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| error C2248: 'itk::GaussianBlurImageFunction<TInputImage>::~GaussianBlurImageFunction' : cannot access protected member declared in class 'itk::GaussianBlurImageFunction<TInputImage>'
| | {{warning|1=The media wiki content on this page is no longer maintained.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. |
| | | }} |
| ==GaussianBlurImageFunctionFilter.cxx== | |
| <source lang="cpp">
| |
| #include "itkGaussianBlurImageFunction.h"
| |
| #include "itkImage.h"
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| #include "itkImageFileReader.h"
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| #include "itkImageFileWriter.h"
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| #include "itkImageRegionIterator.h"
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| #include "itkUnaryFunctorImageFilter.h"
| |
| | |
| int main( int argc, char * argv[] )
| |
| {
| |
| // Verify arguments
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| if( argc < 5 )
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| {
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| std::cerr << "Usage: " << std::endl;
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| std::cerr << argv[0] << " inputImageFile outputImageFile sigma maxKernelWidth" << std::endl;
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| return EXIT_FAILURE;
| |
| }
| |
|
| |
| // Parse arguments
| |
| std::string inputFileName = argv[1];
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| std::string outputFileName = argv[2];
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| float sigma = 0;
| |
| {
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| std::stringstream ss(argv[3]);
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| ss >> sigma;
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| }
| |
| int maxKernelWidth = 0;
| |
| {
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| std::stringstream ss(argv[4]);
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| ss >> maxKernelWidth;
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| }
| |
|
| |
| typedef itk::Image< float, 2 > ImageType;
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| typedef itk::ImageFileReader< ImageType > ReaderType;
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| typedef itk::ImageRegionIterator< ImageType > IteratorType;
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| typedef itk::ImageRegionConstIterator< ImageType > ConstIteratorType;
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|
| |
| ReaderType::Pointer reader = ReaderType::New();
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| reader->SetFileName( inputFileName );
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| reader->Update();
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|
| |
| /*
| |
| // This manually creates the output and computes the values at each pixel
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| const ImageType * inputImage = reader->GetOutput();
| |
| | |
| ImageType::RegionType region = inputImage->GetBufferedRegion();
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|
| |
| ImageType::Pointer output = ImageType::New();
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|
| |
| output->SetRegions( region );
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| output->SetOrigin( inputImage->GetOrigin() );
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| output->SetSpacing( inputImage->GetSpacing() );
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| output->Allocate();
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|
| |
| ConstIteratorType it( inputImage, region );
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| IteratorType out( output, region );
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|
| |
| it.GoToBegin();
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| out.GoToBegin();
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|
| |
| while( !it.IsAtEnd() )
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| {
| |
| out.Set( gaussianFunction->EvaluateAtIndex(it.GetIndex() ) );
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| ++it;
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| ++out;
| |
| }
| |
| */ | |
|
| |
| typedef itk::GaussianBlurImageFunction< ImageType > GaussianBlurImageFunctionType;
| |
| // SetFunctor seems to need an actual object (not a pointer), but we can't create one like this:
| |
| //GaussianBlurImageFunctionType gaussianFunction;
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|
| |
| GaussianBlurImageFunctionType::Pointer gaussianFunction = GaussianBlurImageFunctionType::New();
| |
| //gaussianFunction->SetInputImage( reader->GetOutput() ); // Do we need to do this since we are going to do unaryFunctor->SetInput?
| |
| | |
|
| |
| typedef itk::UnaryFunctorImageFilter<ImageType,ImageType,
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| GaussianBlurImageFunctionType> FilterType;
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| FilterType::Pointer filter = FilterType::New();
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| filter->SetInput(reader->GetOutput());
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|
| |
| GaussianBlurImageFunctionType::ErrorArrayType setError;
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| setError.Fill( 0.01 );
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| filter->GetFunctor().SetMaximumError( setError );
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| filter->GetFunctor().SetSigma( sigma );
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| filter->GetFunctor().SetMaximumKernelWidth( maxKernelWidth );
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| | |
| filter->Update();
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|
| |
| typedef itk::ImageFileWriter < ImageType > WriterType;
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| WriterType::Pointer writer = WriterType::New();
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| writer->SetFileName(outputFileName);
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| writer->SetInput(filter->GetOutput());
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| writer->Update();
| |
|
| |
| return EXIT_SUCCESS;
| |
| }
| |
| </source>
| |
| | |
| | |
| {{ITKCMakeLists|{{SUBPAGENAME}}}}
| |
