Image processing method and image forming apparatus

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

2006-05-30

2006-05-30

Rogers, Scott A. (Department: 2627)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003270, C358S532000, C358S462000, C382S173000, C382S261000, C382S266000

Reexamination Certificate

active

07054036

ABSTRACT:
A main CPU calculates filter coefficient values corresponding to area discrimination signals on the basis of an input sharpness adjustment value and original mode and a base filter coefficient set and a difference filter coefficient set stored in a ROM, and performs a filtering process by selecting a filter coefficient value in accordance with an area discrimination signal of a pixel of interest in input image data.

REFERENCES:
patent: 5524162 (1996-06-01), Levien
patent: 2003/0184775 (2003-10-01), Hirayama
patent: 2000-333003 (2000-11-01), None
patent: 2002369071 (2002-12-01), None
patent: 2005142891 (2005-06-01), None
U.S. Appl. No. 09/922,733, filed Aug. 7, 2001, Hirayama.

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