How to identify the disk edge?
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How can MATLAB determine the radius of the disk? (imagine the center is known)
I know that if the whole circle is visible, I can use imfindcircle or other methods to determine the center and radius, but I wonder whether MATLAB can determine the edge of the radius for such an image?
Thanks
Steven
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Image Analyst
il 17 Mar 2014
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Image Analyst
il 17 Mar 2014
First segment based on threshold
binaryImage = grayImage < 128; % or whatever value works.
Then get rid of small noise particles
binaryImage = bwareaopen(binaryImage, 10000);
Then call bwboundaries
boundaries = bwboundaries(binaryimage);
Then do the fit as per the FAQ.
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