PICTURE PROCESSING METHOD, PICTURE IDENTIFICATION METHOD AND PICTURE PROCESSOR
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机译:图片处理方法,图片识别方法和图片处理器
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摘要
PURPOSE:To finely and easily binarize input pictures in which shadows, gradation and lines coexist. CONSTITUTION:The input pictures are inputted (step 31) and distribution value pictures corresponding to the input pictures are generated by a distribution filter (step 33). The distribution filter obtains the distribution of the gradation values of the fixed number of picture elements present near a point (the picture element) under consideration and outputs an obtained distribution value as a featured value for the point under consideration. Thereafter, a simple binarization processing (by a threshold value) is performed on the distribution value pictures (step 37).
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