[vtkusers] Traversing an Image

[Mehdi Esteghamatian]

  Hi Dears,

I have a folder of dicom images representing a 3D volume. I would like 
to traverse the image and compare it with another image who has the same 
size. I just want to subtract two images. I have tried vtkImageIterate 
but seems I do not have it on my VTK5.  I am using vtk5.0 but not 
vtk5.6. Please let me know how it is done conventionally on VTK5.0.

Regards,
Mehdi
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