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

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

2006-04-11

2006-04-11

Coles, Edward (Department: 2622)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S001900, C358S002100, C345S581000, C345S592000, C345S632000, C345S633000

Reexamination Certificate

active

07027184

ABSTRACT:
The object of the present invention is to appropriately determine an attribute of a synthesized pixel at the time of synthesizing processing. An attribute of a pixel, synthesized based on a transmissivity α of a source pixel, is determined in the following manner. A threshold value T is obtained from attribute designation data (S603), the transmissivity α is compared with the threshold value T (S604), and if the transmissivity α is larger than the threshold value T, an attribute of a destination pixel is determined as the attribute of the synthesized pixel (S605), while if the transmissivity α is smaller than the threshold value T, an attribute of a source pixel is determined as the attribute of the synthesized pixel (S606).

REFERENCES:
patent: 5371610 (1994-12-01), Sugawa
patent: 5577179 (1996-11-01), Blank
patent: 6118427 (2000-09-01), Buxton et al.
patent: 6359631 (2002-03-01), DeLeeuw
patent: 6377269 (2002-04-01), Kay et al.
patent: 6744430 (2004-06-01), Shimizu
Azriel Rosenfeld and Avinash C. Kak, “Digital Picture Processing,” second edition, vol. 2, pp. 66-68.

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