Not what you asked for, but related to the method you described: "Image Retrieval Based on Using Hamming Distance" https://www.sciencedirect.com/science/artic

Not what you asked for, but related to the method you described: "Image Retrieval Based on Using Hamming Distance" https://www.sciencedirect.com/science/article/pii/S1877050915035012 https://www.sciencedirect.com/science/article/pii/S187705091... EDIT: Here's a python package that does image deduplication. Not ImageMagick and no idea on its performance though. https://idealo.github.io/imagededup/ https://idealo.github.io/imagededup/