![0000 Screenshot.png](https://www.mathworks.com/matlabcentral/answers/uploaded_files/196254/0000%20Screenshot.png)
How to detect the circular object in the middle of this image?
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I have a binary image. I want to keep the circular object in the middle of the image and remove all other components. How can I do that?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/196246/image.jpeg)
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Accepted Answer
Image Analyst
on 23 Nov 2018
Simply mask the image. See attached m-file.
![0000 Screenshot.png](https://www.mathworks.com/matlabcentral/answers/uploaded_files/196254/0000%20Screenshot.png)
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Image Analyst
on 23 Nov 2018
I suggest using normxcorr2() to find the pattern. I attach an example.
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