Color correction device with a hue area judgment unit to determi

Details Color correction device with a hue area judgment unit to determi Color correction device with a hue area judgment unit to determi

1989-03-07

1991-01-29

Groody, James J.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 75, H04N 146, G03F 308

Patent

active

049890808

ABSTRACT:
A color correction device used for a color electrophotographic machine or color printing machine. The device includes a hue area judgement unit for judging to which hue area among at least three predetermined hue areas the hut represented by input color image signals belongs by comparing the input color image signals with each other. With respect to the judged hue area according to this judgment, color correction parameters are set, and in accordance with the set color correction parameters, the input image signals are converted to output color image signals used for printing.

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patent: 4643563 (1987-02-01), Sayanagi
patent: 4670780 (1987-06-01), McManus et al.
patent: 4675704 (1987-06-01), Yamamoto
patent: 4737842 (1988-04-01), Nagasaki
patent: 4763186 (1988-08-01), Sarabia et al.
patent: 4782384 (1988-11-01), Tucker et al.

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