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MathGroup Archive 2006

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Re: Counting circles (digital image processing)

  • To: mathgroup at smc.vnet.net
  • Subject: [mg64463] Re: Counting circles (digital image processing)
  • From: "Jens-Peer Kuska" <kuska at informatik.uni-leipzig.de>
  • Date: Sat, 18 Feb 2006 02:49:47 -0500 (EST)
  • Organization: Uni Leipzig
  • References: <dt488e$2hk$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

label the connected components in the binarized image.
For the radius I would suggest to use a distance transform on
the binary image and the maximum value of the distance transform
in every single unconnected component is your radius

Regards
  Jens
"Alexander" <beginning.physst at mail.ru> schrieb im 
Newsbeitrag news:dt488e$2hk$1 at smc.vnet.net...
| Dear Mathgroup!
|
| Suppose we have a picture with a set of white 
circles on a black
| background.
| How can we count circles and measure their 
radius using mathematica
| system???
|
| Thanks for your answers!
| Alexander.
| 



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