normxcorrn

PURPOSE ^

Normalized n-dimensional cross-correlation.

SYNOPSIS ^

function C = normxcorrn( T, A, shape )

DESCRIPTION ^

 Normalized n-dimensional cross-correlation.

 For 2 dimensional inputs this function is exactly the same as normxcorr2, but also works
 in higher dimensions.   For more information see help on normxcorr2.m.  Also see Forsyth
 & Ponce 11.3.1 (p241).

 INPUTS:
   T           - template to correlate to each window in A, must be smaller than A
   A           - matrix to correlate T to
   shape       - [optional] 'valid', 'full', or 'same', see convn_fast help

 OUTPUTS
   C           - correlation matrix

 EXAMPLE
   T = filter_gauss_nD( [21 21], [], [], 0 )*100;  A = rand(100); 
   C1=normxcorrn(T,A);  C2=normxcorr2(T,A);  C3=xcorr2(A,T);
   C4=xcorrn(A,T); C4r = rot90( xcorrn(T,A),2 );
   C5=xeucn(A,T);  C5r = rot90( xeucn(T,A), 2 );
   show=1;
   figure(show); show=show+1; im(C1);   title('normxcorrn');
   figure(show); show=show+1; im(C2);   title('normxcorr2');
   figure(show); show=show+1; im(C3);   title('xcorr2');
   figure(show); show=show+1; im(C4);   title('xcorrn');
   figure(show); show=show+1; im(C4r);  title('xcorrn rev&rot');
   figure(show); show=show+1; im(-C5);  title('xeucn');
   figure(show); show=show+1; im(-C5r); title('xeucn rev&rot');

 DATESTAMP
   29-Sep-2005  2:00pm

 See also NORMXCORRN_FG, XEUCN, XCORRN

CROSS-REFERENCE INFORMATION ^

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