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Proceedings Paper

Ink duty reduction for cluster dot halftoning
Author(s): Andrei Pascovici; Chia-Hsin Li; Joseph Shou-Pyng Shu; Dennis L. Chao
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Paper Abstract

One of the major problems encountered in the color halftoning on ink-jet printers is the problem of ink duty. Most commercial ink-jet printers will produce ink droplets that exceed the physical area of a single. While limiting the continuous tone ink is a valid solution for the dispersed or blue noise dithering, that method fails on cluster dot dither. Our method deals with the Ink Duty problem in the cluster dot case by 'punching out' holes in the halftoning pattern without altering its aspect and in a time efficient manner. Given a printer, we first determine the ink duty constants. Then a dither matrix will be used to remove enough dots locally in order to satisfy the (alpha) , (Beta) , (gamma) constraints.

Paper Details

Date Published: 4 April 1997
PDF: 7 pages
Proc. SPIE 3018, Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts II, (4 April 1997); doi: 10.1117/12.271605
Show Author Affiliations
Andrei Pascovici, Epson Palo Alto Lab. (United States)
Chia-Hsin Li, Epson Corp. (United States)
Joseph Shou-Pyng Shu, Epson Palo Alto Lab. (United States)
Dennis L. Chao, Epson Palo Alto Lab. (United States)


Published in SPIE Proceedings Vol. 3018:
Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts II
Giordano B. Beretta; Reiner Eschbach, Editor(s)

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