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| ==VTKImageToImageFilter.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| | {{warning|1=The media wiki content on this page is no longer maintained.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">
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| #include <itkImage.h>
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| #include <itkVTKImageToImageFilter.h>
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| #include "vtkSmartPointer.h"
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| #include "vtkPNGReader.h"
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| #include <vtkImageLuminance.h>
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| #include "QuickView.h"
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| 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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| }
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| vtkSmartPointer<vtkPNGReader> reader =
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| vtkSmartPointer<vtkPNGReader>::New();
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| reader->SetFileName(argv[1]);
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| // reader->SetNumberOfScalarComponents(1); //doesn't seem to work - use ImageLuminance instead
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| reader->Update();
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|
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| // Must convert image to grayscale because itkVTKImageToImageFilter only accepts single channel images
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| vtkSmartPointer<vtkImageLuminance> luminanceFilter =
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| vtkSmartPointer<vtkImageLuminance>::New();
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| luminanceFilter->SetInputConnection(reader->GetOutputPort());
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| luminanceFilter->Update();
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|
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| typedef itk::Image<unsigned char, 2> ImageType; | |
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| typedef itk::VTKImageToImageFilter<ImageType> VTKImageToImageType;
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| VTKImageToImageType::Pointer vtkImageToImageFilter = VTKImageToImageType::New();
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| vtkImageToImageFilter->SetInput(luminanceFilter->GetOutput());
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| //vtkImageToImageFilter->SetInput(reader->GetOutput());
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| vtkImageToImageFilter->Update();
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| ImageType::Pointer image = ImageType::New();
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| image->Graft(vtkImageToImageFilter->GetOutput()); // Need to do this because QuickView can't accept const
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|
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| QuickView viewer;
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| viewer.AddImage(image.GetPointer()); // Need to do this because QuickView can't accept smart pointers
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| viewer.Visualize();
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| return EXIT_SUCCESS;
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| }
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| </source>
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| {{ITKVTKCMakeLists|VTKImageToImageFilter|}}
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