Blockhash or perceptual hash?

[eeerrrttty]

which algorithimn is used here? Because by

https://content-blockchain.org/research/testing-different-image-hash-functions/

We have two TYPES OF ALG. --->

BLOCKHASH - PERCEPTUAL HASH

ok, the name of this repo is blockhash-js, which one may think it is a blockhash based alg. But in the description it says "This is a perceptual image hash", which one may think it is a perceptual hash. (Of course, all both are for perception diff.)

But which of these two is the alg. used here? (Need some clarification on docs, because i got confused)

[artfwo]

@eeerrrttty blockhash is a particular implementation of perceptual hashing. The latter term can apply to any algorithm that calculates fingerprints for various kinds of digital media. The blockhash implementation referenced in the article is https://github.com/commonsmachinery/blockhash-python, which is basically identical to this library (algorithm-wise). Does this answer your question?