M-File Help: zssd | View code for zssd |
Sum of squared differences
m = zssd(i1, i2) is the zero-mean sum of squared differences between the two equally sized image patches i1 and i2. The result m is a scalar that indicates image similarity, a value of 0 indicates identical pixel patterns and is increasingly positive as image dissimilarity increases.
sdd, sad, ncc, isimilarity
© 1990-2012 Peter Corke.