I am writing a project, I need to find out which of the images in folder 1 are modified (the first part of the second; one content, but 1,200x200, and 2,400x400) clones of the original images, until today, used the SURF method from EMGU CV (OpenCV) (but was removed because of a patent from EMGU) he found the same points on the images. Verification 500x40 (500 folder 1.40 folder 2) = 20,000 iterations took an hour and a half. How can I replace this process with minimal time loss?
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