a script that uses perceptual hashing (pHash) to find all the duplicated images in a directory and delete them

delete_duplicate_images.py

#!/usr/bin/env python3

'''
find all the duplicated images in the current directory using perceptual hashing and delete them

to install dependencies
$ pip install imagehash Pillow

usage: ./delete_duplicate_images.py [directory containing the images]
'''

import sys
from pathlib import Path

from imagehash import phash
from PIL import Image

directory = Path(sys.argv[1] if len(sys.argv) > 1 else ".")

seen_hashes = {}
for filename in directory.iterdir():
    try:
        hash_ = phash(Image.open(filename))

        if hash_ in seen_hashes:
            print('deleting {}, it\'s the same as {}'.format(filename, seen_hashes[hash_]))
            filename.unlink()
        else:
            seen_hashes[hash_] = filename

    except OSError:
        continue # skip files that can't be opened as images
else:
    print('no images found in {}'.format(directory.absolute()))