An error diffusion technique with reduced directional hysteresis

Yuk Hee Chan, H.T. Kwong, Kwok Tung Lo, C.K. Li

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


In this paper, a digital halftoning method is proposed to diffuse error with a more symmetric error distribution by making use of the concept of delayed decision. It can improve the diffusion performance by effectively reducing the directional hysteresis. A corresponding dot-overlap compensation scheme is also proposed to eliminate the bias in the gray scale of the printed images.
Original languageEnglish
Title of host publicationProceedings - IEEE International Symposium on Circuits and Systems
ISBN (Print)0780354710
Publication statusPublished - 1999


  • Decision theory
  • Error correction
  • Image enhancement
  • Image quality


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