Patent Document ID: 20020114513
Application ID: 10066671
Patent Status: 0

Claim One:
1. A color image processing device comprising: a color space converter for converting image signals to luminance signals corresponding to luminance and first and second chromaticity signals corresponding to chromaticity; a luminance signal correcting unit for correcting the luminance signal of a target pixel based on an average luminance signal obtained from luminance signals of the target pixel and predetermined pixels surrounding the target pixel, and a saturation signal corresponding to saturation of the target pixel; a chromaticity signal correcting unit for correcting the first and second chromaticity signals of the target pixel based on first and second average chromaticity signals obtained from the chromaticity signals of the target pixel and the predetermined pixels surrounding the target pixel, the saturation signal of the target pixel, an average saturation signal of the target pixel and the predetermined pixels surrounding the target pixel, and a hue difference signal representing color similarity which is obtained from the first and second chromaticity signals and the first and second average chromaticity signals; and a color space inverter for inverting the corrected luminance signal, the corrected first chromaticity signal and the corrected second chromaticity signal to image signals.