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| <div class="floatright">[[File:ITK_Examples_Baseline_IO_TestDisplayAnImage.png]]</div>
| | {{warning|1=The media wiki content on this page is no longer maintained.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.}} |
| This example demonstrates how to display an itkImage on the screen using VTK.
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| ==DisplayAnImage.cxx==
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| <source lang="cpp">
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| #include <itkImage.h>
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| #include <itkImageFileReader.h>
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| #include <itkImageToVTKImageFilter.h>
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| #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 "itkRGBPixel.h"
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| int main(int argc, char *argv[])
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| {
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| if( argc < 2 ) | |
| {
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| std::cerr << "Usage: " << std::endl;
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| std::cerr << argv[0] << " inputImageFile" << std::endl;
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| return EXIT_FAILURE;
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| }
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| typedef itk::Image<itk::RGBPixel<unsigned char>, 2> ImageType;
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| typedef itk::ImageFileReader<ImageType> ReaderType;
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| typedef itk::ImageToVTKImageFilter<ImageType> ConnectorType;
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| ReaderType::Pointer reader = ReaderType::New();
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| ConnectorType::Pointer connector = ConnectorType::New();
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| reader->SetFileName(argv[1]);
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| connector->SetInput(reader->GetOutput());
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|
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| vtkSmartPointer<vtkImageActor> actor =
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| vtkSmartPointer<vtkImageActor>::New();
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| actor->SetInput(connector->GetOutput());
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| vtkSmartPointer<vtkRenderer> renderer =
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| vtkSmartPointer<vtkRenderer>::New();
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| renderer->AddActor(actor);
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| renderer->ResetCamera();
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| vtkSmartPointer<vtkRenderWindow> renderWindow =
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| vtkSmartPointer<vtkRenderWindow>::New();
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| renderWindow->AddRenderer(renderer);
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| vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
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| vtkSmartPointer<vtkRenderWindowInteractor>::New();
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| vtkSmartPointer<vtkInteractorStyleImage> style =
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| vtkSmartPointer<vtkInteractorStyleImage>::New();
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| renderWindowInteractor->SetInteractorStyle(style);
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| renderWindowInteractor->SetRenderWindow(renderWindow);
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| renderWindowInteractor->Initialize();
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| renderWindowInteractor->Start();
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|
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| return EXIT_SUCCESS;
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| }
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| </source>
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| ==CMakeLists.txt==
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| <source lang="cmake">
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| cmake_minimum_required(VERSION 2.6)
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| PROJECT(ImageToVTKImageFilter)
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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})
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| ADD_EXECUTABLE(ImageToVTKImageFilter DisplayAnImage.cxx)
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| TARGET_LINK_LIBRARIES(ImageToVTKImageFilter vtkHybrid
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| ITKBasicFilters ITKCommon ITKIO
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| )
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| </source>
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