[Insight-users] Connect VTK and ITK

[Yan Yang]

Dear all,

I got a problem about connecting ITK and VTK. I can successfully convert vtkImageData to itk image data, but I can't convert the registered itk image into vtkImageData format. There is no problem with the input to itk::VTKImageExport, because I can write a png file with caster->GetOutput().
I would be grateful if you could take a look at my code.

Kind regards,

Yan
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#include "vtkImageExport.h"
#include "vtkImageImport.h"
#include "vtkTransform.h"
#include "itkVTKImageImport.h"
#include "itkVTKImageExport.h"
#include "vtkITKUtility.h"
......

  typedef itk::VTKImageExport< OutputImageType > ImageExportType; 

  ImageExportType::Pointer registeredItkExporter = ImageExportType::New();
  registeredItkExporter->SetInput( caster->GetOutput() );
  
  registeredItkExporter->Update();

  vtkImageImport *registeredVtkImporter = vtkImageImport::New();
  ConnectPipelines(registeredItkExporter, registeredVtkImporter);
  registeredVtkImporter->Update();

  this->RegisteredImage = registeredVtkImporter->GetOutput();
   

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