Wavelet imagehash for Lenna image

imagehash_whash.py

# Code for the blogpost https://fullstackml.com/2016/07/02/wavelet-image-hash-in-python/
import PIL
from PIL import Image
import imagehash

w = imagehash.whash(PIL.Image.open(‘lenna.png’))
w1 = imagehash.whash(PIL.Image.open(‘lenna1.jpg’))
w2 = imagehash.whash(PIL.Image.open(‘lenna2.jpg’))

(w — w1)/len(w.hash)**2
# > 0.03125

(w — w2)/len(w.hash)**2
# > 0.28125

FYI, the code seems to have been smartypants'd OSLT (Unicode quotes, dashes and whitespace instead of ASCII characters).

Fixed:

# Code for the blogpost https://fullstackml.com/2016/07/02/wavelet-image-hash-in-python/
import PIL
from PIL import Image
import imagehash

w = imagehash.whash(PIL.Image.open('lenna.png'))
w1 = imagehash.whash(PIL.Image.open('lenna1.jpg'))
w2 = imagehash.whash(PIL.Image.open('lenna2.jpg'))

(w - w1)/len(w.hash)**2
# > 0.03125

(w - w2)/len(w.hash)**2
# > 0.28125

Thanks for the article.