images comparisson
8 views (last 30 days)
Show older comments
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.
0 Comments
Answers (1)
Sean de Wolski
on 22 Feb 2011
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...
See Also
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!