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18 December 2003 A new halftoning technique to eliminate ambiguous pixels for stable printing
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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.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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);


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