Apparatus, method, and computer program product for image...

Details Apparatus, method, and computer program product for image... Apparatus, method, and computer program product for image...

2006-04-04

2006-04-04

Do, Anh Hong (Department: 2627)

Image analysis

Image compression or coding

Contour or chain coding

C382S239000, C382S266000

Reexamination Certificate

active

07024047

ABSTRACT:
An apparatus for image processing including a region detector, a density conversion unit, a compression unit, and an expansion unit. The region detector detects an edge region in an image data. The density conversion unit reduces a density difference within the edge region detected by the region detector. The compression unit compresses the image data within the edge region where the density difference is reduced by the density conversion unit, using the discrete cosine transform. The expansion unit expands the image data compressed by the compression unit.

REFERENCES:
patent: 4853752 (1989-08-01), Takahashi et al.
patent: 5189528 (1993-02-01), Takashima et al.
patent: 5757972 (1998-05-01), Murayama
patent: 5774077 (1998-06-01), Schouhamer Immink
patent: 5862264 (1999-01-01), Ishikawa et al.
patent: 6373992 (2002-04-01), Nagao
patent: 0 758 186 (1997-02-01), None
patent: 3-276966 (1991-12-01), None
patent: 404134340 (1992-05-01), None
patent: 4-248766 (1992-09-01), None
patent: 4-311195 (1992-11-01), None
patent: 05-145768 (1993-06-01), None
patent: 05-294018 (1993-11-01), None
patent: 7-95578 (1995-04-01), None
patent: 9-107549 (1997-02-01), None
patent: 9-98421 (1997-04-01), None
patent: 9-98421 (1997-04-01), None
patent: 9-130797 (1997-05-01), None
patent: 9-224246 (1997-08-01), None
patent: 10-42294 (1998-02-01), None

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