Image processing apparatus and method for improving output...

Details Image processing apparatus and method for improving output... Image processing apparatus and method for improving output...

2007-01-30

2007-01-30

Williams, Kimberly (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003150, C358S003030, C358S003270, C382S261000, C382S199000

Reexamination Certificate

active

10119957

ABSTRACT:
An image processing apparatus includes a first filtering process device configured to perform a predetermined space frequency characteristic conversion process to input image data having multiple-level gradation. A conversion process device performs a gradation characteristic conversion process to an output result of the first filtering process device. A second filtering process device performs a predetermined space frequency characteristic conversion process to an output result of the conversion process device. A halftone processing device performs a quasi-gradation processing to an output result of the second filtering process device.

REFERENCES:
patent: 6567544 (2003-05-01), Kanno et al.
patent: 6897983 (2005-05-01), Kawano
patent: 8-15310 (1996-02-01), None
patent: 8-181864 (1996-07-01), None

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