| 摘要 |
The present invention provides a color image processing device and a color image processing method which is In order to perform natural and excellent sharpness processing to image data, the color image processing device of invention comprises: a color space converter ( 1 ) for converting image signals (RGB) to luminance signals (L), first chromaticity signals (C 1 ) and second chromaticity signals (C 2 ); a luminance signal correcting unit for correcting the luminance signal (L) of a target pixel based on an average luminance signal (L<SUB>A</SUB>) obtained from the luminance signals of the target pixel and predetermined pixels surrounding the target pixel and the saturation signal (S) of the target pixel; a chromaticity signal correcting unit for correcting the first chromaticity signal (C 1 ) and the second chromaticity signal (C 2 ) of the target pixel based on the first and second average chromaticity signals (C 1 <SUB>A</SUB>, C 2 <SUB>A</SUB>) obtained from the chromaticity signals of the target pixel and the predetermined pixels surrounding the target pixel, the saturation signal (S) of the target pixel, the average saturation signal (S<SUB>A</SUB>) obtained from the saturation signals of the target pixel and the predetermined pixels surrounding the target pixel, and a hue difference signal (DC); and a color space inverter ( 15 ) for inverting the corrected luminance signal (L'), the corrected first chromaticity signal (C 1' ) and the corrected second chromaticity signal (C 2' ) of the target pixel to image signals (R'G'B'). |
