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How to find the exact index(row, col) of a maximum value in a matrix?

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I want to find the maximum value in an image, I tried to find its index and I found it after converting the image matrix into a vector. How can I find this value in a matrix? and then plot it over an image?

Accepted Answer

KSSV on 1 Aug 2020
Let I be your image.
[m,n,p] = size(I) ;
x = 1:n ;
y = 1:m ;
[X,Y] = meshgrid(x,y) ;
[val,idx] = max(I(:)) ;
hold on

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