ImageNormalize
VTKExamples/Cxx/ImageData/ImageNormalize
Code¶
ImageNormalize.cxx
#include <vtkSmartPointer.h> #include <vtkImageData.h> #include <vtkImageMapper3D.h> #include <vtkImageSinusoidSource.h> #include <vtkImageNormalize.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkInteractorStyleImage.h> #include <vtkRenderer.h> #include <vtkImageActor.h> #include <vtkImageCast.h> int main(int, char *[]) { // Create an image vtkSmartPointer<vtkImageSinusoidSource> source = vtkSmartPointer<vtkImageSinusoidSource>::New(); source->Update(); vtkSmartPointer<vtkImageNormalize> normalizeFilter = vtkSmartPointer<vtkImageNormalize>::New(); normalizeFilter->SetInputConnection(source->GetOutputPort()); normalizeFilter->Update(); vtkSmartPointer<vtkImageCast> inputCastFilter = vtkSmartPointer<vtkImageCast>::New(); inputCastFilter->SetInputConnection(source->GetOutputPort()); inputCastFilter->SetOutputScalarTypeToUnsignedChar(); inputCastFilter->Update(); vtkSmartPointer<vtkImageCast> normalizeCastFilter = vtkSmartPointer<vtkImageCast>::New(); normalizeCastFilter->SetInputConnection(normalizeFilter->GetOutputPort()); normalizeCastFilter->SetOutputScalarTypeToUnsignedChar(); normalizeCastFilter->Update(); // Create actors vtkSmartPointer<vtkImageActor> inputActor = vtkSmartPointer<vtkImageActor>::New(); inputActor->GetMapper()->SetInputConnection( inputCastFilter->GetOutputPort()); vtkSmartPointer<vtkImageActor> normalizedActor = vtkSmartPointer<vtkImageActor>::New(); normalizedActor->GetMapper()->SetInputConnection( normalizeCastFilter->GetOutputPort()); // There will be one render window vtkSmartPointer<vtkRenderWindow> renderWindow = vtkSmartPointer<vtkRenderWindow>::New(); renderWindow->SetSize(600, 300); // And one interactor vtkSmartPointer<vtkRenderWindowInteractor> interactor = vtkSmartPointer<vtkRenderWindowInteractor>::New(); interactor->SetRenderWindow(renderWindow); // Define viewport ranges // (xmin, ymin, xmax, ymax) double leftViewport[4] = {0.0, 0.0, 0.5, 1.0}; double rightViewport[4] = {0.5, 0.0, 1.0, 1.0}; // Setup both renderers vtkSmartPointer<vtkRenderer> leftRenderer = vtkSmartPointer<vtkRenderer>::New(); renderWindow->AddRenderer(leftRenderer); leftRenderer->SetViewport(leftViewport); leftRenderer->SetBackground(.6, .5, .4); vtkSmartPointer<vtkRenderer> rightRenderer = vtkSmartPointer<vtkRenderer>::New(); renderWindow->AddRenderer(rightRenderer); rightRenderer->SetViewport(rightViewport); rightRenderer->SetBackground(.4, .5, .6); leftRenderer->AddActor(inputActor); rightRenderer->AddActor(normalizedActor); leftRenderer->ResetCamera(); rightRenderer->ResetCamera(); renderWindow->Render(); interactor->Start(); return EXIT_SUCCESS; }
CMakeLists.txt¶
cmake_minimum_required(VERSION 2.8) PROJECT(ImageNormalize) find_package(VTK REQUIRED) include(${VTK_USE_FILE}) add_executable(ImageNormalize MACOSX_BUNDLE ImageNormalize.cxx) target_link_libraries(ImageNormalize ${VTK_LIBRARIES})
Download and Build ImageNormalize¶
Danger
The generation of tar files has not been ported to the new VTKExamples. Some tarballs may be missing or out-of-date.
Click here to download ImageNormalize and its CMakeLists.txt file. Once the tarball ImageNormalize.tar has been downloaded and extracted,
cd ImageNormalize/build
If VTK is installed:
cmake ..
If VTK is not installed but compiled on your system, you will need to specify the path to your VTK build:
cmake -DVTK_DIR:PATH=/home/me/vtk_build ..
Build the project:
make
and run it:
./ImageNormalize
WINDOWS USERS PLEASE NOTE: Be sure to add the VTK bin directory to your path. This will resolve the VTK dll's at run time.