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This paper studies median filtering algorithm and several related fast algorithm proposed by other professors, then gives a novel fast algorithm of median filtering based on divide-and-conquer method and improved-choose-sort method. In new algorithm, all the pixels in filtering window are divided into several blocks, the median values of each block are computed using improved-choose-sort algorithm,...
According to the deficiency of the traditional detecting method, this paper develops a set of intelligent automatically detecting system for the internal bore surface quality, which combined the image processing technology and pattern recognizing technology. The radius of image is detected using Least-squares fitting circle theory and circular degree is obtained through calculating circular surface...
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