ImageRange3D
VTKExamples/Cxx/Images/ImageRange3D
Code
ImageRange3D.cxx
#include <vtkSmartPointer.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkInteractorStyleImage.h>
#include <vtkRenderer.h>
#include <vtkJPEGReader.h>
#include <vtkImageMapper3D.h>
#include <vtkImageActor.h>
#include <vtkImageRange3D.h>
#include <vtkImageCast.h>
int main(int argc, char* argv[])
{
// Parse input arguments
if ( argc != 2 )
{
std::cout << "Required parameters: Filename.jpg" << std::endl;
return EXIT_FAILURE;
}
std::string inputFilename = argv[1];
// Read the image
vtkSmartPointer<vtkJPEGReader> reader =
vtkSmartPointer<vtkJPEGReader>::New();
reader->SetFileName(inputFilename.c_str());
reader->Update();
// Create actors
vtkSmartPointer<vtkImageActor> originalActor =
vtkSmartPointer<vtkImageActor>::New();
originalActor->GetMapper()->SetInputConnection(
reader->GetOutputPort());
vtkSmartPointer<vtkImageRange3D> rangeFilter =
vtkSmartPointer<vtkImageRange3D>::New();
rangeFilter->SetInputConnection(reader->GetOutputPort());
rangeFilter->SetKernelSize(5,5,5);
rangeFilter->Update();
vtkSmartPointer<vtkImageCast> rangeCastFilter =
vtkSmartPointer<vtkImageCast>::New();
rangeCastFilter->SetInputConnection(rangeFilter->GetOutputPort());
rangeCastFilter->SetOutputScalarTypeToUnsignedChar();
rangeCastFilter->Update();
vtkSmartPointer<vtkImageActor> rangeActor =
vtkSmartPointer<vtkImageActor>::New();
rangeActor->GetMapper()->SetInputConnection(
rangeCastFilter->GetOutputPort());
// Define viewport ranges
// (xmin, ymin, xmax, ymax)
double originalViewport[4] = {0.0, 0.0, 0.5, 1.0};
double rangeViewport[4] = {0.5, 0.0, 1.0, 1.0};
// Setup renderers
vtkSmartPointer<vtkRenderer> originalRenderer =
vtkSmartPointer<vtkRenderer>::New();
originalRenderer->SetViewport(originalViewport);
originalRenderer->AddActor(originalActor);
originalRenderer->ResetCamera();
originalRenderer->SetBackground(.4, .5, .6);
vtkSmartPointer<vtkRenderer> rangeRenderer =
vtkSmartPointer<vtkRenderer>::New();
rangeRenderer->SetViewport(rangeViewport);
rangeRenderer->AddActor(rangeActor);
rangeRenderer->ResetCamera();
rangeRenderer->SetBackground(.4, .5, .7);
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
renderWindow->SetSize(600, 300);
renderWindow->AddRenderer(originalRenderer);
renderWindow->AddRenderer(rangeRenderer);
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;
}
CMakeLists.txt
cmake_minimum_required(VERSION 2.8)
PROJECT(ImageRange3D)
find_package(VTK REQUIRED)
include(${VTK_USE_FILE})
add_executable(ImageRange3D MACOSX_BUNDLE ImageRange3D.cxx)
target_link_libraries(ImageRange3D ${VTK_LIBRARIES})
Download and Build ImageRange3D
Click here to download ImageRange3D and its CMakeLists.txt file. Once the tarball ImageRange3D.tar has been downloaded and extracted,
cd ImageRange3D/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:
./ImageRange3D
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.