function B = BoundMirrorShrink(A)% Shrink the matrix to remove the padded mirror boundaries%% for example %% A = [%     5  4  5  6  12  6%     2  1  2  3  11  3%     5  4  5  6  12  6 %     8  7  8  9  13  9 %     5  4  5  6  12  6%     ]% % B = BoundMirrorShrink(A) will yield%%     1  2  3  11%     4  5  6  12%     7  8  9  13% Chenyang Xu and Jerry L. Prince, 9/9/1999% http://iacl.ece.jhu.edu/projects/gvf[m,n] = size(A);yi = 2:m-1;xi = 2:n-1;B = A(yi,xi);