If a matrix contains 1's and 0's ,i would like to get only those 1's and want to take avg values of those corresponding intensity values
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senthil vadivu
le 20 Nov 2016
Réponse apportée : Image Analyst
le 20 Nov 2016
If a matrix contains 1's and 0's ,i would like to get only those 1's and want to take avg values of those corresponding intensity values
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Jan
le 20 Nov 2016
Which intensity values? The average of the ones in a matrix is 1.0, so what is "corresponding" here?
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KSSV
le 20 Nov 2016
Let a be your vector which have 0 and 1.
% get indices of 1
idx = a(a==1);
Let b be your intensity values corresponding to a.
% extract inentisity values of positions 1
b_1 = b(idx);
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Image Analyst
le 20 Nov 2016
If matrix1 is your matrix of 0's and 1's, and matrix2 is your intensity matrix, you can get the mean intensity of matrix2 only where the values of matrix1 are 1 like this:
theMean = mean(matrix2(matrix1));
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