My code for finding connected components in grayscale image is not working. Can anyone help me please?
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I have tried to implement an algorithm for finding connected components in grayscale image from the pdf inserted. Here is also the link: http://journals.dbuniversity.ac.in/ojs/index.php/AJET/article/view/270. But my code is not working, it is going to infinity loop. Can anyone please correct me? My code is :
clear all; clc;
I = imread('shadow9.jpg');
I1 = rgb2ycbcr(I);
Y = I1(:,:,1);
[r, c] = size(Y);
Out = zeros(r,c);
label = 0; j=0; count =0;
%calculating range
for i=1:255
pixel_range(i) = j;
count = count + 1;
if mod(count,16) == 0
j = j+1;
end
end
for i=1:r
for j=1:c
if Y(i,j)>=0
label = label + 1;
%getting range
pixel_int = ceil(Y(i,j));
if pixel_int == 0
val = 0;
else val = pixel_range(pixel_int);
end
stack = [i j];
while ~isempty(stack)
loc = stack(1,:); %getting top pixel
stack(1,:) = []; % removing first pixel row
%// get the 8 neighbouring locations
locxy = [loc(1),loc(2)+1; loc(1),loc(2)-1; loc(1)+1,loc(2); loc(1)-1,loc(2); loc(1)+1,loc(2)+1; loc(1)+1,loc(2)-1; loc(1)-1,loc(2)+1; loc(1)-1,loc(2)-1];
%mapping pixel range
for p=1:8
if(locxy(p,1)>0 && locxy(p,2)>0)
if(locxy(p,1)<=c && locxy(p,2)<=r)
pixel_int1 = ceil(Y(locxy(p,1),locxy(p,2)));
if pixel_int1 == 0
val1 = 0;
else val1 = pixel_range(pixel_int1);
end
if val == val1
stack = [stack; [locxy(p,1) locxy(p,2)]]; %Adding to stack
Y(locxy(p,1),locxy(p,2)) = -1;
Out(locxy(p,1),locxy(p,2)) = label;
end
end
end
end
end
end
end
end
B = label2rgb(Out);
figure(1); imshow(B);
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meli brilian
el 17 de Ag. de 2020
hello? have you find the solution of your problem? i have this problem too.. please let me know if you already find the solution. Thanks in advance
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