Finding duplicated photo

Hello,

I came across the problem that Gwenview moves the photo from the camera
memory by renaming them, but later I forgot which where moved.
Then I tought about a small script in python, but I stumbled upon my
ignorance on the way to do that.

PIL can find similar pictures. I was thinking to reduce the foto into gray
scale and resize them to same size, what algorithm should take place?
Is PIL able to compare 2 images?

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goto /dev/null
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