An example of a simple way to search for an image?

Question

Node.js

Is there a working example of how to isolate and save the found images?
There is a set of treasure cards in the picture, how can you find the maximum number of these cards? https://i.imgur.com/L709BFz.jpg

This is how the cut region looks like https://i.imgur.com/xTHZvGj.jpg

Answer 1

We must go from simple. With openCV, this task can be solved in a couple of hours.
Use the difference correlator and go through all the pixels sequentially.
Or surf/sift, not sure if you can find multiple identical objects.
If the location of the regions does not change. Then just set the ROI and using the correlator, simply determine which class this or that area belongs to.