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Proceedings Paper

Threshold modulation in error diffusion on nonstandard rasters
Author(s): Keith T. Knox
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Paper Abstract

Threshold modulation has been shown to produce strong effects in error diffusion images. In particular a threshold modulation that is proportional to the input image induces edge enhancement in the output error diffused image. In this paper, examples are shown for image- dependent threshold modulation incorporated into error diffusion implemented on a non- standard raster, such as a serpentine raster or a space filling curve. The amount and type of edge enhancement induced is shown to vary for different raster directions.

Paper Details

Date Published: 1 May 1994
PDF: 11 pages
Proc. SPIE 2179, Human Vision, Visual Processing, and Digital Display V, (1 May 1994); doi: 10.1117/12.172667
Show Author Affiliations
Keith T. Knox, Xerox Webster Research Ctr. (United States)


Published in SPIE Proceedings Vol. 2179:
Human Vision, Visual Processing, and Digital Display V
Bernice E. Rogowitz; Jan P. Allebach, Editor(s)

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