Circle detection from Irregular arcs.

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Ayush Upadhyay
Ayush Upadhyay el 1 de Jun. de 2011
Hi, I need to detect circles (crater mouths) from the following image at http://imageshack.us/photo/my-images/268/moonps.jpg/ The partial arcs are crater mouths. IS there any way to detect the circles and find its radius in MATLAB?
I would be very obliged for the help.
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Ayush Upadhyay
Ayush Upadhyay el 1 de Jun. de 2011
Alternative LInk to Image. http://imageshack.us/photo/my-images/97/moonps.jpg/

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David Young
David Young el 1 de Jun. de 2011
This looks quite difficult, because the circles are not very circular. You could try the various Hough transforms for circles that are available on the file exchange though.

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