Image data compression method

Details Image data compression method Image data compression method

2005-12-06

2005-12-06

Williams, Kimberly (Department: 2626)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C382S232000

Reexamination Certificate

active

06972868

ABSTRACT:
A method of compressing a set of image data organized into a matrix of pixels includes selecting a multi-pixel block portion of the data, then performing a mathematical function on the multi-pixel block portion to generate a first result. The multi-pixel block portion is divided into at least two segments, and a function is performed on each of the segments to generate a second result and a third result. Based on a comparison of the first, second, and third results, determining whether or not to compress the multi-pixel block portion. The function may be a deviation or mean measurement and serve to determine the noise level and image detail level to determine whether to compress or divide the block into sub blocks. Sub blocks may be recursively analyzed for compression or subdivision until all sub blocks are compressed or divided into single pixels.

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