Color processing method and apparatus with a color patch

Details Color processing method and apparatus with a color patch Color processing method and apparatus with a color patch

1989-11-16

1992-06-09

Wieder, Kenneth A.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 80, H04N 146

Patent

active

051211963

ABSTRACT:
A method of determining a combination of Yellow, Magenta, Cyan, and Black color densities from a color value expressed in a color space, comprising the steps of; providing a predetermined number of color patches in which colors on the color patches are arranged different from each other, measuring color values of the colors on the color patches in which the combination of Yellow, Magenta, Cyan, and Black color densities corresponding to each one of the color patches is predetermined, determining color values of a predetermined number of supplementary colors, which are different from the colors on the color patches, according to the color values of the color patches, and determining the combination of Yellow, Magenta, Cyan, and Black color densities, corresponding to each one of the supplementary colors, according to the color values of the supplementary colors.

REFERENCES:
patent: 4590515 (1986-05-01), Wellendorf
patent: 4682216 (1987-07-01), Sasaki et al.
patent: 4717954 (1988-01-01), Fujita et al.
patent: 4887151 (1989-12-01), Wataya

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