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by luisfoliv
3366 days ago
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As mentioned in one reply to the parent comment, hashing here usually is not cryptographic. I'm familiar with location-sensitive hashing[1], which acts like a dimensionality reducer but, instead of receiving as input the image itself receives a feature vector extracted from it (or something analogous that allows for similarity assessment). [1] https://en.wikipedia.org/wiki/Locality-sensitive_hashing |
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