How to calculate number of circle detected

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i want to know how to calculate the number of detected circle(Red circle)
thank you :)
  10 Comments
raja gopal
raja gopal on 7 Oct 2015
im sorry,still blank here :( i stil new in matlab. can you show example please
Hitesh Kurapati
Hitesh Kurapati on 4 Dec 2015
how can i get number of circles in a image using viscircles() command? Help me. Thanks in advance.

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Answers (1)

Walter Roberson
Walter Roberson on 7 Oct 2015
.... you have a loop going on ...
.... you find some circles, and their coordinates are in X and Y and size in R)
%draw the circles
centers = [X(:), Y(:)];
viscircles(centers, R);
.... end of loop
would become
number_of_circles = 0;
.... you have a loop going on ...
.... you find some circles, and their coordinates are in X and Y and size in R)
%draw the circles
centers = [X(:), Y(:)];
viscircles(centers, R)
number_of_circles = number_of_circles + length(centers);
.... end of loop
That is, every time you draw a series of circles on the plot, add the number of circles just drawn to the running total.

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