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

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

2006-07-04

2006-07-04

Rogers, Scott A. (Department: 2627)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S003210, C358S521000

Reexamination Certificate

active

07072073

ABSTRACT:
In order to carry out gradation drawing processing without causing deterioration of printing processing throughput, i.e., deterioration of printer engine performance, in the event that a received drawing command is a gradation drawing command, the degree of change of color within the gradation drawing area is obtained, and a thinning-out level within the gradation drawing area is determined, based on the obtained degree of change of color. An enlargement value is determined based on the thinning-out level decided upon, and instructions are given to an image processing unit to draw the gradation drawing area in a manner enlarged with the enlarging value decided upon. Next, the color values of the pixel values within the gradation drawing area are calculated at pixel intervals determined by the thinning-out level, and this is used as gradation data.

REFERENCES:
patent: 5303334 (1994-04-01), Snyder et al.
patent: 5933676 (1999-08-01), Ohno
patent: 6111657 (2000-08-01), Muto et al.

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