how to find similarity in more than 2 images

2018-06-09 18:03:34

I know how to compare 2 images with SIFT (in matlab) but what if I have to find the similarity in between multiple images. Let for instance, I have 30 Images. How can I use SIFT to say that 10 of them have 30% match and 5 of them have 95% match? I can use clustering but before doing that I need some kind of value on which I can apply clustering technique. I have been bothered by this question for quiet a few hours. So friends if you know please do help me.

thanks

Consider SIFT-ing by comparison to the average image, then cluster by similar amounts/locations of difference across the image. Then, you can compare the image clusters to the cluster-averages.

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