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Code covered by the BSD License

FindCircle.m Ostu's rule is used for thresholding you can give your own threshold if
Hughcir.m defining max &min values for radius
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3.5 | 2 ratings Rate this file 102 Downloads (last 30 days) File Size: 2.05 KB File ID: #25044

Circle Detection

16 Aug 2009 (Updated 18 Sep 2009)

To detect circle in a gray scale image.

File Information
Description	This function detects a circle in any gray scale image by thesholding using Ostu's rule. The range of radius for detection of circle can be defined inside the function named Hughcir.m.
Required Products	Image Processing Toolbox
MATLAB release	MATLAB 7.4 (R2007a)

Tags for This File
Everyone's Tags	circle(2), hough transform(2), image processing, mathematics, self_rating, very good
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Comments and Ratings (4)
18 Sep 2009	Vineet	Please let me know if there are any bugs which i can resolve.
18 Sep 2009	Vineet
04 Oct 2009	hay	very good
07 Oct 2009	jayashree	really good

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Updates
18 Sep 2009	More explanation was added for the code. A bug was fixed for no circle in the image
18 Sep 2009	More explaination was added for the code and a bug was fixed for images containing no circles