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Use of Hough Transform on particular cases

asked 2013-05-01 09:36:10 -0500

Hey!

Before asking my question I would want to all thank you for the great job you do on this forum.

So I might need your help or your advices on something. I have images like below and I would want to have a program able to count and compute the radius of the spherulites. I try to use Hough Transform but it doesn't work very well. Maybe I have to apply a specific filter on my image or do something before use the Hough Transform (I try Gaussian filter and Bilinear filter) but still there is to much circles detected or zeros circles detected. Maybe the Hough transform has to receive specific parameters for each radius (because as you can see I have a wide range of radius on my picture).

If someone has an idea about this project, please let me know.

With kind regards,

Jean-Baptiste

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answered 2013-05-01 10:21:11 -0500

baila gravatar image

Hi Jean,

can you please try Blob detection? As it seems the objects are quite differentiable by their edges. So you could try Blob and after then you could find the COG (Centre of Gravity) and can prceed as per requirement.

This link may by helpful. Check it!

http://answers.opencv.org/question/4699/how-can-i-find-the-centroid-of-the-largest/

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Asked: 2013-05-01 09:36:10 -0500

Seen: 161 times

Last updated: May 01 '13