Image compression using adjacent pixels and predetermined colors

Details Image compression using adjacent pixels and predetermined colors Image compression using adjacent pixels and predetermined colors

1997-07-28

1999-06-22

Rogers, Scott

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

395114, 358359, 382232, 382166, G06K 1502, G06T 900, H04N 164

Patent

active

059150777

ABSTRACT:
Compression for color values of pixels in a raster image of pixels, in which pixels are selected in a checkerboard-like pattern. Pixels selected by the checkerboard are not compressed at all, whereas pixels not selected by the checkerboard are compressed by using the color of the closest one of adjacent selected pixels and of a few predetermined colors.

REFERENCES:
patent: 5450130 (1995-09-01), Foley
patent: 5553200 (1996-09-01), Accad

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