Missing IterationData in vtkImageIterateFilter::IterationData
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
The first and last IterationData image data (IterationData[0] and IterationData[num]) in vtkImageIterateFilter are missing (set to NULL at all time). In VTKv5, those were set to the input and output images (in RequestInformation) respectively.
https://github.com/Kitware/VTK/blob/master/Imaging/Core/vtkImageIterateFilter.cxx#L258