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Error Diffusion Using an Adaptive Threshold  

Kwon Jun-Sik (Dept. Electrical Eng., Se-myung University)
Lee Jae-Young (Dept. Image Eng., Graduate School of Advanced Imaging Science, Multimedia and Film, Chung-Ang University)
Park You-Shin (Dept. Image Eng., Graduate School of Advanced Imaging Science, Multimedia and Film, Chung-Ang University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.43, no.1, 2006 , pp. 17-26 More about this Journal
Abstract
The error diffusion method is one of the digital halftoning processes that transforms the continuous-tone image to the binary image and the method has the excellent reproduction ability. However the error diffusion method using the permanent threshold has difficulty in proper binarization, so the method has the periodic pattern and is unpleasant to the eye. In this paper, to reduce defects and to binarize properly, we propose the error diffusion method using the adaptive threshold. Depending on the intensity distribution of the input gray scale image, we decided on the adaptive threshold with the average of the intensities. The error diffusion method with the adaptive threshold has the better performance than the existing method and is evaluated with experiments and comparisons.
Keywords
error diffusion; halftoning; dithering; adaptive threshold;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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