Labeling objects in an image using nearest neighbors
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I am trying to label all the objects in an image to analyze them and find their centroid. I am trying to do this without using the built in functions in matlab. I am trying to use the four nearest neighbors approach. Here is my code so far:
clc; clear all; close all;
SS = imread('star_sky.png');
SS2 = 0.2989 *SS(:,:,1)+0.5870*SS(:,:,2)+0.1140*SS(:,:,3);
threshold = 100;
SS3 = SS2 >= threshold;
[rows, cols] = size(SS3);
for M = 2 : R-1
for N = 2 : C-1
for k = 2:12
if SS4{M,N}=1
if (SS4(M-1, N)=1 && SS4(M, N-1)=0)
SS4(M,N)==SS4(M-1, N);
end
if (SS4(M-1, N)==0 && SS4(M, N-1)==1)
SS4(M,N)==SS4(M,N-1);
end
if (SS4(M-1,N)==1 && SS4(M, N-1)==1)
SS4(M,N)==SS4(M-1,N);
end
if (SS4(M-1, N)==0 && SS4(M, N-1)==0)
SS4(M,N) == k;
k;
end
end
end
end
end
Could someone help with why my code is not labeling the objects? Thanks!
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