Preserving image features in digital halftoning with a multiscale error diffusion technique

Yuk Hee Chan, Sin Ming Cheung

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


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 dots 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 tht; output. This is critical to the quality when the resolution of the output is limited by the physical constraints of the display unit.
Original languageEnglish
Title of host publication2002 14th International Conference on Digital Signal Processing Proceedings, DSP 2002
Number of pages4
ISBN (Electronic)0780375033
Publication statusPublished - 1 Jan 2002
Event14th International Conference on Digital Signal Processing, DSP 2002 - Conference Centre "P.M. Nomikos", Santorini, Hellas, Greece
Duration: 1 Jul 20023 Jul 2002


Conference14th International Conference on Digital Signal Processing, DSP 2002
CitySantorini, Hellas

ASJC Scopus subject areas

  • Signal Processing

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