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Title: Feature-preserving multiscale error diffusion for digital halftoning
Authors: Chan, Yuk-hee
Cheung, Sin-ming
Subjects: Image processing
Digital halftoning
Diffusion methods
Issue Date: Jul-2004
Publisher: SPIE and IS&T
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.
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.
Type: Journal/Magazine Article
DOI: 10.1117/1.1758728
ISSN: 1017-9909
Appears in Collections:EIE Journal/Magazine Articles

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