[Insight-users] Re: watershed segmentation question

Luis Ibanez luis.ibanez at kitware.com
Thu, 19 Feb 2004 16:37:39 -0500


Neha,

Please do your homework:

   Read the section on Watersheds
   in the Software Guide and run
   the watershed examples in the
   directory:

   Insight/Examples/Segmentation


Let us know if you have questions
after you do this.


Thanks


   Luis


---------------------------------

neha k wrote:

> Thanks Luis.
> If the original image does not have regions-segments with closed 
> boundaries(cracks in the basins), then how does this filter work? Will 
> it still lebel those regions correctly?
> 
> */Luis Ibanez <luis.ibanez at kitware.com>/* wrote:
> 
>     Hi Neha,
> 
>     The watershed algorithm does not generate boundaries
>     it directly label regions that are the water basins.
> 
>     You will find a description of the algorithm in the
>     software guide
> 
>     http://www.itk.org/ItkSoftwareGuide.pdf
> 
> 
>     Section 9.2, pdf-page 356.
> 
> 
>     Regards,
> 
> 
>     Luis
> 
> 
>     --------------
>     neha k wrote:
> 
>      > Hi All,
>      >
>      > When watershed segmentation filter generates the output, does it
>     creates
>      > the continous boundaries for all regions in the image, if there
>     are NO
>      > closed regions in input image?
>      >
>      > If yes, how is it done?
>      >
>      > Neha
>      >
>      >
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