Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/1524
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Title: Feature-preserving multiscale error diffusion for digital halftoning
Authors: Chan, YH 
Cheung, SM
Issue Date: Jul-2004
Source: Journal of electronic imaging, July 2004, v. 13, no. 3, p. 639-645
Abstract: Multiscale error diffusion is superior to conventional error diffusion methods in digital halftoning as it can eliminate directional hysteresis completely. However, there is a bias to favor a particular type of dots in the course of the halftoning process. A new multiscale error diffusion method is proposed to improve the diffusion performance by reducing the aforementioned bias. The proposed method can eliminate the pattern noise in flat regions and the boundary effect found in some other conventional multiscale error diffusion methods. At the same time, it can preserve the local features of the input image in the output. This is critical to quality, especially when the resolution of the output is limited by the physical constraints of the display unit.
Keywords: Image processing
Digital halftoning
Diffusion methods
Algorithms
Publisher: SPIE-International Society for Optical Engineering
Journal: Journal of electronic imaging 
ISSN: 1017-9909
EISSN: 1560-229X
DOI: 10.1117/1.1758728
Rights: Copyright 2004 Society of Photo-Optical Instrumentation Engineers and IS&T. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
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