how to plot centroids of objects? and how to find mid point between them?

Question

Rujal 2016-2-7

0
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https://ww2.mathworks.cn/matlabcentral/answers/266951-how-to-plot-centroids-of-objects-and-how-to-find-mid-point-between-them

回答： Image Analyst 2016-2-7

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hello friends,

I want to find centroids of the only connected component objects of binary image.

I have used code is :

 if true
 figure()
imshow(D);
[L Ne]=bwlabel(D,8);
%%Measure properties of image regions
propied=regionprops(L,'BoundingBox');
hold on
%%Plot Bounding Box
for n=1:size(propied,1)
    rectangle('Position',propied(n).BoundingBox,'EdgeColor','g','LineWidth',2)
    s = regionprops(D,'centroid');
    centroids = cat(1,s.Centroid);
      hold on
    plot(centroids(:,1),centroids(:,2), 'b*')
hold off
end
  end
The result is :

after that I have found mid point between two centroids.

for that I have used mid= mean(centroids); plot(mid(:,1),'r*');

The result is :

But its give the mid point of two corner points which is unwanted. how to remove the centroids from the corner points? I want to find mid point between two objects. I would be thankful if somebody helps me to solve this issue.