 27, wherein, input media 27 is the devices for fechtable images such as digital camera or scanners, and input media 27 itself has corresponding input media ICC color description shelves 29; Then, input media ICC color description shelves 29 are inserted in ICC color management system 26, then can in this ICC color management system 26, see through the RGB image of input media ICC color description shelves 29 acquisition objects 28, and convert thereof into a CIEXYZ carrier chrominance signal, by printer ICC color description shelves 24 this conversion of signals is become the RGB signal of prining again, and export printer 14 to, make it according to this RGB signal image of prining of prining, so can make the original color of printer 14 image output colors and digital camera 18 inputs reach consistent.
In addition, when the nil camera ICC color description shelves 20 of digital camera 18 own, see also shown in Figure 3, it is to produce the method synoptic diagram of digital camera 18 and printing device color relativeness description shelves for the present invention utilizes digital camera 18, this method is similar to Fig. 1, same elder generation prints signal 12 to printer 14 by one group of RGB color lump of computer system 10 outputs, make its color lump Figure 16 that prints out, utilize digital camera 18 under a uniform source of light, to take color lump Figure 16 again and can obtain a rgb color image, this image is transferred to computer system 10 obtain color image signal 30; Only be that directly this rgb color signal of video signal 30 and RGB color lump printd signal 12 carry out computing by computer system 10 this moment, to find out the relativeness of digital camera 18 input chrominance signals (RGB) and printer 14 output chrominance signals (RGB/CMYK), according to this relation and then produce a color relativeness and describe shelves 32, then can utilize this color relativeness to describe shelves 32 and further be inserted in color management software, to carry out the processing of color management and colour correction.
The color relativeness is described shelves 32 be inserted in a color management system 34, with the synoptic diagram that carries out color management by color management system 34 as shown in Figure 4, after utilizing digital camera 18 to take an object 28, can obtain the RGB image of object 28; Then can utilize color management system 34 these RGB images of acquisition, and describing shelves 32 according to this color relativeness becomes the RGB signal of prining to export printer 14 to this RGB video conversion, make it according to this signal of prining image of prining, therefore can make the image output color of printer 14 consistent with former input color.
Therefore, the present invention utilizes a digital camera and ICC color description shelves thereof, can be produced the ICC color description shelves of a printing device by the computing of a computer system; Or walk digital camera and printing device can be obtained digital camera input chrominance signal by the computing of computer system again as a system export the relativeness that chrominance signal is asked with printing device, and then produce color relativeness description shelves, so that carry out the subsequent treatment of color management and correction.Therefore the present invention need not use expensive chromascope can utilize very shirtsleeve operation method to reach the purpose that produces printing device color description shelves, and then reaches and make printing device image output color and the consistent effect of former input color; And the present invention not only is applicable to the digital camera and the printing device of each label, and the while is low with cost, practicality is high, the degree of accuracy advantages of higher of color rendering.
The above is by embodiment characteristics of the present invention to be described, its purpose is familiar with this operator and can be understood content of the present invention and implement according to this making, and non-limiting claim of the present invention, so, all other do not break away from equivalence modification or the modification that disclosed spirit is finished, and must be included in the described claim.
Claims (11)
1. one kind makes the printing device image output color method consistent with original color, it is characterized in that, comprises the following steps:
Export one group of color lump by a computer system and print signal, make its color lump figure that prints out to a printing device;
Export a color signal of video signal after utilizing a digital camera that has had ICC color description shelves to take this color lump figure;
According to the ICC color description shelves of this digital camera this color image conversion of signals is become a CIEXYZ carrier chrominance signal by this computer system;
Utilize this computer system that this CIEXYZ carrier chrominance signal and this group color lump signal of prining is carried out computing, to obtain the ICC color description shelves of this printing device, then can utilize these color description shelves further to be inserted in the compatible image software of ICC, to carry out the processing of color management and colour correction.
2. the printing device image output color method consistent with original color that make as claimed in claim 1 is characterized in that, wherein, this color lump signal of prining comprises the signal of RGB, CMYK pattern or other printers from the signal of ordering.
3. the printing device image output color method consistent with original color that make as claimed in claim 1 is characterized in that, wherein, this digital camera is to take this color lump figure under a uniform source of light.
