% C = xcorr2 (A, B) % Compute the 2D cross-correlation of matrices A and B. % C = xcorr2 (A) % Compute two-dimensional autocorrelation of matrix A. % C = xcorr2 (..., 'scale') % biased - scales the raw cross-correlation by the maximum number % of elements of A and B involved in the generation of % any element of C % unbiased - scales the raw correlation by dividing each element % in the cross-correlation matrix by the number of % products A and B used to generate that element % coeff - normalizes the sequence so that the largest % cross-correlation element is identically 1.0. % none - no scaling (this is the default).

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