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图像检索——基于直方图 | prontosil #54

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rayepeng opened this issue Oct 21, 2019 · 0 comments
Open

图像检索——基于直方图 | prontosil #54

rayepeng opened this issue Oct 21, 2019 · 0 comments
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Gitalk /2019/10/21/tu-xiang-jian-suo-ji-yu-zhi-fang-tu/

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@rayepeng
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https://prontosil.club/2019/10/21/tu-xiang-jian-suo-ji-yu-zhi-fang-tu/#more

核心算法原理 直方图 一幅图像由不同灰度值的像素组成，图像中灰度的分布情况是该图像的一个重要特征。图像的灰度直方图就描述了图像中灰度分布情况，能够很直观的展示出图像中各个灰度级所占的多少。 图像的灰度直方图是灰度级的函数，描述的是图像中具有该灰度级的像素的个数 通俗地来说，就是统计灰度图中256个可能的灰度值，计算出落在256个灰度上的像素点个数，比如灰度为0的像素点有多少个，灰度为1的像素点
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