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A comment on Convert Apple NeuralHash model for CSAM Detection to ONNX. Parent comment

Re:Convert Apple NeuralHash model for CSAM Detection to ONNX by varispeed on Wednesday August 18, 2021 @08:01AM (#28220021)
They are probably using https://en.wikipedia.org/wiki/Hamming_distance to have a leeway which again adds to a potential of having more false positives.
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Re:Convert Apple NeuralHash model for CSAM Detection to ONNX by heavyset_go on Wednesday August 18, 2021 @02:03PM (#28224888)
Yes, this and other distance metrics are what are used to do reverse and image similarity lookups with perceptual hashes.
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