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4 April 1997Ink duty reduction for cluster dot halftoning
Andrei Pascovici,Chia-Hsin Li,Joseph Shou-Pyng Shu,Dennis L. Chao
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Andrei Pascovici,1 Chia-Hsin Li,2 Joseph Shou-Pyng Shu,1 Dennis L. Chao1

1Epson Palo Alto Lab. (United States)
2Epson Corp. (United States)
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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.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andrei Pascovici,Chia-Hsin Li,Joseph Shou-Pyng Shu, andDennis L. Chao"Ink duty reduction for cluster dot halftoning", Proc. SPIE 3018, Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts II, (4 April 1997);https://doi.org/10.1117/12.271605
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KEYWORDS
Printing
Halftones
Moire patterns
Image quality
CMYK color model
Diffusion
Inkjet technology
RGB color model
Composites
Lithium
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Andrei Pascovici, Chia-Hsin Li, Joseph Shou-Pyng Shu, Dennis L. Chao, "Ink duty reduction for cluster dot halftoning," Proc. SPIE 3018, Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts II, (4 April 1997); https://doi.org/10.1117/12.271605
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