how to detect circle or anyother shape in an image.

<a href="http://tinypic.com?ref=2be5va"

Please check this image. Is it possible to count the number of drops present?

Answer 1

[Image Analyst]

I can't see the image. Are you sure the link is correct? In general, to find circles, use imfindcircle(). There is a demo in the help:

Measuring the Radius of a Roll of Tape

This example shows how to measure the radius of a roll of tape, which is partially obscured by the tape dispenser. Utilize imfindcircles to accomplish this task

[Sivakumaran Chandrasekaran]

here is the link. please check it

http://tinypic.com/r/nz3mn6/6

[Image Analyst]

Can you also supply me with your imfindcircle() code so I can run it? Since you're a MATLAB instructor developing a course for your students, why not just use the demos already in MATLAB to illustrate the concepts to your students? Why develop new ones, or ask us to?

Answer 2

[Elad]

See if this example using imfindcircles() helps:

http://imageprocessingblog.com/detecting-and-counting-objects-with-circular-features/