How to search a given radius circle by hough transform ?

Search for a given radius in a binary contour image. The function returns the accumulator array which will be two dimensional.

Answer 1

[Vandana Rajan]

Hi,

The MATLAB function 'imfindcircles' finds circles (using circular Hough transform) in an image whose radii are approximately equal to the specified radius.

http://in.mathworks.com/help/images/ref/imfindcircles.html