How can I find the centroids of closely seperated object?
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In the left pannel, I have four obejct, they are close but separated. I am using the " regionprops( image ,'Area','BoundingBox', 'Centroid') but in return I am getting only one centriods. I need each object's centroids. Can you please help me with it?
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Accepted Answer
DGM
on 23 Aug 2021
Edited: DGM
on 23 Aug 2021
I'm going to go out on a limb here and guess that the image you're feeding to regionprops() is a numeric image instead of a logical image. If that's the case, it will assume that it's a label array (as from bwlabel()). From that assumption, it interprets all blobs as having the same label (label 1), treating them all as one object.
inpict = imread('4dot.png');
% if the image is numeric
inpict = im2double(inpict);
S = regionprops(inpict,'centroid');
C = vertcat(S.Centroid)
% if the image is logical
inpict = inpict>0.5;
S = regionprops(inpict,'centroid');
C = vertcat(S.Centroid)
4 Comments
DGM
on 23 Aug 2021
Given that OP is dividing the objects into two regions, I was under the impression that the half-object centroids was more important than the centroid of each round object.
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