Image processing apparatus, image forming apparatus, and...

Details Image processing apparatus, image forming apparatus, and... Image processing apparatus, image forming apparatus, and...

2006-08-15

2006-08-15

Rogers, Scott A. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003060, C358S003120, C358S003260, C382S194000, C382S205000

Reexamination Certificate

active

07092124

ABSTRACT:
Disclosed are an image processing apparatus that can decrease image quality deterioration caused by misjudgment of a halftone-dot area when its resolution is beyond an appropriate range etc., in the case where judgment of a halftone-dot area is based on the number of isolated pixels present in a predetermined area, and an image forming apparatus that utilizes the image processing apparatus. A white isolated pixel detection unit442(and a black isolated pixel detection unit) includes a plurality of filters4421and4422that each can detect an isolated pixel in a halftone-dot of a different size. When output is made indicating that a target pixel is an isolated pixel detected by at least one of the filters, the target pixel is judged to be an isolated pixel.

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U.S. Appl. No. 09/369,176.
U.S. Appl. No. 09/568,669.

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