4 ms·
But even a single pixel being one shade brighter would make one hash completely different, that's the point of hashes.
by ClassyJacket 4y ago
But even a single pixel being one shade brighter would make one hash completely different, that's the point of hashes.
- fjkdlsjflkds 4y agoYou're probably confusing "cryptographic hash functions" with "perceptual hashing" (or other forms of "locality-sensitive hashing"). In the case of the latter, what you say is almost always not true (that's the point of using "perceptual hashing" after all: similar objects get mapped to similar/same hash). See: https://en.wikipedia.org/wiki/Perceptual_hashing https://en.wikipedia.org/wiki/Perceptual_hashing