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| ==MultiphaseChanAndVeseSparseFieldLevelSetSegmentation.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| | {{warning|1=The media wiki content on this page is no longer maintained.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.}} |
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| <source lang="cpp">
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| #include "itkScalarChanAndVeseSparseLevelSetImageFilter.h"
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| #include "itkScalarChanAndVeseLevelSetFunction.h"
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| #include "itkScalarChanAndVeseLevelSetFunctionData.h"
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| #include "itkConstrainedRegionBasedLevelSetFunctionSharedData.h"
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| #include "itkImageFileReader.h"
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| #include "itkImageFileWriter.h"
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| #include "itkImage.h"
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| #include "itkAtanRegularizedHeavisideStepFunction.h"
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| | |
| int main(int argc, char**argv)
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| { | |
| if( argc < 10 )
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| {
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| std::cerr << "Missing arguments" << std::endl;
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| std::cerr << "Usage: " << std::endl;
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| std::cerr << argv[0];
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| std::cerr << " inputLevelSetImage1 inputLevelSetImage2 inputLevelSetImage3";
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| std::cerr << " inputFeatureImage outputLevelSetImage";
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| std::cerr << " CurvatureWeight AreaWeight LaplacianWeight";
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| std::cerr << " VolumeWeight Volume OverlapWeight" << std::endl;
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| return EXIT_FAILURE;
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| }
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| unsigned int nb_iteration = 50;
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| double rms = 0.;
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| double epsilon = 1.5;
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| double curvature_weight = atof( argv[6] );
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| double area_weight = atof( argv[7] );
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| double volume_weight = atof( argv[8] );
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| double volume = atof( argv[9] );
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| double overlap_weight = atof( argv[10] );
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| double l1 = 1.;
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| double l2 = 1.;
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| const unsigned int Dimension = 2;
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| typedef float ScalarPixelType;
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| typedef itk::Image< ScalarPixelType, Dimension > LevelSetImageType;
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| typedef itk::Image< unsigned char, Dimension > FeatureImageType;
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| typedef itk::Image< unsigned char, Dimension > OutputImageType;
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| typedef itk::ScalarChanAndVeseLevelSetFunctionData< LevelSetImageType,
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| FeatureImageType > DataHelperType;
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| typedef itk::ConstrainedRegionBasedLevelSetFunctionSharedData<
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| LevelSetImageType, FeatureImageType, DataHelperType > SharedDataHelperType;
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| typedef itk::ScalarChanAndVeseLevelSetFunction< LevelSetImageType,
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| FeatureImageType, SharedDataHelperType > LevelSetFunctionType;
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| typedef itk::ScalarChanAndVeseSparseLevelSetImageFilter< LevelSetImageType,
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| FeatureImageType, OutputImageType, LevelSetFunctionType,
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| SharedDataHelperType > MultiLevelSetType;
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| typedef itk::ImageFileReader< LevelSetImageType > LevelSetReaderType;
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| typedef itk::ImageFileReader< FeatureImageType > FeatureReaderType;
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| typedef itk::ImageFileWriter< OutputImageType > WriterType;
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| typedef itk::AtanRegularizedHeavisideStepFunction< ScalarPixelType,
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| ScalarPixelType > DomainFunctionType;
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| DomainFunctionType::Pointer domainFunction = DomainFunctionType::New();
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| domainFunction->SetEpsilon( epsilon );
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| LevelSetReaderType::Pointer contourReader1 = LevelSetReaderType::New();
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| contourReader1->SetFileName( argv[1] );
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| contourReader1->Update();
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| LevelSetReaderType::Pointer contourReader2 = LevelSetReaderType::New();
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| contourReader2->SetFileName( argv[2] );
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| contourReader2->Update();
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| LevelSetReaderType::Pointer contourReader3 = LevelSetReaderType::New();
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| contourReader3->SetFileName( argv[3] );
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| contourReader3->Update();
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| FeatureReaderType::Pointer featureReader = FeatureReaderType::New();
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| featureReader->SetFileName( argv[4] );
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| featureReader->Update();
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| FeatureImageType::Pointer featureImage = featureReader->GetOutput();
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| LevelSetImageType::Pointer contourImage1 = contourReader1->GetOutput();
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| LevelSetImageType::Pointer contourImage2 = contourReader2->GetOutput();
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| LevelSetImageType::Pointer contourImage3 = contourReader3->GetOutput();
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| MultiLevelSetType::Pointer levelSetFilter = MultiLevelSetType::New();
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| levelSetFilter->SetFunctionCount( 3 );
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| levelSetFilter->SetFeatureImage( featureImage );
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| levelSetFilter->SetLevelSet( 0, contourImage1 );
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| levelSetFilter->SetLevelSet( 1, contourImage2 );
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| levelSetFilter->SetLevelSet( 2, contourImage3 ); | |
| levelSetFilter->SetNumberOfIterations( nb_iteration );
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| levelSetFilter->SetMaximumRMSError( rms );
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| levelSetFilter->SetUseImageSpacing( 1 );
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| levelSetFilter->SetInPlace( false );
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| for ( unsigned int i = 0; i < 3; i++ )
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| {
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| levelSetFilter->GetDifferenceFunction(i)->SetDomainFunction( domainFunction );
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| levelSetFilter->GetDifferenceFunction(i)->SetCurvatureWeight( curvature_weight );
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| levelSetFilter->GetDifferenceFunction(i)->SetAreaWeight( area_weight );
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| levelSetFilter->GetDifferenceFunction(i)->SetOverlapPenaltyWeight( overlap_weight );
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| levelSetFilter->GetDifferenceFunction(i)->SetVolumeMatchingWeight( volume_weight );
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| levelSetFilter->GetDifferenceFunction(i)->SetVolume( volume );
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| levelSetFilter->GetDifferenceFunction(i)->SetLambda1( l1 );
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| levelSetFilter->GetDifferenceFunction(i)->SetLambda2( l2 );
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| }
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| levelSetFilter->Update();
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| WriterType::Pointer writer = WriterType::New();
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| writer->SetInput( levelSetFilter->GetOutput() );
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| writer->SetFileName( argv[5] );
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| try
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| {
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| writer->Update();
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| }
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| catch( itk::ExceptionObject & excep )
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| {
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| std::cerr << "Exception caught !" << std::endl;
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| std::cerr << excep << std::endl;
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| return -1;
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| }
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| return EXIT_SUCCESS;
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| }
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| </source>
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| {{ITKCMakeLists|MultiphaseChanAndVeseSparseFieldLevelSetSegmentation|}}
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