https://github.com/clunietp/libgmsd
libgmsd is a portable C library and command-line tool for full-reference image quality assessment.
libgmsd is an implementation of the Gradient Magnitude Similarity Deviation (GMSD) algorithm by Xue, Zhang, Mou, and Bovik. http://www4.comp.polyu.edu.hk/~cslzhang/IQA/GMSD/GMSD.htm
- Cross-platform; tested MSVC17, GCC 4.6, Clang 5
- Efficient: ~12ms MSVC 15.8, ~6.5ms gcc -o3 (cygwin); 512x384 grayscale input on Core i5-4210U @ 1.7GHz
- No external dependencies
- Unit tested, valgrind clean
- Permissive license (MIT)
- Library: see
include/libgmsd.h - Command line:
gmsd.exe "path/to/file1.bmp" "path/to/file2.bmp"- Input: 24BPP BMP; Output: GMSD value
- Win32 command line binary: https://github.com/clunietp/libgmsd/raw/master/gmsd_win32.zip
- Tests:
./gmsd_tests
- MSVC 2017
- gcc 4.6
- clang 5
- Tests/benchmark included in
/test/
http://www4.comp.polyu.edu.hk/~cslzhang/IQA/GMSD/GMSD.htm , Gradient Magnitude Similarity Deviation: A Highly Efficient Perceptual Image Quality Index by Xue, Zhang, Mou, Bovik
https://github.com/chazomaticus/libbmpread , tiny, fast bitmap (.bmp) image file loader by Charles Lindsay. Libbmpread is used in the test and command line apps for bmp input.