blockhash
This is a perceptual image hash calculation tool based on algorithm descibed in Block Mean Value Based Image Perceptual Hashing by Bian Yang, Fan Gu and Xiamu Niu.
Build and install
Blockhash requires libmagickwand. On Debian/Ubuntu it can be installed using the following command:
sudo apt-get install libmagickwand-dev
On Fedora and friends:
sudo dnf install ImageMagick-devel
To build blockhash cd to the source directory and type:
./waf configure
./waf
The program binary will land in ./build. To install it to /usr/local/bin/ type:
./waf install
Usage
Run blockhash [list of images] for calculating hashes.
Run blockhash --help for the list of options.
License
Copyright 2014 Commons Machinery http://commonsmachinery.se/
Distributed under an MIT license, please see LICENSE in the top dir.
Contact: dev@commonsmachinery.se
Why to fork
Here is the features I needed in my pet project:
-
Dynamic library instead of executive file
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Hash a raw RGBA values array, not file
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As few dependencies as possible
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Proper signature declarations for P/Invoke
I've read the code and found it's pretty easy to achieve.