pHashPy

Python bindings for the pHash (perceptual hashing) library.

The project uses cppyy to create a small wrapper around pHash functions.

Features

Working:

Video hashing
Image hashing (dct & mh)

Missing:

Audio
Text

Usage

As a Command Line Tool

You can use the tool as a command line utility to generate a list of hashes from a list of files.

Run python -m pHashPy --help for more info.

As a Library

Import functions from the package's __init__, this will automatically load the required library files. If you import the functions from the individual py files, you must call helper.init yourself.

Background Info

For more info on pHash:

https://github.com/aetilius/pHash
https://www.phash.org/
https://www.phash.org/docs/design.html (Theory.)
https://www.phash.org/docs/howto.html (Help for developers, archived as DevelopmentGuide.md.)

Testing build manually

Using CentOS 7 (with docker container quay.io/pypa/manylinux2014_x86_64):

cd

yum install -y cmake3 libpng-devel libjpeg-turbo-devel libsamplerate-devel libsndfile-devel libtiff-devel libvdpau-devel libvorbis-devel
yum install -y epel-release

rpm -v --import http://li.nux.ro/download/nux/RPM-GPG-KEY-nux.ro
rpm -Uvh http://li.nux.ro/download/nux/dextop/el7/x86_64/nux-dextop-release-0-5.el7.nux.noarch.rpm
yum install -y ffmpeg-devel

git clone https://github.com/dries007/pHashPy.git
cd pHashPy
git submodule init
git submodule update

cd pHash

echo "include_directories(/usr/include/ffmpeg)" >> CMakeLists.txt
sed -i s/SHARED/STATIC/g CMakeLists.txt

mkdir build
cd build
cmake3 .. -DCMAKE_BUILD_TYPE=Release -DWITH_VIDEO_HASH=1 -DWITH_AUDIO_HASH=1
make -j

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