Hashes are supposed to change a lot with small changes in the data source. I wou... | Hacker News

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		ktzar on Aug 8, 2014 \| parent \| context \| favorite \| on: Perceptual Image Hashing Hashes are supposed to change a lot with small changes in the data source. I wouldn't call this hashing, but fingerprinting, and there're plenty of fingerprinting algorithms for images, some related to steganography.

ahknight on Aug 9, 2014 [–]

A cryptographic hash, yes. Not all hashes are cryptographic hashes.

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