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| <div class="floatcenter">[[File:ITK_Examples_Baseline_ImageProcessing_TestRescaleIntensityImageFilter.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| | {{warning|1=The media wiki content on this page is no longer maintained.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. |
| ==RescaleIntensityImageFilter.cxx==
| | }} |
| <source lang="cpp">
| |
| #include "itkImage.h"
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| #include "itkImageFileReader.h"
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| #include "itkRescaleIntensityImageFilter.h"
| |
| #include "itkCastImageFilter.h"
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|
| |
|
| #include <cstdlib>
| | [https://itk.org/ITKExamples[ITK Sphinx Examples]] |
| #include <iostream>
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| | |
| #include "itkImageToVTKImageFilter.h"
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| | |
| #include "vtkVersion.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 "vtkImageMapper3D.h"
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| #include "vtkInteractorStyleImage.h"
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| #include "vtkRenderer.h"
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| #include "vtkCamera.h"
| |
| | |
| int main(int argc, char *argv[])
| |
| {
| |
| if(argc < 2)
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| {
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| std::cerr << "Usage: " << argv[0] << " filename" << std::endl;
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| return EXIT_FAILURE;
| |
| }
| |
|
| |
| typedef itk::Image<unsigned char, 2> ImageType;
| |
| | |
| typedef itk::ImageFileReader<ImageType> ReaderType;
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| ReaderType::Pointer reader = ReaderType::New();
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| reader->SetFileName(argv[1]);
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| | |
| typedef itk::ImageToVTKImageFilter<ImageType> ConnectorType;
| |
| ConnectorType::Pointer originalConnector = ConnectorType::New();
| |
| originalConnector->SetInput(reader->GetOutput());
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| vtkSmartPointer<vtkImageActor> originalActor =
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| vtkSmartPointer<vtkImageActor>::New();
| |
| #if VTK_MAJOR_VERSION <= 5
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| originalActor->SetInput(originalConnector->GetOutput());
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| #else
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| originalConnector->Update();
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| originalActor->GetMapper()->SetInputData(originalConnector->GetOutput());
| |
| #endif
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|
| |
| typedef itk::RescaleIntensityImageFilter< ImageType, ImageType > RescaleFilterType;
| |
| RescaleFilterType::Pointer rescaleFilter = RescaleFilterType::New();
| |
| rescaleFilter->SetInput(reader->GetOutput());
| |
| rescaleFilter->SetOutputMinimum(0);
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| rescaleFilter->SetOutputMaximum(255);
| |
| | |
| ConnectorType::Pointer rescaledConnector = ConnectorType::New();
| |
| rescaledConnector->SetInput(rescaleFilter->GetOutput());
| |
| | |
| vtkSmartPointer<vtkImageActor> rescaledActor =
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| vtkSmartPointer<vtkImageActor>::New();
| |
| #if VTK_MAJOR_VERSION <= 5
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| rescaledActor->SetInput(rescaledConnector->GetOutput());
| |
| #else
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| rescaledConnector->Update();
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| rescaledActor->GetMapper()->SetInputData(rescaledConnector->GetOutput());
| |
| #endif
| |
| | |
| // There will be one render window
| |
| vtkSmartPointer<vtkRenderWindow> renderWindow =
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| vtkSmartPointer<vtkRenderWindow>::New();
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| renderWindow->SetSize(900, 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};
| |
| 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);
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| | |
| 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(rescaledActor);
| |
| | |
| vtkSmartPointer<vtkCamera> camera =
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| vtkSmartPointer<vtkCamera>::New();
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| leftRenderer->SetActiveCamera(camera);
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| rightRenderer->SetActiveCamera(camera);
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| | |
| leftRenderer->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);
| |
| | |
| interactor->Start();
| |
| | |
| return EXIT_SUCCESS;
| |
| }
| |
| </source>
| |
| | |
| {{ITKVTKCMakeLists|RescaleIntensityImageFilter|}}
| |
