Description: the image signature is a good descriptor for sparse signals, which support can be approximately recovered using extremely simple operations.
The MATLAB scripts for benchmarking of image signature
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File list (Check if you may need any files):
signatureSal
............\default_signature_param.m
............\heatmap_overlay.m
............\mynorm.m
............\README.txt
............\rgb2dkl.m
............\samplepics
............\..........\1.jpg
............\..........\2.jpg
............\..........\3.jpg
............\..........\4.jpg
............\..........\5.jpg
............\show_imgnmap2.m
............\sigdemo.m
............\signatureSal.m
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