JPEG encoding for document images using pixel classification

Details JPEG encoding for document images using pixel classification JPEG encoding for document images using pixel classification

2007-11-27

2007-11-27

Desire, Gregory M (Department: 2624)

Image analysis

Image compression or coding

Quantization

C358S426140, C375S240030, C375S240200, C375S240220, C382S250000

Reexamination Certificate

active

10744884

ABSTRACT:
The invention provides a system and method for JPEG encoding an image that includes variable quantization for each block, depending upon the classification of each block, which is dependent on the classification of pixels in that block.

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