How to calculate number of circle detected

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raja gopal
raja gopal 2015-10-6
评论： Hitesh Kurapati 2015-12-4
i want to know how to calculate the number of detected circle(Red circle)
thank you :)
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raja gopal
raja gopal 2015-10-7
im sorry,still blank here :( i stil new in matlab. can you show example please
Hitesh Kurapati
Hitesh Kurapati 2015-12-4
how can i get number of circles in a image using viscircles() command? Help me. Thanks in advance.

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回答（1 个）

Walter Roberson
Walter Roberson 2015-10-7
.... 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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