How to find peaks in matrix the rest are 0
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pzaksek
el 10 de Jun. de 2022
Comentada: pzaksek
el 11 de Jun. de 2022
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 comentario
Dyuman Joshi
el 10 de Jun. de 2022
Please show proper data, without blue bubbles. Show the whole input data and the corresponding output data.
Respuesta aceptada
Dyuman Joshi
el 10 de Jun. de 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
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pzaksek
el 11 de Jun. de 2022
2 comentarios
Dyuman Joshi
el 11 de Jun. de 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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