Gray stretch histogram equalization;
2016-08-23
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histogram equalization processing of the "central idea" is the original image of the gray level histogram from the more concentrated in a gray range into a uniform distribution in all gray scale. Histogram equalization is the image of nonlinear stretch, re distribution of image pixel value, so that the number of pixels within a certain range of gray. Histogram equalization is to change the histogram distribution of a given image into a "uniform" distribution.
直方图
灰度
均衡化
处理
拉伸
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