Usefulness of a (possibly) new 'spotter' algorithm

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Hi all, I have a question regarding the usefulness of something I’ve stumbled upon. I’m wondering what the answers to the following questions would be regarding the below capability:

  1. Is the following of any use?
  2. If so, is it already a solved problem?
  3. If not, what would the uses be?

The capability is, given an image of a somewhat, but not quite, ‘repeating’ pattern (e.g. picture of a galaxy, picture of asphalt, picture of linoleum), choose one feature to focus on and immediately see all similar features, with everything else blurred out into the background.

Even if the answer is that it’s useless/already done, I’d much appreciate any pointers to existing implementations/ideas/literature regarding this.

If my explanation was not clear, I’m happy to provide images showing what I mean. It’s just that each one takes a lot of time to create at the moment.

Thanks for reading.

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I should note: the reason I ask here is that I once used OpenCV as an undergraduate and I’m not aware of a more general computer vision/image processing place on the web to ask.

Please tell me where to go instead if this isn’t the place for such questions.

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You are welcome to show images