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Ink Relocation for Color Halftones

Shaked, Doron; Arad, Nur; Fitzhugh, Andrew; Sobel, Irwin

HPL-96-127R1

Keyword(s): color halftoning; halftone noise reduction; color saturation

Abstract: Current methodologies for color image halftoning produce prominent halftoning noise. In this paper we argue that brightness variation between color dots placed at neighboring locations is a major cause of color halftone noise. To correct this flaw we propose Ink Relocation, a postprocess to arbitrary color halftoning algorithms. The proposed postprocess relocates ink drops between neighboring drop locations in order to reduce local brightness variation.

10 Pages

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