System for converting color image signals from RGB to CMY color

Details System for converting color image signals from RGB to CMY color System for converting color image signals from RGB to CMY color

1996-09-27

1998-07-28

Lee, Thomas D.

Image analysis

Color image processing

Color correction

358522, 358523, H04N 146, G06K 900

Patent

active

057871930

ABSTRACT:
A system for converting RGB color signals to CMY or CMYK color signals, such as to operate a color printing apparatus, utilizes three separate electronic look-up tables. Each look-up table allows inputs of RGB signals, which are applied to a three-dimensional space. Each point in the space represents an output for one CMY color signal, and each look-up table is dedicated to one CMY color output. Each look-up table emphasizes one particular RGB color, by providing a higher resolution of inputs along the axis for that color.

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