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Proceedings Paper

Modeling large-area influence in digital halftoning for electrophotographic printers
Author(s): Yanling Ju; Dhruv Saxena; Tamar Kashti; Dror Kella; Doron Shaked; Mani Fischer; Robert Ulichney; Jan P. Allebach
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Paper Abstract

Digital halftoning provides a mechanism for rendering continuous-tone images on devices such as printers. With electrophotography, the deposition of toner within the area of a given printer addressable pixel is strongly influenced by the halftone values of the immediately neighboring pixels. To account for these effects, it is necessary to embed a printer model in the halftoning algorithm. In our previous work, we used an efficient strategy to account for the impact of a 5x5 neighborhood of pixels on the central pixel absorptance. Now we examine the potential influence of a much larger neighborhood (45x45) of the digital halftone image on the measured value of a printed pixel at the center of that neighborhood. The experiment shows that the extended model yields a significant improvement in the accuracy of the prediction of the pixel values of the printed and measured halftone image.

Paper Details

Date Published: 24 January 2012
PDF: 9 pages
Proc. SPIE 8292, Color Imaging XVII: Displaying, Processing, Hardcopy, and Applications, 82920X (24 January 2012); doi: 10.1117/12.912769
Show Author Affiliations
Yanling Ju, Purdue Univ. (United States)
Dhruv Saxena, Purdue Univ. (United States)
Tamar Kashti, Hewlett-Packard Indigo Ltd. (Israel)
Dror Kella, Hewlett-Packard Indigo Ltd. (Israel)
Doron Shaked, Hewlett-Packard Labs. Israel Ltd. (Israel)
Mani Fischer, Hewlett-Packard Labs. Israel Ltd. (Israel)
Robert Ulichney, Hewlett-Packard Labs. (United States)
Jan P. Allebach, Purdue Univ. (United States)


Published in SPIE Proceedings Vol. 8292:
Color Imaging XVII: Displaying, Processing, Hardcopy, and Applications
Reiner Eschbach; Gabriel G. Marcu; Alessandro Rizzi, Editor(s)

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