HardConnectedComponentImageFilter Namespace Reference

---

Detailed Description

The purpose of this program is to produce the connected components for any input binary image of dimensionality n.

The program does a forward pass line by line through the entire image. Each cell in the foreground is assigned the same label value as cells in its neighborhood. If there is no label among the cells in its neighborhood, a new label value is assigned to the cell. This means that this cell belongs to a different connected component. We set up an equivalence table for each label to indicate the equivalence of the labels stored in the table. After the forward pass goes through the entire image, we merge the different connected components corresponding to the equivalence labels in the table. We implement this strategy in function GenerateData().

There are two options in the program. 1. Take an nD binary image as input, and produce an nD gray image, where intensity indicates label assigned to a connected component. 2. Take an nD binary image and a set of seed points as input, and output an nD binary image containing the cells connected to the seeds. For option 2, users need to assign the member variable std::list<IndexType> m_Seeds before calling function GenerateData().

See also:

ImageToImageFilter

typedef TInputImage::InternalPixelType	InputInternalPixelType
typedef TInputImage::PixelType	InputPixelType
typedef TOutputImage::InternalPixelType	OutputInternalPixelType
typedef TOutputImage::PixelType	OutputPixelType
	itkStaticConstMacro (ImageDimension, unsigned int, TOutputImage::ImageDimension)
	itkStaticConstMacro (InputImageDimension, unsigned int, TInputImage::ImageDimension)
Typedefs
typedef SmartPointer< const Self >	ConstPointer
typedef TInputImage::IndexType	IndexType
typedef TInputImage	InputImageType
typedef std::list< IndexType >	ListType
typedef TOutputImage	OutputImageType
typedef SmartPointer< Self >	Pointer
typedef TOutputImage::RegionType	RegionType
typedef HardConnectedComponentImageFilter	Self
typedef TInputImage::SizeType	SizeType
typedef ImageToImageFilter< TInputImage, TOutputImage >	Superclass
Functions
virtual const char *	GetNameOfClass () const
	HardConnectedComponentImageFilter (const Self &)
	HardConnectedComponentImageFilter ()
static Pointer	New ()
void	SetObjectSeed (const IndexType &seed)
virtual	~HardConnectedComponentImageFilter ()
void	GenerateData ()
void	PrintSelf (std::ostream &os, Indent indent) const
Variables
ListType	m_Seeds

---

Typedef Documentation

typedef SmartPointer<const Self> HardConnectedComponentImageFilter::ConstPointer

Definition at line 89 of file itkHardConnectedComponentImageFilter.h.

typedef TInputImage::IndexType HardConnectedComponentImageFilter::IndexType

Examples:

Common/itkImageSliceIteratorTest.cxx, DataRepresentation/Image/Image1.cxx, DataRepresentation/Image/RGBImage.cxx, DataRepresentation/Image/VectorImage.cxx, Iterators/ImageRegionIterator.cxx, Iterators/ImageRegionIteratorWithIndex.cxx, and Testing/Code/Common/itkVectorImageTest.cxx.

Definition at line 80 of file itkHardConnectedComponentImageFilter.h.

typedef TInputImage HardConnectedComponentImageFilter::InputImageType

Image typedef support

Definition at line 78 of file itkHardConnectedComponentImageFilter.h.

typedef TInputImage::InternalPixelType HardConnectedComponentImageFilter::InputInternalPixelType

Definition at line 68 of file itkHardConnectedComponentImageFilter.h.

typedef TInputImage::PixelType HardConnectedComponentImageFilter::InputPixelType

Definition at line 67 of file itkHardConnectedComponentImageFilter.h.

typedef std::list<IndexType> HardConnectedComponentImageFilter::ListType

Definition at line 83 of file itkHardConnectedComponentImageFilter.h.

typedef TOutputImage HardConnectedComponentImageFilter::OutputImageType

Definition at line 79 of file itkHardConnectedComponentImageFilter.h.

typedef TOutputImage::InternalPixelType HardConnectedComponentImageFilter::OutputInternalPixelType

Definition at line 66 of file itkHardConnectedComponentImageFilter.h.

typedef TOutputImage::PixelType HardConnectedComponentImageFilter::OutputPixelType

Extract some information from the image types. Dimensionality of the two images is assumed to be the same.

Definition at line 65 of file itkHardConnectedComponentImageFilter.h.

typedef SmartPointer<Self> HardConnectedComponentImageFilter::Pointer

Smart pointer typedef support

Definition at line 88 of file itkHardConnectedComponentImageFilter.h.

typedef TOutputImage::RegionType HardConnectedComponentImageFilter::RegionType

Examples:

Common/itkImageSliceIteratorTest.cxx, DataRepresentation/Image/Image1.cxx, DataRepresentation/Image/VectorImage.cxx, Iterators/ImageRegionIterator.cxx, and Testing/Code/Common/itkVectorImageTest.cxx.

