results from vtkImageSeedConnectivity filter

Charles Law charles.law at kitware.com
Wed Dec 8 09:42:32 EST 1999


<x-flowed>Joy,

Here is an portion of the comment in vtkImageConnector:
...
// As implemented, only voxels which share faces are considered
// neighbors.
...

Most of the image connectivity filters use vtkImageConnector as a
helper object.  The only option now is face connectivity.  It could be
extended.

Charles.

At 02:32 PM 12/7/99 -0800, Joy P. Ku wrote:

>I am using vtkImageThreshold followed by vtkImageSeedConnectivity
>to segment my MR data set.  The results I get using this filter differ
>from the results I get using a seeded threshold filter in
>another program.  I believe that the problem could be that
>the vtkImageSeedConnectivity doesn't use the same connectivity
>criteria of the other program, which uses a 26-neighbor connectivity
>criteria.
>
>What is the connectivity criteria used by vtkImageSeedConnectivity? Are
>there other vtk function(s) or other parameters to set for
>vtkImageSeedConnectivity that would provide me with the functionality
>that I need?
>
>Joy
>
>
>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Joy P. Ku
>Electrical Engineering Dept.
>Stanford University
>
>office:  650-498-4976, P224 LabSurge             ,            ,
>email:   joyku at stanford.edu                      \_ at _      {)/
>URL:     http://www.stanford.edu/~joyku            \/\_._,<_/
>                                                  ,_/\     /_\
>Hope is hearing the music of the future.            /    /(,
>            Faith is dancing to it today.            ~   ~
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
>
>
>
>
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