|
|
| (5 intermediate revisions by 2 users not shown) |
| Line 1: |
Line 1: |
| ==RegionOfInterestImageFilter.cxx== | | {{warning|1=The media wiki content on this page is no longer maintained. The examples presented on the https://itk.org/Wiki/* pages likely require ITK version 4.13 or earlier releases. In many cases, the examples on this page no longer conform to the best practices for modern ITK versions. |
| <source lang="cpp">
| | }} |
| #include "itkImage.h"
| |
| #include "itkImageFileReader.h"
| |
| #include "itkRegionOfInterestImageFilter.h"
| |
|
| |
|
| #include "itkImageToVTKImageFilter.h"
| | [https://itk.org/ITKExamples[ITK Sphinx Examples]] |
| | |
| #include "vtkImageViewer.h"
| |
| #include "vtkRenderWindowInteractor.h"
| |
| #include "vtkSmartPointer.h"
| |
| #include "vtkImageActor.h"
| |
| #include "vtkInteractorStyleImage.h"
| |
| #include "vtkRenderer.h"
| |
| | |
| #include <iostream>
| |
| #include <string>
| |
| | |
| int main(int argc, char *argv[])
| |
| {
| |
| if(argc < 2)
| |
| {
| |
| std::cerr << "Required: filename" << std::endl;
| |
| return EXIT_FAILURE;
| |
| }
| |
| | |
| std::string filename = argv[1];
| |
| | |
| typedef itk::Image<unsigned char, 2> ImageType;
| |
| typedef itk::ImageFileReader<ImageType> ReaderType;
| |
| typedef itk::ImageToVTKImageFilter<ImageType> ConnectorType;
| |
| | |
| ReaderType::Pointer reader = ReaderType::New();
| |
| ConnectorType::Pointer originalConnector = ConnectorType::New();
| |
| ConnectorType::Pointer extractedConnector = ConnectorType::New();
| |
| | |
| reader->SetFileName(filename.c_str());
| |
| reader->Update();
| |
| | |
| ImageType::SizeType inSize = reader->GetOutput()->GetLargestPossibleRegion().GetSize();
| |
| | |
| originalConnector->SetInput(reader->GetOutput());
| |
| | |
| vtkSmartPointer<vtkImageActor> originalActor =
| |
| vtkSmartPointer<vtkImageActor>::New();
| |
| originalActor->SetInput(originalConnector->GetOutput());
| |
| | |
| typedef itk::RegionOfInterestImageFilter< ImageType, ImageType > FilterType;
| |
| FilterType::Pointer filter = FilterType::New();
| |
| | |
| ImageType::IndexType start;
| |
| start[0] = inSize[0]/4;
| |
| start[1] = inSize[1]/4;
| |
| | |
| ImageType::SizeType size;
| |
| size[0] = inSize[0]/4;
| |
| size[1] = inSize[1]/4;
| |
| | |
| ImageType::RegionType desiredRegion;
| |
| desiredRegion.SetSize(size);
| |
| desiredRegion.SetIndex(start);
| |
| | |
| filter->SetRegionOfInterest(desiredRegion);
| |
| filter->SetInput(reader->GetOutput());
| |
| | |
| extractedConnector->SetInput(filter->GetOutput());
| |
| | |
| vtkSmartPointer<vtkImageActor> extractedActor =
| |
| vtkSmartPointer<vtkImageActor>::New();
| |
| extractedActor->SetInput(extractedConnector->GetOutput());
| |
| | |
| // There will be one render window
| |
| vtkSmartPointer<vtkRenderWindow> renderWindow =
| |
| vtkSmartPointer<vtkRenderWindow>::New();
| |
| renderWindow->SetSize(600, 300);
| |
| | |
| 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);
| |
| | |
| // Add the sphere to the left and the cube to the right
| |
| leftRenderer->AddActor(originalActor);
| |
| rightRenderer->AddActor(extractedActor);
| |
| | |
| leftRenderer->ResetCamera();
| |
| rightRenderer->ResetCamera();
| |
| | |
| renderWindow->Render();
| |
| | |
| vtkSmartPointer<vtkInteractorStyleImage> style =
| |
| vtkSmartPointer<vtkInteractorStyleImage>::New();
| |
| | |
| interactor->SetInteractorStyle(style);
| |
| | |
| interactor->Start();
| |
| | |
| return EXIT_SUCCESS;
| |
| }
| |
| </source>
| |
| | |
| ==CMakeLists.txt==
| |
| <source lang="cmake">
| |
| cmake_minimum_required(VERSION 2.6)
| |
| | |
| PROJECT(RegionOfInterestImageFilter)
| |
| | |
| 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(RegionOfInterestImageFilter RegionOfInterestImageFilter.cpp)
| |
| TARGET_LINK_LIBRARIES(RegionOfInterestImageFilter
| |
| vtkHybrid
| |
| ITKBasicFilters ITKCommon ITKIO)
| |
| | |
| </source>
| |
