Printing grey balance presetting method

Abstract

The invention provides a printing grey balance presetting method. A standardized printing test method is used for acquiring website expansion data, grey balance data and the like under different material combinations, then, a specific algorithm is used for presetting grey balance through website expansion, and accordingly the grey balance effect of a printing specimen page can better meet the visual characteristic requirement. By means of the printing grey balance presetting method, printing grey balance presetting is high in efficiency, high in precision and short in cycle; the advantages of being simple in structure, low in cost, high in precision and convenient to implement in printing production management are achieved; the printing grey balance presetting method can be applied to printing grey balance presetting in the spray painting field, the printing and dyeing textile field and other fields in an expandable mode.

Description

technical field [0001] The invention belongs to the technical field of printing, in particular to a printing gray balance preset method. Background technique [0002] Gray balance is a key control point in the process of printing color reproduction, and an important indicator to measure whether there is color shift in printed matter. The accuracy of printing gray balance reproduction will directly affect the accuracy of dot reproduction and the quality of color image reproduction. However, due to the printing environment, plate making conditions, unstable printing presses, and differences in substrates and inks, poor gray balance often results in color cast. Therefore, for different substrates, inks and dot gain, determining the gray balance correction curve is a key factor in determining the printing quality level in printing production and a bottleneck problem that printing companies need to solve urgently. [0003] At present, domestic and foreign printing gray balance ...

AI Technical Summary

Problems solved by technology

Among them, the dot expansion control method realizes gray balance control through CMY dot expansion. Although it can accurately reproduce CMYK four-color dots, it cannot guarantee accurate reproduction of gray balance.

The method of matching the color of the printed matter matches the color of the substrate and uses it as the gray target value. There is a problem that the gray balance meets the requirements, but the layering of the copied printed matter is not good.

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