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Remote color correction method

A remote color correction technology, applied in the direction of image communication, electrical components, etc., can solve the problems of expensive software and hardware, accurate color correction, etc., and achieve the effect of wide range and simple operation.

Active Publication Date: 2010-04-07
HANGZHOU CRON MACHINERY & ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the supporting software and hardware for ICC color correction are very expensive, and the accuracy is very high. It is impossible to perform color correction on rough or irregular media (such as sweaters and inkjet on rough surfaces, etc.).

Method used

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  • Remote color correction method

Examples

Experimental program
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Effect test

Embodiment

[0031] We now designate HP Officejet J3500 color inkjet printer as the standard scheme A, and Kelei Jingcai digital printing machine as the scheme B to be corrected. Our ultimate goal is to make the pattern printed by scheme B consistent with scheme A.

[0032] First output the CMYK four-color grayscale scale with the equipment to be corrected (Korei Jingcai digital printing machine), and adjust a grayscale curve based on experience or a spectrophotometer; the specific process is to input the CMYK four-color grayscale scale picture ( Figure 4 ), output the linearization curve file.

[0033] Then follow the steps below:

[0034] I: The same electronic image is output by the two schemes A and B respectively, and two electronic images are obtained after scanning; the three electronic images are divided into multiple sampling points with the same two-dimensional coordinate system, and then three sets of colors are obtained. data (the same coordinate point on the three electronic...

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PUM

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Abstract

The invention relates to a remote color correction method and solves the technical problem that the method can be suitable for various medium and has the advantages of accurate color correction, simple and full-automatic operation, low requirements for operators and equipment configuration and low cost. The invention has the technical scheme that the method comprises the following steps: (1) respectively determining an ideal color correction target and a correction target; (2) by adopting the same electronic document D, by using a scheme A, namely, outputting the color correction target to obtain a picture A', and by using a scheme B, namely, outputting the color correction target to obtain a picture B'; (3) scanning the picture A' and the picture B' by using the same scanner to respectively obtain an electronic picture A'' and an electronic picture B'', and sending the electronic picture A'' and the electronic picture B'' to a color corrector through e-mail; and (4) generating a color description document by the color corrector according to the two electronic pictures, and sending the color description document to the user, wherein the color description document is a standard ICC profile document.

Description

technical field [0001] The invention relates to a color correction method, especially a method for performing color correction at a long distance. Background technique [0002] Nowadays, the application of color output has become more and more extensive, and people's requirements for color are becoming more and more stringent. Every manufacturer hopes that the color they output is absolutely accurate and meets the requirements of users; however, color correction requires a lot of experience, which means that the service is very difficult. [0003] Typical color correction methods use color output software; and general color output software uses two methods for color correction: linearization and ICC color correction. Linearization is to achieve the goal of basically correct color by adjusting the depth and depth of each color channel and pulling out the layers. But because the color of the current output ink or the output medium itself varies widely, that is to say, no mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/60
Inventor 刘潭华项建龙
Owner HANGZHOU CRON MACHINERY & ELECTRONICS CO LTD
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