Maximising Pixels within Certain area of Matrix
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Hi Everyone,
I'd like to loop through a matrix (128x128) and find the area (Lets say 5x5 Pixels) with the highest pixel values.
What is the best way to do this?
Thanks!
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Guillaume
2018 年 7 月 13 日
編集済み: Guillaume
2018 年 7 月 13 日
One whose sum of pixel values is the greatest
Convolve your matrix with an array of 1 the same size as the area. The location of the maximum of the convolution is the centre of the area with the highest sum:
areasum = conv2(yourmatrix, ones(5)), 'same');
[~, idx] = max(areasum);
[centrerow, centrecol] = ind2sub(size(yourmatrix), idx)
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