How can I use " imfindcircles" ?

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Christine Ak
Christine Ak on 27 Nov 2013
Commented: Christine Ak on 27 Nov 2013
Hi every one :) I have the following Figure ,, I need to use the function " imfindcircles " but it gives me empty matrix Can any body help ??

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Accepted Answer

Wayne King
Wayne King on 27 Nov 2013
Edited: Wayne King on 27 Nov 2013
Hi Christine, you may want to increase the sensitivity a bit. Here, use the file I attach and run the following code.
im = imread('circle.png');
[centers1,radii1] = imfindcircles(im,[30 60],'ObjectPolarity','dark','Sensitivity',0.95);

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