#include "vtkVersion.h"
#include "vtkSmartPointer.h"
#include "vtkRenderWindow.h"
#include "vtkRenderer.h"
#include "vtkInteractorStyleImage.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkImageActor.h"
#include "vtkImageMapper3D.h"
#include "vtkImageViewer.h"
static void
ApplyThresholding(ImageType::Pointer image);
int
main(int argc, char * argv[])
{
if (argc < 2)
{
std::cerr << "Required: filename" << std::endl;
return EXIT_FAILURE;
}
std::string inputFilename = argv[1];
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName(inputFilename.c_str());
reader->Update();
ImageType::Pointer image = reader->GetOutput();
ApplyThresholding(image);
ConnectorType::Pointer connector = ConnectorType::New();
connector->SetInput(image);
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<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New();
vtkSmartPointer<vtkRenderWindowInteractor> interactor = vtkSmartPointer<vtkRenderWindowInteractor>::New();
interactor->SetRenderWindow(renderWindow);
vtkSmartPointer<vtkRenderer> renderer = vtkSmartPointer<vtkRenderer>::New();
renderWindow->AddRenderer(renderer);
renderer->AddActor(actor);
renderer->ResetCamera();
renderWindow->Render();
vtkSmartPointer<vtkInteractorStyleImage> style = vtkSmartPointer<vtkInteractorStyleImage>::New();
interactor->SetInteractorStyle(style);
interactor->Start();
return EXIT_SUCCESS;
}
void
ApplyThresholding(ImageType::Pointer image)
{
BinaryThresholdImageFilterType::Pointer thresholdFilter = BinaryThresholdImageFilterType::New();
thresholdFilter->SetInput(image);
thresholdFilter->SetLowerThreshold(10);
thresholdFilter->SetUpperThreshold(50);
thresholdFilter->SetInsideValue(255);
thresholdFilter->SetOutsideValue(0);
thresholdFilter->InPlaceOn();
thresholdFilter->Update();
}