Color image processing device and color image processing method

Image analysis – Color image processing – Color correction

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C382S163000, C358S520000

Reexamination Certificate

active

10066671

ABSTRACT:
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 (C1) and second chromaticity signals (C2); a luminance signal correcting unit for correcting the luminance signal (L) of a target pixel based on an average luminance signal (LA) 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 (C1) and the second chromaticity signal (C2) of the target pixel based on the first and second average chromaticity signals (C1A, C2A) 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 (SA) 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 (C1′) and the corrected second chromaticity signal (C2′) of the target pixel to image signals (R′G′B′).

REFERENCES:
patent: 6078686 (2000-06-01), Kim
patent: 6823083 (2004-11-01), Watanabe et al.
patent: 9-284560 (1997-10-01), None
patent: 10-42152 (1998-02-01), None
patent: 2906975 (1999-04-01), None
patent: 2000-175046 (2000-06-01), None
patent: 2000-175047 (2000-06-01), None
patent: 2000-278542 (2000-10-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Color image processing device and color image processing method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Color image processing device and color image processing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color image processing device and color image processing method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3838536

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.