Definition at line 82 of file itkHardConnectedComponentImageFilter.h.

typedef HardConnectedComponentImageFilter HardConnectedComponentImageFilter::Self

Standard "Self" & Superclass typedef.

Definition at line 58 of file itkHardConnectedComponentImageFilter.h.

typedef TInputImage::SizeType HardConnectedComponentImageFilter::SizeType

Examples:

Common/itkImageSliceIteratorTest.cxx, DataRepresentation/Image/Image1.cxx, DataRepresentation/Image/VectorImage.cxx, Iterators/ImageRegionIterator.cxx, Iterators/ImageRegionIteratorWithIndex.cxx, and Testing/Code/Common/itkVectorImageTest.cxx.

Definition at line 81 of file itkHardConnectedComponentImageFilter.h.

typedef ImageToImageFilter< TInputImage, TOutputImage > HardConnectedComponentImageFilter::Superclass

Definition at line 59 of file itkHardConnectedComponentImageFilter.h.

---

Function Documentation

void HardConnectedComponentImageFilter::GenerateData

(

)

[protected]

Standard pipeline method.

Referenced by itk::SymmetricEigenSystem< TMatrixElement, VNumberOfRows >::Update(), itk::Statistics::SampleAlgorithmBase< TInputHistogram >::Update(), itk::Statistics::ListSampleToHistogramGenerator< TListSample, THistogramMeasurement, TFrequencyContainer, TMeasurementVectorLength >::Update(), and itk::Statistics::KdTreeGenerator< TSample >::Update().

virtual const char* HardConnectedComponentImageFilter::GetNameOfClass

(

)

const [virtual]

Run-time type information (and related methods)

HardConnectedComponentImageFilter::HardConnectedComponentImageFilter

(

const Self &

)

[protected]

Definition at line 126 of file itkHardConnectedComponentImageFilter.h.

HardConnectedComponentImageFilter::HardConnectedComponentImageFilter

(

)

[protected]

Definition at line 124 of file itkHardConnectedComponentImageFilter.h.

HardConnectedComponentImageFilter::itkStaticConstMacro	(	ImageDimension	,
		unsigned	int,
		TOutputImage::ImageDimension
	)

HardConnectedComponentImageFilter::itkStaticConstMacro	(	InputImageDimension	,
		unsigned	int,
		TInputImage::ImageDimension
	)

static Pointer HardConnectedComponentImageFilter::New

(

)

[static]

Method for creation through the object factory.

void HardConnectedComponentImageFilter::PrintSelf	(	std::ostream &	os,
		Indent	indent
	)			const [protected]

Standard pipeline method.

Definition at line 132 of file itkHardConnectedComponentImageFilter.h.

