similarity of binary images

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S C.Carl 2016-4-12

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https://ww2.mathworks.cn/matlabcentral/answers/278653-similarity-of-binary-images

评论： S C.Carl 2016-4-13

There are two results (binary vessel images) obtained from two different methods.

They appear very close (almost the same). So, I expect that their similarity index with Dice, which is calculate by the equation given in http://www.mathworks.com/matlabcentral/answers/68720-dice-similarity-index-between-segmented-image-and-ground-truth

However, their similarity index is very different (0.80 and 0.15)

Why ?

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Image Analyst 2016-4-12

You didn't answer my questions. So post your code and images.

S C.Carl 2016-4-13

Thank you ImageAnalyst. I could not get permission to upload images, so I could not share it with you. After opening all binary vessel images with bitmap, they are saved as png again. Then I can used the above matlab codes. the problem has been solved by this way Thanks again for your interest

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