Halftone image processing using a dither matrix with a...

Details Halftone image processing using a dither matrix with a... Halftone image processing using a dither matrix with a...

2005-11-14

2009-06-02

Rogers, Scott A (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003060, C358S003130, C358S003230, C358S534000

Reexamination Certificate

active

07542169

ABSTRACT:
An image processing apparatus comprising a halftone processing section which executes a halftone process for input image data, wherein the halftone processing section executes the halftone process, by using a dither matrix, the order of producing the dots in the halftone process is consecutive in a main scanning direction, in the pixel block, and the starting position of producing the dots in the pixel block is shifted in the main scanning direction by no less than two dots from the starting position of the adjoining pixel block in the sub scanning direction.

REFERENCES:
patent: 01-249350 (1989-10-01), None
patent: 09-134047 (1997-05-01), None
patent: 11-286132 (1999-10-01), None
patent: 2000094756 (2000-04-01), None
patent: 2003-051942 (2003-02-01), None
patent: 2004-080109 (2004-03-01), None

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