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| ==RegionOfInterestImageFilter.cxx== | | {{warning|1=The media wiki content on this page is no longer maintained.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"
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| #include "itkImageFileReader.h"
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| #include "itkRegionOfInterestImageFilter.h"
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|
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|
| #include "itkImageToVTKImageFilter.h"
| | [https://itk.org/ITKExamples[ITK Sphinx Examples]] |
| | |
| #include "vtkImageViewer.h"
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| #include "vtkRenderWindowInteractor.h"
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| #include "vtkSmartPointer.h"
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| #include "vtkImageActor.h"
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| #include "vtkInteractorStyleImage.h"
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| #include "vtkRenderer.h"
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| | |
| #include <iostream>
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| #include <string>
| |
| | |
| int main(int argc, char *argv[])
| |
| {
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| if(argc < 2)
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| {
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| std::cerr << "Required: filename" << std::endl;
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| return EXIT_FAILURE;
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| }
| |
| | |
| std::string filename = argv[1];
| |
| | |
| typedef itk::Image<unsigned char, 2> ImageType;
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| typedef itk::ImageFileReader<ImageType> ReaderType;
| |
| typedef itk::ImageToVTKImageFilter<ImageType> ConnectorType;
| |
| | |
| ReaderType::Pointer reader = ReaderType::New();
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| ConnectorType::Pointer originalConnector = ConnectorType::New();
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| ConnectorType::Pointer extractedConnector = ConnectorType::New();
| |
| | |
| reader->SetFileName(filename.c_str());
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| reader->Update();
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| | |
| ImageType::SizeType inSize = reader->GetOutput()->GetLargestPossibleRegion().GetSize();
| |
| | |
| originalConnector->SetInput(reader->GetOutput());
| |
| | |
| vtkSmartPointer<vtkImageActor> originalActor =
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| vtkSmartPointer<vtkImageActor>::New();
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| originalActor->SetInput(originalConnector->GetOutput());
| |
| | |
| typedef itk::RegionOfInterestImageFilter< ImageType, ImageType > FilterType;
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| FilterType::Pointer filter = FilterType::New();
| |
| | |
| ImageType::IndexType start;
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| start[0] = inSize[0]/4;
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| start[1] = inSize[1]/4;
| |
| | |
| ImageType::SizeType size;
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| size[0] = inSize[0]/4;
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| size[1] = inSize[1]/4;
| |
| | |
| ImageType::RegionType desiredRegion;
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| desiredRegion.SetSize(size);
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| desiredRegion.SetIndex(start);
| |
| | |
| filter->SetRegionOfInterest(desiredRegion);
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| filter->SetInput(reader->GetOutput());
| |
| | |
| extractedConnector->SetInput(filter->GetOutput());
| |
| | |
| vtkSmartPointer<vtkImageActor> extractedActor =
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| vtkSmartPointer<vtkImageActor>::New();
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| extractedActor->SetInput(extractedConnector->GetOutput());
| |
| | |
| // There will be one render window
| |
| vtkSmartPointer<vtkRenderWindow> renderWindow =
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| vtkSmartPointer<vtkRenderWindow>::New();
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| renderWindow->SetSize(600, 300);
| |
| | |
| vtkSmartPointer<vtkRenderWindowInteractor> interactor =
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| vtkSmartPointer<vtkRenderWindowInteractor>::New();
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| interactor->SetRenderWindow(renderWindow);
| |
| | |
| // Define viewport ranges
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| // (xmin, ymin, xmax, ymax)
| |
| double leftViewport[4] = {0.0, 0.0, 0.5, 1.0};
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| double rightViewport[4] = {0.5, 0.0, 1.0, 1.0};
| |
| | |
| // Setup both renderers
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| vtkSmartPointer<vtkRenderer> leftRenderer =
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| vtkSmartPointer<vtkRenderer>::New();
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| renderWindow->AddRenderer(leftRenderer);
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| leftRenderer->SetViewport(leftViewport);
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| leftRenderer->SetBackground(.6, .5, .4);
| |
| | |
| vtkSmartPointer<vtkRenderer> rightRenderer =
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| vtkSmartPointer<vtkRenderer>::New();
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| renderWindow->AddRenderer(rightRenderer);
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| rightRenderer->SetViewport(rightViewport);
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| rightRenderer->SetBackground(.4, .5, .6);
| |
| | |
| // Add the sphere to the left and the cube to the right
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| leftRenderer->AddActor(originalActor);
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| rightRenderer->AddActor(extractedActor);
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| leftRenderer->ResetCamera();
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| rightRenderer->ResetCamera();
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| renderWindow->Render();
| |
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| vtkSmartPointer<vtkInteractorStyleImage> style =
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| vtkSmartPointer<vtkInteractorStyleImage>::New();
| |
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| interactor->SetInteractorStyle(style);
| |
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| interactor->Start();
| |
| | |
| return EXIT_SUCCESS;
| |
| }
| |
| </source>
| |
| | |
| ==CMakeLists.txt==
| |
| <source lang="cmake">
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| cmake_minimum_required(VERSION 2.6)
| |
| | |
| PROJECT(RegionOfInterestImageFilter)
| |
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| include_directories(/home/doriad/src/ITK/Wrapping/WrapITK/ExternalProjects/ItkVtkGlue/src/)
| |
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| FIND_PACKAGE(VTK REQUIRED)
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| INCLUDE(${VTK_USE_FILE})
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| FIND_PACKAGE(ITK REQUIRED)
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| INCLUDE(${ITK_USE_FILE})
| |
| | |
| ADD_EXECUTABLE(RegionOfInterestImageFilter RegionOfInterestImageFilter.cpp)
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| TARGET_LINK_LIBRARIES(RegionOfInterestImageFilter
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| vtkHybrid
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| ITKBasicFilters ITKCommon ITKIO)
| |
| | |
| </source>
| |
