Method for compresssing and decompressing color video data that

Details Method for compresssing and decompressing color video data that Method for compresssing and decompressing color video data that

1990-03-19

1991-09-10

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358136, 358 11, 358 12, 358 13, H04N 712

Patent

active

050478532

ABSTRACT:
A data compression method which recognizes the adverse conditions of duochrominance-isoluminance and nonlinear color distribution. A mxn block of pixel data is examined to compute two colors and a bitmap which best represent the block generally using a luminance partitioning technique. The original data and the compressed data are examined to determine if the resultant decompresssed image will contain artifact associated with duochrominance-isoluminance or nonlinear color distribution. If these artifacts will occur in the decompressed data, the decompressed data is not used but rather the block is represented by storing the color of each pixel. This method produces compressed images of excellent quality.

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