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POCentroid of objects/connected components in matlab?
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copied!<p>I am trying to find centroid of objects. I have already implemented connected components labeling and I have developed following code for centroid, it does give result but does not gives correct result: I have following output matrix i.e matrix_img:</p> <pre><code> 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 2 2 2 2 0 0 0 0 0 1 1 1 1 1 1 0 2 2 2 2 0 0 0 0 1 1 1 1 1 1 1 1 2 2 2 2 0 0 0 0 1 1 1 1 1 1 1 1 2 2 2 2 0 0 0 0 1 1 1 1 1 1 1 1 2 2 2 2 0 0 0 0 0 1 1 1 1 1 1 0 2 2 2 2 0 0 0 0 0 0 1 1 1 1 0 0 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 2 2 2 2 0 0 5 5 5 0 0 0 0 0 0 0 2 2 2 2 0 0 5 5 5 0 0 0 0 0 0 0 2 2 2 2 0 0 5 5 5 0 0 0 0 0 0 0 2 2 2 2 0 0 0 0 0 0 0 0 0 0 0 0 </code></pre> <p>and following is the code</p> <pre><code>n= max(max(matrix_img)); for k=1:n a(k)=length(find(matrix_img==k)); sx(k)=0; sy(k)=0; cx=0; cy=0; for i=1:1:r for j=1:1:c if(matrix_img(i,j)==k) sx(k)=sx(k)+i; sy(k)=sy(k)+j; cx=sx(k)/a(k); cy=sy(k)/a(k); end end end fprintf('Centroid of Object %d is %d and %d \n', k, cx, cy); end </code></pre> <p>It gives result like :</p> <pre><code>Centroid of Object 1 is 7 and 1.250000e+001 Centroid of Object 2 is 1.050000e+001 and 2.500000e+000 Centroid of Object 3 is 0 and 0 Centroid of Object 4 is 0 and 0 Centroid of Object 5 is 14 and 8 </code></pre> <p>Object 5 result is correct, object 2 is completely wrong and object 1 is partially wrong.. what shall I do?</p>

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