images comparisson
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hello to all im trying to compare two (grayscale) patterns and to tell if they are somewhat alike. i read that likeness measure can be done by comparing the 2d-fft of the two images. if it’s true, can someone tell me how to do the transformation and how do you think is good to compare the two? thanks A LOT !
Noam.
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Sean de Wolski
2011-2-22
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What are you dealing with? If you're dealing with translation/rotation/scaling, FFT solutions are the way to go. If you just want a simple comparison you could use either the normalized cross correlation or the sum of the absolute differences...
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2011-2-22
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