Model-based halftoning

Thrasyvoulos N. Pappas*, David L. Neuhoff

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

51 Scopus citations


New model-based approaches to digital halftoning are proposed. They are intended primarily for laser printers, which generate 'distortions' such as 'dot overlap.' Conventional methods, such as clustered-dot ordered dither, resist distortions at the expense of spatial and gray-scale resolution. Our methods rely on printer models that predict distortions and, rather than merely resisting them, they exploit them to increase, rather than decrease, gray-scale and spatial resolution. We propose a general framework for printer models, and find a specific model for laser printers. As an example of model-based halftoning we propose a modification of error diffusion, which is often considered the best halftoning method for CRT displays with no significant distortions. The new version exploits the printer model to extend the benefits of error diffusion to printers. Experiments show that it provides high quality reproductions with reasonable complexity.

Original languageEnglish (US)
Pages (from-to)244-255
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Jan 1 1991
EventSPIE/IS&T Symposium on Electronic Imaging Science and Technology - San Jose, CA, USA
Duration: Feb 24 1991Mar 1 1991

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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