I am fairly ignorant if this space. Do any of the standard methods use multiple ... | Hacker News

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jbmsf on Aug 6, 2021 | parent | context | favorite | on: The Problem with Perceptual Hashes

I am fairly ignorant if this space. Do any of the standard methods use multiple hash functions vs just one?

heavyset_go on Aug 6, 2021 | [–]

I've built products that utilize different phash algorithms at once, and it's entirely possible, and quite common, to get false positives across hashing algorithms.

jdavis703 on Aug 6, 2021 | [–]

Yes, I worked on such a product. Users had several hashing algorithms they could chose from, and the ability to create custom ones if they wanted.

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