Method and apparatus for generating halftone dots for color prin

Details Method and apparatus for generating halftone dots for color prin Method and apparatus for generating halftone dots for color prin

1997-04-30

2000-08-15

Au, Amelia

Facsimile and static presentation processing

Static presentation processing

Attribute control

358534, H04N 152

Patent

active

061045020

ABSTRACT:
Threshold values are generated in order to disperse isolated dots in an irregular manner when an level of an image signal is between a first signal level and a second signal level. The first signal level is a level at which one isolated dot consisting of one pixel is formed in each one-dot area including one halftone dot, and the second signal level is a level at which no isolated dot consisting of one pixel is formed in each one-dot area. The threshold values are then compared with the image signal, to generate a halftone dot signal representing halftone dots.

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