Cross Correlation in Matlab

How to find cross correlation coefficient between two 2D matrices?

Answer 1

[Cris LaPierre]

If you have the Signal Processing Toolbox, use xcorrr2.

[SOUVIK MITRA]

It gives matrix but I want to know about the correlation coefficient.

[Cris LaPierre]

It returns the autocorrelation matrix.

"The 2-D cross-correlation of an M-by-N matrix, X, and a P-by-Q matrix, H, is a matrix, C, of size M+P–1 by N+Q–1"

[SOUVIK MITRA]

Yes I know this, but is there any way to find normalised value for correlation matrix which gives me one value (like

xcorr(X,Y, lag, 'coeff')

this returns cross correlation coeff of two signals)