Color image processing method and apparatus therefor

Details Color image processing method and apparatus therefor Color image processing method and apparatus therefor

1995-10-30

1997-09-30

Mancuso, Joseph

Image analysis

Color image processing

Color correction

358518, G06K 900

Patent

active

056733356

ABSTRACT:
A color-image processing method and apparatus for transforming color-separated RGB image signals into CMY color signals, extracting a minimum-value signal K based upon each of the CMY signals, subjecting each of the CMY signals and the minimum-value signal K to matrix transformation in accordance with prescribed transformation coefficients and outputting the transformed signals, whereby the RGB image signals can be transformed into CMYK color signals efficiently without sacrificing color reproducibility.

REFERENCES:
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patent: 5134667 (1992-07-01), Suzuki
patent: 5172223 (1992-12-01), Suzuki et al.
patent: 5216498 (1993-06-01), Matsunawa et al.
patent: 5220620 (1993-06-01), Nakano et al.

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