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Project Description

A image hashing library written in Python. ImageHash supports:

  • average hashing (aHash)
  • perception hashing (pHash)
  • difference hashing (dHash)
  • wavelet hashing (wHash)

Requirements

Based on PIL/Pillow Image, numpy and scipy.fftpack (for pHash) Easy installation through pypi.

Basic usage

>>> from PIL import Image
>>> import imagehash
>>> hash = imagehash.average_hash(Image.open('test.png'))
>>> print(hash)
d879f8f89b1bbf
>>> otherhash = imagehash.average_hash(Image.open('other.bmp'))
>>> print(otherhash)
ffff3720200ffff
>>> print(hash == otherhash)
False
>>> print(hash - otherhash)
36

The demo script find_similar_images illustrates how to find similar images in a directory.

Source hosted at github: https://github.com/JohannesBuchner/imagehash

Changelog

  • 3.2: whash now also handles smaller-than-hash images
  • 3.0: dhash had a bug: It computed pixel differences vertically, not horizontally.
    I modified it to follow dHash. The old function is available as dhash_vertical.
  • 2.0: added whash
  • 1.0: initial ahash, dhash, phash implementations.
Release History

Release History

3.4

This version

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3.3

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3.2

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3.1

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3.0

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2.2

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2.1

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2.0

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1.0

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0.3

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0.2

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0.1

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Download Files

Download Files

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File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
ImageHash-3.4-py2.7.egg (299.9 kB) Copy SHA256 Checksum SHA256 2.7 Egg Feb 10, 2017
ImageHash-3.4-py3.4.egg (300.5 kB) Copy SHA256 Checksum SHA256 3.4 Egg Feb 10, 2017
ImageHash-3.4.tar.gz (290.9 kB) Copy SHA256 Checksum SHA256 Source Feb 10, 2017

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