Equipment calibration method and output device

Abstract

The invention discloses an equipment calibration method and an output device, relating to a color management technology. The equipment calibration method comprises the steps: converting every first color data group in a file to a second color data group according to a first corresponding relation table of the stored first color data groups and second color data groups, wherein the second color data groups are the color data groups corresponding to target objective vision chromatic values which is necessary to output by the first color data groups, in a second corresponding relation table of actual objective vision chromatic values and color data groups, and the second corresponding relation table derives from a color target diagram output through measurement equipment; and outputting the file according to the second color data groups. The color data groups are directly used for calibration, so the correlation of various parameters is taken into consideration, and the equipment calibration efficiency, the operation easiness and the calibration effect are enhanced.

Description

technical field [0001] The invention relates to color management technology, in particular to a device calibration technology in the color management technology. Background technique [0002] With the development of technologies such as color display, digital printing and digital printing, color management plays an increasingly important role in display and printing production. Color is the core of display and print quality control, and color management plays a central role in the entire production management of printing companies. More and more printing companies are starting to introduce and implement printing color management, expecting to form a more efficient printing production system through the cooperation of printing color management and modern printing technology, and improve printing quality and corporate competitiveness. [0003] Color management is generally divided into three steps: device calibration, device characterization, and color conversion. Equipment ...

AI Technical Summary

Problems solved by technology

[0005] Traditional equipment calibration is based on 4 curves corresponding to CMYK respectively. Since the adjustment is based on 4 separate curves, CMYK is also processed separately in the output, and CMYK cannot be considered when adjusting and processing the 4 curves separately. For example, for CMYK=[30, 50, 50, 50] and CMYK=[30, 60, 60, 60], when adjusting the C curve, the adjustment at C=30 is the same, and In fact, although C=30 is the same, the adjustment of C may be different because of the different MYK values. The problem of gray balance needs to be considered, so a certain experience of the operator is required to achieve good results

[0006] And with the development of printing and printing technology, especially the development of digital printing, the ink used is not limited to CMYK four-color, in order to pursue higher quality printing and printing effect, the application of light ink is added, more especially The application of orange, green and other color inks puts forward higher requirements for equipment calibration, and the original equipment calibration method based on curves can no longer meet the equipment calibration requirements in such a complex situation

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