• XPost3000@lemmy.ml
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      1 year ago

      Nah, flipping the image would completely bypass a simple hash map

      From my very limited understanding it’s some special hash function that’s still irreversible but correlates more closely with the material in question, so an AI trained on those hashes would be able to detect similar images because they’d have similar hashes, I think

      • could you provide a source for this? that spunds very counterintuive and bad for the hash functions. especially as the whole point of AI training in this case is detecting new images. And say a small boy at the beach wearing speedos has a lot of similiarity to a naked boy. So looking by some resemblance in the hash function would require the hashes to practically be reversible.

        • twelvefloatinghands@lemmy.world
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          1 year ago

          Not all hashes are for security. They’re called perceptual hashes

          Probably a case of definitional drift of the word, because it probably should be just for the security kind.