Image processing unit

Details Image processing unit Image processing unit

1994-03-15

1995-09-19

Coles, Sr., Edward L.

Facsimile and static presentation processing

Facsimile

Reduced time or bandwidth for static image communication

358432, 3582611, 3582613, 382232, H04N 141, H04N 1419, H04N 1415, G06K 942

Patent

active

054521025

ABSTRACT:
An image processing unit relating to a unit for compressing image data, which, in particular, executes an MMR compression scheme which is a standard of facsimile, and improves a data compression ratio while maintaining data exchangeability. The image processing unit includes an image input unit having a function of inputting given image data, an image pattern detector for detecting a predetermined specific image pattern from image data inputted through the image input unit, an image transformation unit for transforming the detected specific image pattern into specific image data in accordance with a predetermined rule, an image compression unit having a function of compressing image data applied with transformation processing in accordance with predetermined steps of procedure, an image decompression unit for decompressing the compressed image data in accordance with predetermined steps of procedure, and a storage unit for storing image data given from the image compression unit or the image decompression unit.

REFERENCES:
patent: 4922545 (1990-05-01), Endoh et al.
patent: 5212564 (1993-05-01), Yaso et al.
patent: 5274466 (1993-12-01), Ida et al.
patent: 5291303 (1994-03-01), Ishikawa

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