Outer and inner contour of the image from the centroid
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Ivan Shorokhov
le 5 Jan 2015
Commenté : Image Analyst
le 5 Jan 2015
Hello everybody,
I have following image:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/146698/image.jpeg)
I would like to find the Outer and inner contour of the image from the centroid, for example as here:
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/146699/image.bmp)
I would appreciate any help!
Thanks in advance!
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Image Analyst
le 5 Jan 2015
Use bwconvhull() and then bwboundaries(). The outer is the boundaries of the convex hull. To get the inner, subtract or XOR the original from the convex hull, then call bwboundaries().
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