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Proceedings Paper

Adaptive image halftoning based on wavelet transform
Author(s): Yingping Zhang; Mingui Sun; Ching-Chung Li
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Paper Abstract

A new adaptive digital halftoning method is presented where the screen function is designed to be adaptive to the local variation of image intensity. Wavelet transform is used to extract the information of this variation by estimating the gradient at each pixel. Our initial experimental results have shown improved visual effect of the halftoned images.

Paper Details

Date Published: 27 August 1993
PDF: 11 pages
Proc. SPIE 1961, Visual Information Processing II, (27 August 1993); doi: 10.1117/12.150964
Show Author Affiliations
Yingping Zhang, Univ. of Pittsburgh (United States)
Mingui Sun, Univ. of Pittsburgh (United States)
Ching-Chung Li, Univ. of Pittsburgh (United States)

Published in SPIE Proceedings Vol. 1961:
Visual Information Processing II
Friedrich O. Huck; Richard D. Juday, Editor(s)

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