phash: Haskell bindings to pHash, the open source perceptual hash library
PHash is a library for generating perceptual hashes of media files. These
bindings currently only support images. You can compare these hashes to detect
visually similar images.
Installation Notes
Note that this library does not come bundled with the source code for pHash.
You must install that yourself. Your package manager may have it available as
libphash. If that is not available, you can install it from source from
http://phash.org.
Usage
import Data.PHash
main = do
Just h1 = imageHash "somefile.jpg"
print h1
print =<< imagesSimilar "somefile.jpg" "similarfile.jpg" reasonableThreshold
where reasonableThreshold = 15
Credit
All credit goes to the original pHash authors. For more information about pHash
visit http://phash.org