#include <itkLabelGeometryImageFilter.h>

Detailed Description

template<typename TLabelImage, typename TIntensityImage = TLabelImage>
class itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >

Given a label map and an optional intensity image, compute geometric features.

This filter enables the measurement of geometric features of all objects in a labeled ND volume. This labeled volume can represent, for instance, a medical image segmented into different anatomical structures or a microscope image segmented into individual cells. This filter is closely related to the itkLabelStatisticsImageFilter, which measures statistics of image regions defined by a labeled mask such as min, max, and mean intensity, intensity standard deviation, and bounding boxes. This filter, however, measures the geometry of the labeled regions themselves.

It calculates features similar to the regionprops command of Matlab. The set of measurements that it enables include: volume, centroid, eigenvalues, eigenvectors, axes lengths, eccentricity, elongation, orientation, bounding box, oriented bounding box, and rotation matrix. These features are based solely on the labeled mask itself. It also calculates integrated intensity and weighted centroid, which are measured on an intensity image under the labeled mask. These features represent the set of currently calculated features, but the framework of the filter is designed so that it can be easily expanded to measure a wide variety of other features.

Authors: Dirk Padfield and James Miller.

This work is part of the National Alliance for Medical Image Computing (NAMIC), funded by the National Institutes of Health through the NIH Roadmap for Medical Research, Grant U54 EB005149. Information on the National Centers for Biomedical Computing can be obtained from http://commonfund.nih.gov/bioinformatics.

This filter was contributed in the Insight Journal paper: "A Label Geometry Image Filter for Multiple Object Measurement" by Padfield D., Miller J https://doi.org/10.54294/saa3nn

This class contains computational inefficiencies and bugs such as some attributes are not computed with respect to image geometry, consider using these supported alternatives:

See also: LabelStatisticsImageFilter; LabelImageToShapeLabelMapFilter

ITK Sphinx Examples:

All ITK Sphinx Examples

Geometric Properties Of Labeled Region

Definition at line 81 of file itkLabelGeometryImageFilter.h.

Inheritance diagram for itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >:

Collaboration diagram for itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >:

Classes
class	LabelGeometry

Public Types
using	AxesLengthType = itk::FixedArray<RealType, Self::ImageDimension>

using	BoundingBoxFloatType = itk::FixedArray<float, Self::ImageDimension * 2>

using	BoundingBoxType = itk::FixedArray<typename LabelIndexType::IndexValueType, Self::ImageDimension * 2>

using	BoundingBoxVerticesType = std::vector<LabelPointType>

using	ConstPointer = SmartPointer<const Self>

using	DataObjectPointer = typename DataObject::Pointer

using	IndexArrayType = itk::FixedArray<typename LabelIndexType::IndexValueType, Self::ImageDimension>

using	IndexType = typename TIntensityImage::IndexType

using	InputImagePointer = typename TIntensityImage::Pointer

using	IntensityImageType = TIntensityImage

using	LabelImagePointer = typename TLabelImage::Pointer

using	LabelImageType = TLabelImage

using	LabelIndexType = typename TLabelImage::IndexType

using	LabelIndicesType = std::vector<LabelIndexType>

using	LabelPixelType = typename TLabelImage::PixelType

using	LabelPointType = typename TLabelImage::PointType

using	LabelRegionType = typename TLabelImage::RegionType

using	LabelSizeType = typename TLabelImage::SizeType

using	LabelsType = std::vector<LabelPixelType>

using	MapConstIterator = typename std::map<LabelPixelType, LabelGeometry>::const_iterator

using	MapIterator = typename std::map<LabelPixelType, LabelGeometry>::iterator

using	MapType = std::map<LabelPixelType, LabelGeometry>

using	MatrixType = vnl_matrix<double>

using	PixelType = typename TIntensityImage::PixelType

using	Pointer = SmartPointer<Self>

using	RealObjectType = SimpleDataObjectDecorator<RealType>

using	RealType = typename NumericTraits<PixelType>::RealType

using	RegionType = typename TIntensityImage::RegionType

using	Self = LabelGeometryImageFilter

using	SizeType = typename TIntensityImage::SizeType

using	Superclass = ImageToImageFilter<TLabelImage, TIntensityImage>

using	VectorType = std::vector<double>

Public Types inherited from itk::ImageToImageFilter< TLabelImage, TLabelImage >
using	ConstPointer

