Image analysis – Color image processing – Compression of color images
Reexamination Certificate
2005-09-20
2005-09-20
Johns, Andrew W. (Department: 2621)
Image analysis
Color image processing
Compression of color images
C382S245000
Reexamination Certificate
active
06947592
ABSTRACT:
The invention improves the refresh rate and minimizes the memory for display when reproducing a color image. A color image encoding device has a creation device which counts the number of colors used in color image data and creates a global palette which lists corresponding indexes when the number of colors is a specified value or less, a block division device which divides the color image data into a plurality of blocks, a local palette creation device which creates a local palette which lists indexes in the global palette when the number of colors in a block is less than the number of colors in the global palette, and a color index assigning device which assigns the indexes in the global palette to the input pixels when the number of colors is the same as the number of colors in the global palette, and assigns the indexes in the local palette to the input pixels when the numbers of colors is different from the number of colors in the global palette.
REFERENCES:
patent: 3748379 (1973-07-01), Epstein et al.
patent: 4020502 (1977-04-01), Hayami et al.
patent: 4847677 (1989-07-01), Music et al.
patent: 4853767 (1989-08-01), Sakai et al.
patent: 5283840 (1994-02-01), Kitamura et al.
patent: 5768403 (1998-06-01), Suzuki et al.
patent: 5805735 (1998-09-01), Chen et al.
patent: 5883633 (1999-03-01), Gill et al.
patent: 5930387 (1999-07-01), Chan et al.
patent: 6016360 (2000-01-01), Nguyen et al.
patent: 6115496 (2000-09-01), Nguyen et al.
patent: 6574364 (2003-06-01), Economidis et al.
patent: A-62-185413 (1987-08-01), None
patent: A-63-74324 (1988-04-01), None
patent: A-63-76525 (1988-04-01), None
patent: A-5-328142 (1993-12-01), None
patent: A-6-178122 (1994-06-01), None
patent: A-7-336696 (1995-12-01), None
patent: A-8-9163 (1996-01-01), None
Alavi Amir
Johns Andrew W.
Seiko Epson Corporation
LandOfFree
Encoding method of a color image and its encoding device and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Encoding method of a color image and its encoding device and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Encoding method of a color image and its encoding device and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3368961