How to find peaks in matrix the rest are 0
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Hello
Im asking for help. It's more complicated than I know about matlab ...
for clarification and explanation I use excel....
I have a data matrix (see picture). I would like to find different peakses. Other values becomes 0 (see picture 2).
thank you so much for the help
Peter
1 Comment
Dyuman Joshi
on 10 Jun 2022
Please show proper data, without blue bubbles. Show the whole input data and the corresponding output data.
Accepted Answer
Dyuman Joshi
on 10 Jun 2022
Run a double for loop through all the elements
A = randi(50,7,11) %sample matrix
B=zeros(size(A));
for i=1:size(A,1)
for j=1:size(A,2)
M = zeros(size(A));
M(i,j) = 1;
if all(A(i,j)>A(conv2(M,[1,1,1;1,0,1;1,1,1],'same')>0)) %checking if A(i,j) is local maxima
B(i,j)=A(i,j);
end
end
end
B
2 Comments
More Answers (2)
pzaksek
on 11 Jun 2022
2 Comments
Dyuman Joshi
on 11 Jun 2022
Please ask this as another question. (MATLAB Answers etiquette) In that way, others can also help you incase I can't.
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