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I need help with OpenCV to solve the following problem:

  1. I have some pictures of one place
  2. Each photo compare with the first
  3. in the photos except the first I need to draw the frames where there was a change

Can anyone advise me or recommend a prime example?

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That sounds like a job for background substraction.

BackgroundSubtractorMOG2 is the class you will probably want.

I have not used it myself, but here is a tutorial

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