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Title: Preserving image features in digital halftoning with a multiscale error diffusion technique
Authors: Chan, YH 
Cheung, SM
Issue Date: 2002
Source: DSP 2002 : 2002 14th International Conference on Digital Signal Processing proceedings : July 1-3, 2002, Santorini, Hellas (Greece), v. 2, p. 1219-1222
Abstract: Multiscale error diffusion is superior to conventional error diffusion methods in digital halftoning as it can completely eliminate directional hysteresis. However, there is a bias to favor a particular type of dot in the course of the halftoning process. In this paper, a new multiscale error diffusion method is proposed to improve the diffusion performance by reducing the aforementioned bias. The proposed method can also eliminate the boundary effect found in conventional multiscale error diffusion methods and preserve the local features of the input image in the output. This is critical to the quality when the resolution of the output is limited by the physical constraints of the display unit.
Keywords: Image resolution
Error diffusion
Publisher: IEEE
ISBN: 0-7803-7503-3
Rights: © 2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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