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How to apply distance transform on labelled matrix

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Rizwan Khan
Rizwan Khan 2020-7-17
评论： Rizwan Khan 2020-7-21
I have got a labelled matrix and want to apply distance tranform on the diffent different labels in the matrix. How can it be done in matlab?
Thanks
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回答（1 个）

Anmol Dhiman
Anmol Dhiman 2020-7-20
Hi Rizwan,
I am assuming the matrix as binary. You can refer to Distance Transform of a Binary Image.
Regrds,
Anmol Dhiman
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Image Analyst
Image Analyst 2020-7-20
That's why it doesn't make sense. Why on earth would you even want to try to do a distance transform on a labeled image? What would even be the formula for distance in that case? And what would he do with the result? I think this is a case of a user thinking he wants something, but he really doesn't want that, he just doesn't know it yet.
Rizwan Khan
Rizwan Khan 2020-7-21
Dear Image Analyst,
This is the flowchart which i need to implement in matalb.
CC = bwconncomp(B,8);
L = labelmatrix(CC);
num = max(L(:));
D = zeros(size(B));
for iter = 1:Inf % loop for new regions
for j= 1:num
[r,c] = find(L==j);
for k = 1:size(r,1)
D = my_dist(B(r(k,1),c(k,1)));
end
L = watershed(D);
num1(j) = max(L(:));
end
num = sum(num1);
if abs(num(iter+1)-num(iter)) == 0
break
end
end

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