PQD hash not integrated

[Constantinos Patsakis]

Hi there,

It looks like PQD hash has not been integrated yet in the code

[Fausto Morales]

Hi there! To use PDQ with perception, please do pip install pdqhash perception. Then you can do:

import perception.hashers.image.pdq as pdq

hasher = pdq.PDQHash()
url = "https://upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF.jpg/1024px-Mona_Lisa%2C_by_Leonardo_da_Vinci%2C_from_C2RMF.jpg"
hasher.compute(url) # zGOKbNjmSxkBvTyjOPNhyucZ7DmC5r7thkyKJ5t3QRY=

The reason you have to install pdqhash separately is that it builds from the ThreatExchange source during the installation, which requires users to have a working build configuration. And so the bindings for Python are implemented in pdqhash and then used by perception if that package is installed.

[timehaven]

Hi @kpatsakis. Closing this issue but please feel free to re-open if you still have problems.