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I know this topic is not clearly relevant to the forum, but I think it's fun and interesting.

I'm looking for computer vision riddles - fun and interesting questions that have a clear and precise solution. For example the following: We have a binary image with paths (contours) that are one pixel wide. Come up with an algorithm to find the ends of the paths. I know of two solutions to this riddle.

Do you know of any other riddles? I'll be happy to hear some!

Thanks,

Gil.

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closed as too broad by Paul R, jojek, Phonon Jun 2 '14 at 18:22

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

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Nice idea :)

A few years ago, the Instagram team proposed the Unshredder challenge. The chalélenge is over now, but the game is still interesting and could be extended to more difficult puzzles.

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