Another example of this sort of hash function (where the hamming distance between the hashes of similar inputs will be small) is pHash[1]. I've been playing wit

Another example of this sort of hash function (where the hamming distance between the hashes of similar inputs will be small) is pHash[1]. I've been playing with it recently for deduping bit-different but perceptually-identical images, and it works pretty well and the low hamming distance property makes it dead simple to use. --- [1] https://www.phash.org/ https://www.phash.org/