BibTeX
@MISC{Arad99hplaboratories,
author = {Nur Arad and Doron Shaked and Zachi Baharav and Qian Lin},
title = {HP Laboratories Israel*},
year = {1999}
}
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Abstract
color halftoning, dithering, barycentric coordinates. Monochrome dither halftoning is a gray-scale image rendering procedure where gray-levels in an image are compared against a periodic threshold array, placing a Black dot in every location whose gray-level is smaller than the corresponding threshold value. Current generalizations to color printing result in Cartesian thresholding procedures, namely RGB values are compared component-wise to trivariate thresholds. In this report we develop a color dithering procedure based on a non-Cartesian coordinate system. Its main advantage over the traditional Cartesian thresholding is that it allows the rendition of solid color patches while using no more than a preselected quadruple of colors, thereby enabling a reduction of halftone noise.
Keyphrases
hp laboratory israel periodic threshold array main advantage solid color patch gray-scale image rendering procedure halftone noise corresponding threshold value rgb value traditional cartesian thresholding cartesian thresholding procedure current generalization monochrome dither halftoning non-cartesian coordinate system color halftoning black dot barycentric coordinate preselected quadruple
