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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 16, Iss. 7 — Jul. 1, 1999
  • pp: 1575–1586

Digital halftoning by means of green-noise masks

Daniel L. Lau, Gonzalo R. Arce, and Neal C. Gallagher  »View Author Affiliations


JOSA A, Vol. 16, Issue 7, pp. 1575-1586 (1999)
http://dx.doi.org/10.1364/JOSAA.16.001575


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Abstract

We introduce a novel technique for generating green-noise halftones—stochastic dither patterns composed of homogeneously distributed pixel clusters. Although techniques employing error diffusion have been proposed previously, the technique here employs a dither array referred to as a green-noise mask, which greatly reduces the computational complexity formerly associated with green noise. Compared with those generated with blue-noise masks, halftones generated with green-noise masks are less susceptible to printer distortions. Because green noise constitutes patterns with widely varying cluster sizes and shapes, the technique introduced here for constructing these green-noise masks is tunable; that is, it allows for specific printer traits, with small clusters reserved for printers with low distortion and large clusters reserved for printers with high distortion. Given that blue noise is a limiting case of green noise, this new technique can even create blue-noise masks.

© 1999 Optical Society of America

OCIS Codes
(100.0100) Image processing : Image processing
(100.2810) Image processing : Halftone image reproduction

History
Original Manuscript: August 11, 1998
Revised Manuscript: February 3, 1999
Manuscript Accepted: February 3, 1999
Published: July 1, 1999

Citation
Daniel L. Lau, Gonzalo R. Arce, and Neal C. Gallagher, "Digital halftoning by means of green-noise masks," J. Opt. Soc. Am. A 16, 1575-1586 (1999)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-16-7-1575

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