[vtkusers] vtkContourFilter, vtkFeatureEdges, thresholding.

[Atwood, Robert C]

To me that sounds like a job for ITK connected components , though so
far I've not done the VTK<->ITK it should not be too difficult? 
 

> -----Original Message-----
> From: vtkusers-bounces+r.atwood=imperial.ac.uk at vtk.org 
> [mailto:vtkusers-bounces+r.atwood=imperial.ac.uk at vtk.org] On 
> Behalf Of Luca Pamparana
> Sent: 06 August 2007 14:08
> To: vtkusers
> Subject: [vtkusers] vtkContourFilter, vtkFeatureEdges, thresholding.
> 
> Hello all,
> 
> I have been trying to do this for some time now but with no luck.
> 
> What I need to do is extract regions (actually the outline of 
> regions) within an input 3D image. I have a very simple 
> scenario. I have a binary image with the background being set 
> to 0 and the foreground shapes (there can be more than one 
> shape on a slice) set to 1. Now what I want to do is get (in 
> an ideal case) a closed array of the outline points for these 
> shapes. I have looked at various vtk filters like 
> vtkContourFilter, vtkFeatureEdges etc. What I cannot figure 
> out is whether they can handle such multiple shapes and how I 
> can get such arrays out of the filtered output. 
> 
> I would really appreciate it if someone can help me out with 
> this as I have spend quite a few days without much luck :(
> 
> Thanks,
> 
> Luca 
>