Apparatus and method for image processing, and computer product

Details Apparatus and method for image processing, and computer product Apparatus and method for image processing, and computer product

2005-03-17

2009-02-03

Do, Anh Hong (Department: 2624)

Image analysis

Image compression or coding

C382S248000, C382S199000, C382S166000

Reexamination Certificate

active

07486829

ABSTRACT:
In an image processing apparatus, a pseudo tone processor performs a pseudo tone process by performing an area coverage modulation expression process with respect to M-bit image data, to thereby convert the M-bit image data into N-bit image data, where N is smaller than M. A lossy compressor performs lossy compression with respect to the N-bit image data, by suppressing fluctuations in a pseudo tone processing frequency within a certain range.

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