Image analysis – Color image processing – Compression of color images
Reexamination Certificate
2007-11-13
2007-11-13
Couso, Yon J. (Department: 2624)
Image analysis
Color image processing
Compression of color images
C382S162000, C382S239000
Reexamination Certificate
active
11370514
ABSTRACT:
To compress an image, each pixel is considered. The color of each pixel, represented as an index into a color palette, is compared with the color of the pixel's upper and left neighbors and encoded to an entry in the color palette. A probability distribution is updated based on the colors of the pixel and its left and upper neighbors. Once all pixels are encoded, the color palette is optimized using the probability distribution, and the indices into the color palette for the pixels are compressed. In the preferred embodiment, the compression is achieved using a single pass over the pixels in the image, and the probability distribution is updated dynamically as each pixel is compressed.
REFERENCES:
patent: 5307088 (1994-04-01), Inuzuka et al.
patent: 5734744 (1998-03-01), Wittenstein et al.
patent: 5796864 (1998-08-01), Callahan
patent: 5859926 (1999-01-01), Asahi et al.
patent: 5933249 (1999-08-01), Shimura et al.
patent: 6038346 (2000-03-01), Ratnakar
patent: 6118552 (2000-09-01), Suzuki et al.
patent: 6300959 (2001-10-01), Gabler et al.
patent: 6327383 (2001-12-01), Todoroki
patent: 6512793 (2003-01-01), Maeda
patent: 6542631 (2003-04-01), Ishikawa
patent: 6553150 (2003-04-01), Wee et al.
patent: 6587583 (2003-07-01), Kurzweil et al.
patent: 6611620 (2003-08-01), Kobayashi et al.
patent: 6681054 (2004-01-01), Gindele
patent: 6697498 (2004-02-01), Kawaguchi et al.
patent: 6909804 (2005-06-01), Caruso et al.
Balashov Konstantin J.
Caruso Robert M.
Couso Yon J.
Marger Johnson & McCollom, P.C.
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