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dmpetrov/imagehash_whash.py

Created March 6, 2017 04:39
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Wavelet imagehash for Lenna image
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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
@CyberShadow
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CyberShadow commented Jan 5, 2019 •
edited
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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.

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