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Title: A low-complexity multiscale error diffusion algorithm for digital halftoning
Authors: Chung, King-hong
Fung, Yik-hing
Lui, Ka-chun
Chan, Yuk-hee
Subjects: Computation theory
Computational complexity
Error analysis
Image processing
Parallel processing systems
Issue Date: 2005
Publisher: IEEE
Source: ISPACS 2005 : 2005 International Symposium on Intelligent Signal Processing and Communication Systems : December 13-16, 2005 : Chung Chi College, the Chinese University of Hong Kong, Hong Kong, p. 673-676.
Abstract: Multiscale error diffusion (MED) digital halftoning technique outperforms classical conventional error diffusion techniques as it can produce a directional- hysteresis-free bi-level image. However, extremely large computation effort is required for its implementation. In this paper, a fast MED-based digital halftoning technique is proposed to produce a halftone image without directional hysteresis at a significantly reduced computational cost. The amount of reduction is monotonic increasing with the image size. For an image of size 512×512, the proposed algorithm can save 40% of arithmetic operations as compared with MED. Moreover, since it supports parallel processing, processing time can further be squeezed.
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Type: Conference Paper
ISBN: 0-7803-9266-3
Appears in Collections:EIE Conference Papers & Presentations

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