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<p class=MsoNormal><span lang=EN-GB>Hi all,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB>I’ve recently started working with
ITK+VTK in Python and this is my problem: <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB>I am registering two images and I would
like to visualize the checkerboard of the result. I managed to do that with
ITK, but I would like to try it also on VTK (using vtkImageCheckerboard). <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB>I thought I should do something as written
below (where my “fixedCast.GetOutput()” and “outputCast.GetOutput()”
are the fixed and the moving image after registration, resampling and casting
to the output type).<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:black'>connectorFixed =
itk.ImageToVTKImageFilter[OutputImageType].New()</span><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:black'>connectorMoving
= itk.ImageToVTKImageFilter[OutputImageType].New()</span><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:black'>connectorFixed.SetInput(
fixedCast.GetOutput() )</span><span lang=EN-GB style='font-size:10.0pt;
font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:black'>connectorMoving.SetInput(
outputCast.GetOutput() )</span><span lang=EN-GB style='font-size:10.0pt;
font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:black'>checker =
vtk.vtkImageCheckerboard()</span><span lang=EN-GB style='font-size:10.0pt;
font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New"'><o:p> </o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span lang=EN-GB
style='font-size:10.0pt;font-family:"Courier New";color:black'>checker.SetInput1(connectorFixed.GetOutput())</span><span
lang=EN-GB style='font-size:10.0pt;font-family:"Courier New"'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Courier New";
color:black'>checker.SetInput2(connectorMoving.GetOutput())<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB style='font-size:10.0pt;font-family:"Courier New";
color:black'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB>However, I’m not getting any results.
When I try to render the image, a window opens but right afterwards I get an
error message that python.exe stops working. I tried writing the result on a
file, but the file was not created, although I didn’t get any errors.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB>Another related question: is it possible to
change the number of squares of the checkerboard in ITK? I tried to search for
this but I couldn’t find anything.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB>Thanks in advance.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB>Regards,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-GB><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-GB>Rita<o:p></o:p></span></p>
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