[Insight-users] Re: VTK Render error in running GeodesicActiveContour

[Luis Ibanez]

Hi Yang,

This application expects to receive 3D images as input.
To be more precise, the input images must have at least
4 pixels along every dimension, and probably will only
produce good results for images of at least 10 pixels
along every dimension.

The CVS version of these applications have been modified
in order to provide an informative error message instead
of crashing when you load 2D images or images without
enough pixels.

You may want to try this demo applications with the
3D brain images from the BrainWeb project, that are
available in our FTP site. Instructions are provided
in the "Data" link of www.itk.org

       http://www.itk.org/HTML/Data.htm

The following email posted to the list on April 2004
provides a step by step guide on how to use this
demo application for segmenting the ventricles :

http://www.itk.org/pipermail/insight-users/2004-April/007770.html


Also, the VTK rendering in these demo applications is
not functional at this point.  It requires a tunning in
the definition of the transfer functions. If you feel
adventurous, you may want to give it a shot to select
better values for the transfer functions.


Please let us know if you find further problems.


Regards,


   Luis


-------------------
Yang Wang wrote:

> Dear Luiz and Itk users,
> 
> I met some problem when running GeodesicActiveContour from
> InsightApplication.
> 
> I loaded the image file "VisibleWomanRightEyeRGB.mhd" into the
> program, everything works fine, the fltk image viewers are displaying
> corresponding images correctly. However, when I press the "VTK
> Render" button, only a blank frame pops up with white background,
> nothing shows up in that window even after quite some time. And one
> error message is in the command line, saying "Xlib: extension "XFree
> 86-DRI" missing on display ":0.0"."
> 
> Dont know whats going wrong with this. Please help. Thanks.
> 
> Yours,
> Casper
> 
>