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| <div class="floatcenter">[[File:ITK_Examples_Baseline_ImageProcessing_TestMinimumMaximumImageCalculator.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| | {{warning|1=The media wiki content on this page is no longer maintained.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. |
| ==MinimumMaximumImageCalculator.cxx==
| | }} |
| <source lang="cpp">
| |
| #include "itkImage.h"
| |
| #include "itkImageFileWriter.h"
| |
| #include "itkMinimumMaximumImageCalculator.h"
| |
| #include "itkImageFileReader.h"
| |
| | |
| #include <itkImageToVTKImageFilter.h>
| |
| | |
| #include "vtkVersion.h"
| |
| #include "vtkImageViewer.h"
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| #include "vtkImageMapper3D.h"
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| #include "vtkRenderWindowInteractor.h"
| |
| #include "vtkSmartPointer.h"
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| #include "vtkImageActor.h"
| |
| #include "vtkInteractorStyleImage.h"
| |
| #include "vtkRenderer.h"
| |
| #include "vtkSphereSource.h"
| |
| #include "vtkPolyDataMapper.h"
| |
| #include "vtkActor.h"
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| #include "vtkProperty.h"
| |
| | |
| typedef itk::Image<unsigned char, 2> ImageType;
| |
| | |
| int main(int argc, char*argv[])
| |
| { | |
| if(argc < 2)
| |
| {
| |
| std::cerr << "Required: filename" << std::endl;
| |
| | |
| return EXIT_FAILURE;
| |
| }
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| std::string inputFilename = argv[1];
| |
| | |
| typedef itk::Image< unsigned char, 2 > ImageType;
| |
| | |
| typedef itk::ImageFileReader<ImageType> ReaderType;
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| ReaderType::Pointer reader = ReaderType::New();
| |
| | |
| reader->SetFileName(inputFilename.c_str());
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| reader->Update();
| |
| | |
| typedef itk::MinimumMaximumImageCalculator <ImageType>
| |
| ImageCalculatorFilterType;
| |
| | |
| ImageCalculatorFilterType::Pointer imageCalculatorFilter
| |
| = ImageCalculatorFilterType::New ();
| |
| imageCalculatorFilter->SetImage(reader->GetOutput());
| |
| imageCalculatorFilter->Compute();
| |
| | |
| typedef itk::ImageToVTKImageFilter<ImageType> ConnectorType;
| |
| ConnectorType::Pointer originalConnector = ConnectorType::New();
| |
| | |
| originalConnector->SetInput(reader->GetOutput());
| |
| | |
| vtkSmartPointer<vtkImageActor> originalActor =
| |
| vtkSmartPointer<vtkImageActor>::New();
| |
| #if VTK_MAJOR_VERSION <= 5
| |
| originalActor->SetInput(originalConnector->GetOutput());
| |
| #else
| |
| originalConnector->Update();
| |
| originalActor->GetMapper()->SetInputData(originalConnector->GetOutput());
| |
| #endif
| |
| | |
| vtkSmartPointer<vtkSphereSource> minimumSphereSource =
| |
| vtkSmartPointer<vtkSphereSource>::New();
| |
| ImageType::IndexType minimumLocation = imageCalculatorFilter->GetIndexOfMinimum();
| |
| minimumSphereSource->SetCenter(minimumLocation[0], minimumLocation[1], 0);
| |
| minimumSphereSource->SetRadius(10);
| |
| | |
| vtkSmartPointer<vtkPolyDataMapper> minimumMapper =
| |
| vtkSmartPointer<vtkPolyDataMapper>::New();
| |
| minimumMapper->SetInputConnection(minimumSphereSource->GetOutputPort());
| |
| vtkSmartPointer<vtkActor> minimumActor =
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| vtkSmartPointer<vtkActor>::New();
| |
| minimumActor->SetMapper(minimumMapper);
| |
| minimumActor->GetProperty()->SetColor(0,1,0);
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|
| |
| vtkSmartPointer<vtkSphereSource> maximumSphereSource =
| |
| vtkSmartPointer<vtkSphereSource>::New();
| |
| maximumSphereSource->SetRadius(10);
| |
| ImageType::IndexType maximumLocation = imageCalculatorFilter->GetIndexOfMaximum();
| |
| maximumSphereSource->SetCenter(maximumLocation[0], maximumLocation[1], 0);
| |
| | |
| vtkSmartPointer<vtkPolyDataMapper> maximumMapper =
| |
| vtkSmartPointer<vtkPolyDataMapper>::New();
| |
| maximumMapper->SetInputConnection(maximumSphereSource->GetOutputPort());
| |
| vtkSmartPointer<vtkActor> maximumActor =
| |
| vtkSmartPointer<vtkActor>::New();
| |
| maximumActor->SetMapper(maximumMapper);
| |
| maximumActor->GetProperty()->SetColor(1,0,0);
| |
| | |
| | |
| // Visualize
| |
| vtkSmartPointer<vtkRenderWindow> renderWindow = | |
| vtkSmartPointer<vtkRenderWindow>::New();
| |
| | |
| vtkSmartPointer<vtkRenderWindowInteractor> interactor =
| |
| vtkSmartPointer<vtkRenderWindowInteractor>::New();
| |
| interactor->SetRenderWindow(renderWindow);
| |
| | |
| vtkSmartPointer<vtkRenderer> renderer =
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| vtkSmartPointer<vtkRenderer>::New();
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| renderWindow->AddRenderer(renderer);
| |
| | |
| // Add the sphere to the left and the cube to the right
| |
| renderer->AddActor(originalActor);
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| renderer->AddActor(minimumActor);
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| renderer->AddActor(maximumActor);
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| | |
| renderer->ResetCamera();
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| | |
| renderWindow->Render();
| |
| | |
| vtkSmartPointer<vtkInteractorStyleImage> style =
| |
| vtkSmartPointer<vtkInteractorStyleImage>::New();
| |
| interactor->SetInteractorStyle(style);
| |
| | |
| interactor->Start();
| |
| | |
| return EXIT_SUCCESS;
| |
| }
| |
| </source>
| |
| | |
| | |
| {{ITKVTKCMakeLists|MinimumMaximumImageCalculator|}}
| |
