ITK/Examples/IO/ImageToVTKImageFilter

This example demonstrates how to display an itkImage on the screen using VTK.

DisplayAnImage.cxx

<source lang="cpp">

1. include <itkImage.h>
2. include <itkImageFileReader.h>

1. include <itkImageToVTKImageFilter.h>

1. include "vtkImageViewer.h"
2. include "vtkRenderWindowInteractor.h"
3. include "vtkSmartPointer.h"
4. include "vtkImageActor.h"
5. include "vtkInteractorStyleImage.h"
6. include "vtkRenderer.h"
7. include "itkRGBPixel.h"

int main(int argc, char *argv[]) {

 if( argc < 2 )
   {
   std::cerr << "Usage: " << std::endl;
   std::cerr << argv[0] << " inputImageFile" << std::endl;
   return EXIT_FAILURE;
   }

 typedef itk::Image<itk::RGBPixel<unsigned char>, 2> ImageType;
 typedef itk::ImageFileReader<ImageType>             ReaderType;
 typedef itk::ImageToVTKImageFilter<ImageType>       ConnectorType;

 ReaderType::Pointer reader = ReaderType::New();
 ConnectorType::Pointer connector = ConnectorType::New();

 reader->SetFileName(argv[1]);
 connector->SetInput(reader->GetOutput());
 
 vtkSmartPointer<vtkImageActor> actor =
   vtkSmartPointer<vtkImageActor>::New();
 actor->SetInput(connector->GetOutput());

 vtkSmartPointer<vtkRenderer> renderer =
   vtkSmartPointer<vtkRenderer>::New();
 renderer->AddActor(actor);
 renderer->ResetCamera();

 vtkSmartPointer<vtkRenderWindow> renderWindow =
   vtkSmartPointer<vtkRenderWindow>::New();
 renderWindow->AddRenderer(renderer);

 vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
   vtkSmartPointer<vtkRenderWindowInteractor>::New();
 vtkSmartPointer<vtkInteractorStyleImage> style =
   vtkSmartPointer<vtkInteractorStyleImage>::New();

 renderWindowInteractor->SetInteractorStyle(style);

 renderWindowInteractor->SetRenderWindow(renderWindow);
 renderWindowInteractor->Initialize();

 renderWindowInteractor->Start();
 
 return EXIT_SUCCESS;

} </source>

CMakeLists.txt

<source lang="cmake"> cmake_minimum_required(VERSION 2.6)

PROJECT(VTK) include_directories(/home/doriad/src/ITK/Wrapping/WrapITK/ExternalProjects/ItkVtkGlue/src/)

FIND_PACKAGE(VTK REQUIRED) INCLUDE(${VTK_USE_FILE})

FIND_PACKAGE(ITK REQUIRED) INCLUDE(${ITK_USE_FILE})

ADD_EXECUTABLE(DisplayAnImage DisplayAnImage.cxx) TARGET_LINK_LIBRARIES(VTK vtkHybrid ITKBasicFilters ITKCommon ITKIO )

</source>