Proceedings of the Korean Society of Broadcast Engineers Conference (한국방송∙미디어공학회:학술대회논문집)
- 2009.01a
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- Pages.516-519
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- 2009
IMPROVEMENT OF COLOR HALFTONING USING ERROR DIFFUSION METHOD
- Takahashi, Yoshiaki (School of Science and Technology, Meiji University) ;
- Tanaka, Ken-Ichi (School of Science and Technology, Meiji University)
- Published : 2009.01.12
Abstract
In the printer and the facsimile communication, digital halftoning is extremely important technologies. Error diffusion method is applied easy for color image halftoning. But the problem in error diffusion method is that a quite unrelated color has been generated though it is necessary to express the area of the grayscale in the black and white when the image that there is an area of the grayscale on a part of the color image is processed. The halftoning was assumed to be a combinational optimization problem to solve this problem, and the method of using SA (Simulated Annealing) was proposed. However, new problem existed because the processing time was a great amount compared with error diffusion method. Then, we propose the new error diffusion method.