4. the printing device image output color method consistent with original color that make as claimed in claim 1 is characterized in that, wherein, this color lump signal of prining is predefined value, in order to import this color lump figure of this printing device to print predetermined.
5. the printing device image output color method consistent that make as claimed in claim 1 with original color, it is characterized in that, wherein, when carrying out the processing of color management and colour correction, be to utilize an input media with ICC color description shelves to capture the image of an object, to import an ICC color management system, and the ICC color description shelves of this input media are inserted in this ICC color management system, so that the object video conversion that will be imported by the ICC color description shelves of this input media in this ICC color management system becomes a CIEXYZ carrier chrominance signal, convert this carrier chrominance signal to the signal of prining by the ICC color description shelves of this printing device again and export this printing device to, make it according to this signal of prining image of prining.
6. the printing device image output color method consistent with original color that make as claimed in claim 6 is characterized in that, wherein, this input media be selected from digital camera and scanner one of them.
7. one kind makes the printing device image output color method consistent with original color, it is characterized in that, comprises the following steps:
Export one group of color lump by a computer system and print signal, make its color lump figure that prints out to a printing device;
Export a color signal of video signal after utilizing a digital camera to take this color lump figure;
By this computer system this color image signal and this group color lump signal of prining is carried out computing, to find out the relativeness of this digital camera input chrominance signal and printing device output chrominance signal, according to this relation and then produce a color relativeness and describe shelves, then can utilize this color relativeness to describe shelves and further be inserted in color management software, to carry out the processing of color management and colour correction.
8. the printing device image output color method consistent with original color that make as claimed in claim 7 is characterized in that, wherein, this color lump signal of prining comprises the signal of RGB, CMYK pattern or other printers from the signal of ordering.
9. the printing device image output color method consistent with original color that make as claimed in claim 7 is characterized in that, wherein, this digital camera is to take this color lump figure under a uniform source of light.
10. the printing device image output color method consistent with original color that make as claimed in claim 7 is characterized in that, wherein, this color lump signal of prining is predefined value, in order to import this color lump figure of this printing device to print predetermined.
11. the printing device image output color method consistent that make as claimed in claim 7 with original color, it is characterized in that, wherein, when carrying out the processing of color management and colour correction, be after utilizing this color relativeness to describe the image of this digital camera shooting of shelves acquisition, convert thereof into the signal of prining and export this printing device to, make it according to this signal of prining image of prining.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310101046 CN1291353C (en) | 2003-10-13 | 2003-10-13 | Method for making output image color of print device in accord with primary color |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200310101046 CN1291353C (en) | 2003-10-13 | 2003-10-13 | Method for making output image color of print device in accord with primary color |
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| CN1607548A true CN1607548A (en) | 2005-04-20 |
| CN1291353C CN1291353C (en) | 2006-12-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101692690B (en) * | 2009-10-10 | 2011-06-15 | 杭州科雷机电工业有限公司 | Remote color correction method |
| CN102629967A (en) * | 2012-04-18 | 2012-08-08 | 山东神思电子技术股份有限公司 | Correction method for non-uniform illumination of copying device |
| CN106569753A (en) * | 2016-10-31 | 2017-04-19 | 敬业（东莞）印刷包装厂有限公司 | Wide-gamut color management method, system and apparatus |
-
2003
- 2003-10-13 CN CN 200310101046 patent/CN1291353C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101692690B (en) * | 2009-10-10 | 2011-06-15 | 杭州科雷机电工业有限公司 | Remote color correction method |
| CN102629967A (en) * | 2012-04-18 | 2012-08-08 | 山东神思电子技术股份有限公司 | Correction method for non-uniform illumination of copying device |
| CN102629967B (en) * | 2012-04-18 | 2014-03-19 | 山东神思电子技术股份有限公司 | Correction method for non-uniform illumination of copying device |
| CN106569753A (en) * | 2016-10-31 | 2017-04-19 | 敬业（东莞）印刷包装厂有限公司 | Wide-gamut color management method, system and apparatus |
| CN106569753B (en) * | 2016-10-31 | 2019-10-18 | 敬业（东莞）印刷包装厂有限公司 | A kind of wide colour gamut color management method, system and device |
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| Publication number | Publication date |
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| CN1291353C (en) | 2006-12-20 |
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