Image forming apparatus and image forming method

Details Image forming apparatus and image forming method Image forming apparatus and image forming method

2011-02-15

2011-02-15

Tran, Phuoc (Department: 2624)

Image analysis

Image compression or coding

Adaptive coding

C382S251000, C382S296000

Reexamination Certificate

active

07889936

ABSTRACT:
An image forming apparatus and method capable of decompressing and compressing image data. More specifically, the apparatus and method include decompressing first compressed image data, processing the decompressed image data, selecting from among a plurality of quantization tables a quantization table providing a compression ratio lower than a compression ratio of the first compressed image data, and compressing the processed image data.

REFERENCES:
patent: 5930400 (1999-07-01), Kanda et al.
patent: 6052488 (2000-04-01), Takahashi et al.
patent: 7372600 (2008-05-01), Kondo
patent: H08-180194 (1996-07-01), None
patent: H09-093422 (1997-04-01), None
patent: H10-336427 (1998-12-01), None

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