Display ITK Image#
Synopsis#
Display an ITK iamge.
Results#
Note
Help Wanted Implementation of Results for sphinx examples containing this message. Reconfiguration of CMakeList.txt may be necessary. Write An Example <https://itk.org/ITKExamples/Documentation/Contribute/WriteANewExample.html>
Code#
C++#
#include <itkImage.h>
#include <itkImageFileReader.h>
#include <itkImageToVTKImageFilter.h>
#include "vtkVersion.h"
#include "vtkImageViewer.h"
#include "vtkImageMapper3D.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkSmartPointer.h"
#include "vtkImageActor.h"
#include "vtkInteractorStyleImage.h"
#include "vtkRenderer.h"
#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;
}
using ImageType = itk::Image<itk::RGBPixel<unsigned char>, 2>;
using ConnectorType = itk::ImageToVTKImageFilter<ImageType>;
auto connector = ConnectorType::New();
const auto input = itk::ReadImage<ImageType>(argv[1]);
connector->SetInput(input);
vtkSmartPointer<vtkImageActor> actor = vtkSmartPointer<vtkImageActor>::New();
#if VTK_MAJOR_VERSION <= 5
actor->SetInput(connector->GetOutput());
#else
connector->Update();
actor->GetMapper()->SetInputData(connector->GetOutput());
#endif
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;
}
Classes demonstrated#
-
template<typename TInputImage>
class ImageToVTKImageFilter : public itk::ProcessObject Converts an ITK image into a VTK image and plugs a itk data pipeline to a VTK datapipeline.
This class puts together an itkVTKImageExporter and a vtkImageImporter. It takes care of the details related to the connection of ITK and VTK pipelines. The User will perceive this filter as an adaptor to which an itk::Image can be plugged as input and a vtkImage is produced as output.
