Finding a 2d block with highest average inside a 2d window
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Consider a matrix A(52,34) How to find out which 2d block size(3,3) has the highest average in it
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Walter Roberson
2018-3-1
[~, idx] = max(conv2(A, ones(3,3),'same'))
[r, c] = ind2sub(size(A), idx);
r and c is now the index of the center of the block that had the highest average.
2 个评论
Walter Roberson
2018-3-2
[~, idx] = max( reshape(conv2(A, ones(3,3),'same'), [], 1) );
[r, c] = ind2sub(size(A), idx);
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