June 1995
Intermediate to advanced
438 pages
10h 53m
English
Tien-tsin Wong, Computer Science Department The Chinese University of Hong Kong Shatin, Hong Kong. E-mail address: ttwong@cs.cuhk.hk
Siu-chi Hsu, Creature House, Ltd. Hong Kong. E-mail address: schsu@acm.org
Halftoning techniques are used to display continuous tone pictures on bilevel displays and printers (or on those with a very limited number of shades). The most popular and well-known techniques are ordered dither and error diffusion. The latter produces aperiodic patterns with limited low-frequency components, a useful property (Ulichney 1987), but its dispersed dots suffer from an excessive smudging, which is especially objectionable on high-resolution devices. ...
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