[Insight-users] Region extraction from watershed segmentation output

[Luis Ibanez]

Hi Sebastien,


1) Yes, you could simply use the

           itkBinaryThresholdImageFilter

    and set the threshold values to match
    the label that you want to extract.


2)  Once you extract that label,
     you could generate a surface by
     converting the image to vtkImageData
     and using the vtkContourFilter.

See examples in

InsightApplications/Auxiliary/vtk/
                       ExtractIsoSurface.cxx



     Regards,


           Luis



---------------------------------------------------------
2010/10/7 Sébastien Wilfart <swilfart at gmail.com>

> Hi!
>
> I would like to extract a specific region from the ouput of a watershed
> segmentation. The output of the segmentation filter is a labeled image where
> each pixel is assigned an unsigned long integer label that groups it within
> a connected region.
>
> 1) Is it possible to get the label corresponding to a specific region (for
> example, by specifiying a pixel belonging to the region of interest) ?
>
> 2) Is it possible to extract the surface corresponding to a specific region
> (for example, by specifying the region's label) ?
>
> Thanks for your help
>
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