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| ==MaskImageFilter.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| | {{warning|1=The media wiki content on this page is no longer maintained.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 "itkMaskImageFilter.h"
| |
| #include "itkRescaleIntensityImageFilter.h"
| |
| | |
| #include <itkImageToVTKImageFilter.h>
| |
| | |
| #include "vtkImageViewer.h"
| |
| #include "vtkRenderWindowInteractor.h"
| |
| #include "vtkSmartPointer.h"
| |
| #include "vtkImageActor.h"
| |
| #include "vtkInteractorStyleImage.h"
| |
| #include "vtkRenderer.h"
| |
| | |
| typedef itk::Image<unsigned char, 2> ImageType;
| |
| | |
| void CreateHalfMask(ImageType::Pointer image, ImageType::Pointer mask);
| |
| | |
| int main(int argc, char *argv[])
| |
| { | |
| if(argc < 2)
| |
| {
| |
| std::cerr << "Required: filename" << std::endl;
| |
| return EXIT_FAILURE;
| |
| }
| |
| | |
| typedef itk::ImageFileReader<ImageType> ReaderType;
| |
| ReaderType::Pointer reader = ReaderType::New();
| |
| reader->SetFileName(argv[1]);
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| reader->Update();
| |
| | |
| ImageType::Pointer mask = ImageType::New();
| |
| CreateHalfMask(reader->GetOutput(), mask);
| |
|
| |
| typedef itk::MaskImageFilter< ImageType, ImageType > MaskFilterType;
| |
| MaskFilterType::Pointer maskFilter = MaskFilterType::New();
| |
| maskFilter->SetInput1(reader->GetOutput());
| |
| maskFilter->SetInput2(mask);
| |
| maskFilter->Update();;
| |
| | |
| // Visualize original image
| |
| typedef itk::ImageToVTKImageFilter<ImageType> ConnectorType;
| |
|
| |
| ConnectorType::Pointer originalConnector = ConnectorType::New();
| |
| originalConnector->SetInput(reader->GetOutput());
| |
| vtkSmartPointer<vtkImageActor> originalActor =
| |
| vtkSmartPointer<vtkImageActor>::New();
| |
| originalActor->SetInput(originalConnector->GetOutput());
| |
| | |
| // Visualize mask image
| |
| typedef itk::RescaleIntensityImageFilter< ImageType, ImageType > RescaleFilterType;
| |
| RescaleFilterType::Pointer rescaleFilter = RescaleFilterType::New();
| |
| rescaleFilter->SetInput(mask);
| |
| rescaleFilter->SetOutputMinimum(0);
| |
| rescaleFilter->SetOutputMaximum(255);
| |
|
| |
| ConnectorType::Pointer maskConnector = ConnectorType::New();
| |
| maskConnector->SetInput(rescaleFilter->GetOutput());
| |
| | |
| vtkSmartPointer<vtkImageActor> maskActor =
| |
| vtkSmartPointer<vtkImageActor>::New();
| |
| maskActor->SetInput(maskConnector->GetOutput());
| |
| | |
| // Visualize masked image
| |
| ConnectorType::Pointer maskedConnector = ConnectorType::New();
| |
| maskedConnector->SetInput(maskFilter->GetOutput());
| |
| | |
| vtkSmartPointer<vtkImageActor> maskedActor =
| |
| vtkSmartPointer<vtkImageActor>::New();
| |
| maskedActor->SetInput(maskedConnector->GetOutput());
| |
| | |
|
| |
| // There will be one render window
| |
| vtkSmartPointer<vtkRenderWindow> renderWindow =
| |
| vtkSmartPointer<vtkRenderWindow>::New();
| |
| renderWindow->SetSize(900, 300);
| |
| | |
| vtkSmartPointer<vtkRenderWindowInteractor> interactor =
| |
| vtkSmartPointer<vtkRenderWindowInteractor>::New();
| |
| interactor->SetRenderWindow(renderWindow);
| |
| | |
| // Define viewport ranges
| |
| // (xmin, ymin, xmax, ymax)
| |
| double leftViewport[4] = {0.0, 0.0, 0.33, 1.0};
| |
| double centerViewport[4] = {0.33, 0.0, 0.66, 1.0};
| |
| double rightViewport[4] = {0.66, 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);
| |
| | |
| // Setup both renderers
| |
| vtkSmartPointer<vtkRenderer> centerRenderer =
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| vtkSmartPointer<vtkRenderer>::New();
| |
| renderWindow->AddRenderer(centerRenderer);
| |
| centerRenderer->SetViewport(centerViewport);
| |
| centerRenderer->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);
| |
| centerRenderer->AddActor(maskActor);
| |
| rightRenderer->AddActor(maskedActor);
| |
| | |
| leftRenderer->ResetCamera();
| |
| centerRenderer->ResetCamera();
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| rightRenderer->ResetCamera();
| |
| | |
| renderWindow->Render();
| |
| | |
| vtkSmartPointer<vtkInteractorStyleImage> style =
| |
| vtkSmartPointer<vtkInteractorStyleImage>::New();
| |
| | |
| interactor->SetInteractorStyle(style);
| |
| | |
| interactor->Start();
| |
| | |
| return EXIT_SUCCESS;
| |
| }
| |
| | |
| | |
| void CreateHalfMask(ImageType::Pointer image, ImageType::Pointer mask)
| |
| {
| |
| ImageType::RegionType region = image->GetLargestPossibleRegion();
| |
|
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| mask->SetRegions(region);
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| mask->Allocate();
| |
| | |
| ImageType::SizeType regionSize = region.GetSize();
| |
| | |
| itk::ImageRegionIterator<ImageType> imageIterator(mask,region);
| |
| | |
| // Make the left half of the mask white and the right half black
| |
| while(!imageIterator.IsAtEnd())
| |
| {
| |
| if(imageIterator.GetIndex()[0] > regionSize[0] / 2)
| |
| {
| |
| imageIterator.Set(0);
| |
| }
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| else
| |
| {
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| imageIterator.Set(1);
| |
| }
| |
| | |
| ++imageIterator;
| |
| }
| |
| | |
| } | |
| </source>
| |
| | |
| ==CMakeLists.txt==
| |
| <source lang="cmake">
| |
| cmake_minimum_required(VERSION 2.6)
| |
| | |
| PROJECT(MaskImageFilter)
| |
| | |
| 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(MaskImageFilter MaskImageFilter.cxx)
| |
| TARGET_LINK_LIBRARIES(MaskImageFilter
| |
| vtkHybrid
| |
| ITKIO ITKBasicFilters ITKCommon
| |
| )
| |
| | |
| | |
| </source>
| |
