如何衡量两个灰度图像之间的相似度？
[英]How to measure the similarity between two gray level images?
问题描述
I have 2 gray-level images and want to measure the similarity between two images using subtraction and opencv.
我有 2 个灰度图像，想使用减法和 opencv 来测量两个图像之间的相似性。 I tried to subtract the images and count black pixels but some values may be under 0 so I guess they will be displayed as 0 and that means this way is not so accurate.我试图减去图像并计算黑色像素，但有些值可能低于 0，所以我猜它们将显示为 0，这意味着这种方式不太准确。 I need a way to find the percentage using subtraction.我需要一种方法来使用减法找到百分比。
1 个解决方案
解决方案1
0 2020-04-07 21:02:28
There are many ways to measure similarity or differences in images.有许多方法可以测量图像的相似性或差异。 The request you are asking is specifically for L1 Differences .您要求的请求专门针对L1 Differences 。
For a quick and simple solution just take the absolute value.对于一个快速简单的解决方案，只需取绝对值。
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