Image processing apparatus capable of creating a dither...

Details Image processing apparatus capable of creating a dither... Image processing apparatus capable of creating a dither...

2007-03-06

2007-03-06

Tung, Kee M. (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

Reexamination Certificate

active

10673272

ABSTRACT:
In an image-processing employing a dither matrix a basic dither pattern is formed of a set of a plurality of basic patterns each including a plurality of pixels. In a single basic pattern a single pixel is assigned 1 serving as a number indicating an order followed to illuminate a dot in the dither matrix. When basic dither patterns are arranged longitudinally and laterally a location remotest from any pixel assigned a number is selected and a pixel at that location is assigned a subsequent number. This series of operations is repeated. When there is no basic pattern that is not assigned a number, in basic pattern a number indicating an order followed to illuminate a dot is assigned to allow the dither matrix to a dither matrix of dot convergence type. Thus a dither matrix allowing an image processing apparatus to satisfactorily reproduce an image can be created.

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