A new halftoning technique to eliminate ambiguous pixels for stable printing

Shinji Sasahara; Tetsuo Asano

doi:10.1117/12.548468

18 December 2003 A new halftoning technique to eliminate ambiguous pixels for stable printing

Shinji Sasahara, Tetsuo Asano

Proceedings Volume 5293, Color Imaging IX: Processing, Hardcopy, and Applications; (2003) https://doi.org/10.1117/12.548468
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

Abstract

All printing processes basically involve some instabilities of analog nature. To overcome such instabilities, in this paper, we have developed a unique halftoning technique for stable printing. Based on the charateristics of xerography, a combination of Gaussian filter with a sigmoid nonlinear function was used to calculate the probability of toner transfer in print. We can obtain a simulated i mage in print for xerography using this nonlinear printer model. Halftone images are formed to have a good image quality under this model in a way so that the perceptive error with respect to an original gray scale image is small. To achieve this, ambiguous pixels that have their transfer probabilities within a band in our nonlinear printer model as eliminated as much as possible by an iterative improvement method. As a result, we can obtain an ideal halftone screen without anisotropy for xergraphic printer.

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Shinji Sasahara and Tetsuo Asano "A new halftoning technique to eliminate ambiguous pixels for stable printing", Proc. SPIE 5293, Color Imaging IX: Processing, Hardcopy, and Applications, (18 December 2003); https://doi.org/10.1117/12.548468

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KEYWORDS

Printing

Halftones

Xerography

Binary data

Image quality

Gaussian filters

Anisotropy

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