Image processing method, apparatus and program

Details Image processing method, apparatus and program Image processing method, apparatus and program

2005-05-24

2009-11-24

Zimmerman, Mark K (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C382S252000, C382S253000, C382S254000, C345S616000

Reexamination Certificate

active

07623267

ABSTRACT:
The image processing method for obtaining a quantized image from a multiple tone image, the method comprises: an image dividing step of dividing an input image into a plurality of image blocks of a unit block size; a threshold value matrix specification step of specifying threshold value matrices for the input image with respect to each of the image blocks from a plurality of threshold value matrices including a first threshold value matrix having the unit block size and a second threshold value matrix dividable into a plurality of sub-matrices each having the unit block size; and a threshold value matrix setting step of setting threshold value matrices in image blocks for which the second threshold value matrix has been specified as the threshold value matrix, in such a manner that adjacent positional relationships between sub-matrices formed when the second threshold value matrix is divided into sub-matrix units are preserved.

REFERENCES:
patent: 5642439 (1997-06-01), Sato et al.
patent: 5815286 (1998-09-01), Matsuba et al.
patent: 6081349 (2000-06-01), Ebitani et al.
patent: 6204934 (2001-03-01), Minamino
patent: 6437877 (2002-08-01), Takei
patent: 7170639 (2007-01-01), Dittrich et al.
patent: 7268919 (2007-09-01), Katsuyama
patent: 08214159 (1996-08-01), None

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