Clustered-minority-pixel error diffusion
JOSA A, Vol. 21, Issue 7, pp. 1148-1160 (2004)
http://dx.doi.org/10.1364/JOSAA.21.001148
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Abstract
We present a clustered-minority-pixel error-diffusion halftoning algorithm for which the quantizer threshold is modified on the basis of the past output and a dot activation map. Dot area, dot shape, and dot distribution are more controllable than with other clustered-dot halftone algorithms such as Levien’s algorithm. This method also effectively reduces structured mazelike artifacts in midtones that occur in Levien’s algorithm. The dot distribution is further improved by using different error-diffusion weights for different input gray levels.
© 2004 Optical Society of America
OCIS Codes
(100.0100) Image processing : Image processing
(100.2810) Image processing : Halftone image reproduction
Citation
Pingshan Li and Jan P. Allebach, "Clustered-minority-pixel error diffusion," J. Opt. Soc. Am. A 21, 1148-1160 (2004)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-21-7-1148
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