Referenced by itk::Neighborhood< OutputPixelType::ValueType, itkGetStaticConstMacro(ImageDimension)>::Print(), itk::VectorThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::PrintSelf(), itk::VectorNeighborhoodOperatorImageFilter< TInputImage, TOutputImage >::PrintSelf(), itk::VectorNearestNeighborInterpolateImageFunction< TInputImage, TCoordRep >::PrintSelf(), itk::VectorInterpolateImageFunction< TInputImage, TCoordRep >::PrintSelf(), itk::VectorCurvatureNDAnisotropicDiffusionFunction< TImage >::PrintSelf(), itk::VectorCurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::PrintSelf(), itk::VectorAnisotropicDiffusionFunction< TImage >::PrintSelf(), itk::ValarrayImageContainer< TElementIdentifier, TElement >::PrintSelf(), itk::Statistics::TransferFunctionBase< ScalarType >::PrintSelf(), itk::ThresholdSegmentationLevelSetFunction< TImageType, TFeatureImageType >::PrintSelf(), itk::TensorRelativeAnisotropyImageFilter< TInputImage, TOutputImage >::PrintSelf(), itk::TensorFractionalAnisotropyImageFilter< TInputImage, TOutputImage >::PrintSelf(), itk::SymmetricEigenAnalysisImageFilter< TInputImage, TOutputImage >::PrintSelf(), itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::PrintSelf(), itk::ShapeSignedDistanceFunction< TCoordRep, VSpaceDimension >::PrintSelf(), itk::ShapeDetectionLevelSetFunction< TImageType, TFeatureImageType >::PrintSelf(), itk::ScalarAnisotropicDiffusionFunction< TImage >::PrintSelf(), itk::Statistics::Sample< TPointSet::PointType >::PrintSelf(), itk::Statistics::RadialBasisFunctionBase< ScalarType >::PrintSelf(), itk::Statistics::ProbabilityDistribution::PrintSelf(), itk::PDEDeformableRegistrationFunction< TFixedImage, TMovingImage, TDeformationField >::PrintSelf(), itk::NormalizedCorrelationImageFilter< TInputImage, TMaskImage, TOutputImage, TOperatorValueType >::PrintSelf(), itk::Statistics::NNetDistanceMetricBase< TMeasurementVector >::PrintSelf(), itk::NeighborhoodOperatorImageFilter< TInputImage, TOutputImage, TOperatorValueType >::PrintSelf(), itk::NeighborhoodOperator< TPixel, TDimension, TAllocator >::PrintSelf(), itk::NearestNeighborInterpolateImageFunction< TInputImage, TCoordRep >::PrintSelf(), itk::NearestNeighborExtrapolateImageFunction< TInputImage, TCoordRep >::PrintSelf(), itk::Statistics::MersenneTwisterRandomVariateGenerator::PrintSelf(), itk::Statistics::MembershipFunctionBase< TMeasurementVector >::PrintSelf(), itk::MaskImageFilter< TInputImage, TMaskImage, TOutputImage >::PrintSelf(), itk::Statistics::ListSampleBase< TPointSet::PointType >::PrintSelf(), itk::Statistics::LearningFunctionBase< LayerType::LayerInterfaceType, TTargetVector >::PrintSelf(), itk::LaplacianOperator< TPixel, VDimension, TAllocator >::PrintSelf(), itk::KernelFunction::PrintSelf(), itk::InterpolateImageFunction< TImageType, TCoordRep >::PrintSelf(), itk::Statistics::InputFunctionBase< TMeasurementVector, ScalarType >::PrintSelf(), itk::GradientNDAnisotropicDiffusionFunction< TImage >::PrintSelf(), itk::GeodesicActiveContourShapePriorLevelSetFunction< TImageType, TFeatureImageType >::PrintSelf(), itk::GeodesicActiveContourLevelSetFunction< TImageType, TFeatureImageType >::PrintSelf(), itk::GaussianOperator< TPixel, VDimension, TAllocator >::PrintSelf(), itk::GaussianKernelFunction::PrintSelf(), itk::ExtrapolateImageFunction< TInputImage, TCoordRep >::PrintSelf(), itk::DerivativeOperator< OutputImagePixelType, itkGetStaticConstMacro(ImageDimension)>::PrintSelf(), itk::Statistics::DensityFunction< TMeasurementVector >::PrintSelf(), itk::CurvesLevelSetFunction< TImageType, TFeatureImageType >::PrintSelf(), itk::CurvatureNDAnisotropicDiffusionFunction< TImage >::PrintSelf(), itk::BSplineResampleImageFunction< TImageType, TCoordRep >::PrintSelf(), itk::BSplineKernelFunction< VSplineOrder >::PrintSelf(), itk::BSplineDerivativeKernelFunction< VSplineOrder >::PrintSelf(), itk::BinaryThresholdProjectionImageFilter< TInputImage, TOutputImage >::PrintSelf(), itk::BinaryProjectionImageFilter< TInputImage, TOutputImage >::PrintSelf(), itk::AnnulusOperator< TPixel, TDimension, TAllocator >::PrintSelf(), itk::AnisotropicDiffusionFunction< TImage >::PrintSelf(), and itk::ActiveShapeModelCalculator< TImage >::PrintSelf().

void HardConnectedComponentImageFilter::SetObjectSeed

(

const IndexType &

seed

)

Setting the seed points for specified object.

Definition at line 102 of file itkHardConnectedComponentImageFilter.h.

References m_Seeds.

virtual HardConnectedComponentImageFilter::~HardConnectedComponentImageFilter

(

)

[protected, virtual]

Definition at line 125 of file itkHardConnectedComponentImageFilter.h.

---

Variable Documentation

ListType HardConnectedComponentImageFilter::m_Seeds

Definition at line 138 of file itkHardConnectedComponentImageFilter.h.

Referenced by itk::VectorConfidenceConnectedImageFilter< TInputImage, TOutputImage >::AddSeed(), itk::NeighborhoodConnectedImageFilter< TInputImage, TOutputImage >::AddSeed(), itk::ConfidenceConnectedImageFilter< TInputImage, TOutputImage >::AddSeed(), itk::NeighborhoodConnectedImageFilter< TInputImage, TOutputImage >::ClearSeeds(), itk::ConfidenceConnectedImageFilter< TInputImage, TOutputImage >::ClearSeeds(), SetObjectSeed(), itk::VectorConfidenceConnectedImageFilter< TInputImage, TOutputImage >::SetSeed(), and itk::ConfidenceConnectedImageFilter< TInputImage, TOutputImage >::SetSeed().

---