using	InputImageConstPointer

using	InputImagePixelType

using	InputImagePointer

using	InputImageRegionType

using	InputImageType

typedef typename OutputImageType::PixelType	OutputImagePixelType

using	OutputImagePixelType

typedef typename OutputImageType::RegionType	OutputImageRegionType

using	OutputImageRegionType

using	Pointer

using	Self

using	Superclass

Public Types inherited from itk::ImageSource< TLabelImage >
using	ConstPointer

using	DataObjectIdentifierType

using	DataObjectPointer

using	DataObjectPointerArraySizeType

using	OutputImagePixelType

using	OutputImagePointer

using	OutputImageRegionType

using	OutputImageType

using	Pointer

using	Self

using	Superclass

Public Types inherited from itk::ProcessObject
using	ConstPointer = SmartPointer<const Self>

using	DataObjectIdentifierType = DataObject::DataObjectIdentifierType

using	DataObjectPointer = DataObject::Pointer

using	DataObjectPointerArray = std::vector<DataObjectPointer>

using	DataObjectPointerArraySizeType = DataObjectPointerArray::size_type

using	MultiThreaderType = MultiThreaderBase

using	NameArray = std::vector<DataObjectIdentifierType>

using	Pointer = SmartPointer<Self>

using	Self = ProcessObject

using	Superclass = Object

Public Types inherited from itk::Object
using	ConstPointer = SmartPointer<const Self>

using	Pointer = SmartPointer<Self>

using	Self = Object

using	Superclass = LightObject

Public Types inherited from itk::LightObject
using	ConstPointer = SmartPointer<const Self>

using	Pointer = SmartPointer<Self>

using	Self = LightObject

Public Member Functions
virtual void	CalculateOrientedBoundingBoxOff ()

virtual void	CalculateOrientedBoundingBoxOn ()

virtual void	CalculateOrientedIntensityRegionsOff ()

virtual void	CalculateOrientedIntensityRegionsOn ()

virtual void	CalculateOrientedLabelRegionsOff ()

virtual void	CalculateOrientedLabelRegionsOn ()

virtual void	CalculatePixelIndicesOff ()

virtual void	CalculatePixelIndicesOn ()

virtual::itk::LightObject::Pointer	CreateAnother () const

AxesLengthType	GetAxesLength (LabelPixelType label) const

BoundingBoxType	GetBoundingBox (LabelPixelType label) const

LabelSizeType	GetBoundingBoxSize (LabelPixelType label) const

RealType	GetBoundingBoxVolume (LabelPixelType label) const

virtual bool	GetCalculateOrientedBoundingBox ()

virtual bool	GetCalculateOrientedIntensityRegions ()

virtual bool	GetCalculateOrientedLabelRegions ()

virtual bool	GetCalculatePixelIndices ()

LabelPointType	GetCentroid (LabelPixelType label) const

RealType	GetEccentricity (LabelPixelType label) const

VectorType	GetEigenvalues (LabelPixelType label) const

MatrixType	GetEigenvectors (LabelPixelType label) const

RealType	GetElongation (LabelPixelType label) const

RealType	GetIntegratedIntensity (LabelPixelType label) const

const TIntensityImage *	GetIntensityInput () const

std::vector< LabelPixelType >	GetLabels () const

RealType	GetMajorAxisLength (LabelPixelType label) const

RealType	GetMinorAxisLength (LabelPixelType label) const

const char *	GetNameOfClass () const override

SizeValueType	GetNumberOfLabels () const

SizeValueType	GetNumberOfObjects () const

RealType	GetOrientation (LabelPixelType label) const

LabelPointType	GetOrientedBoundingBoxOrigin (LabelPixelType label) const

LabelPointType	GetOrientedBoundingBoxSize (LabelPixelType label) const

BoundingBoxVerticesType	GetOrientedBoundingBoxVertices (LabelPixelType label) const

RealType	GetOrientedBoundingBoxVolume (LabelPixelType label) const

TIntensityImage *	GetOrientedIntensityImage (LabelPixelType label) const

TLabelImage *	GetOrientedLabelImage (LabelPixelType label) const

LabelIndicesType	GetPixelIndices (LabelPixelType label) const

RegionType	GetRegion (LabelPixelType label) const

MatrixType	GetRotationMatrix (LabelPixelType label) const

SizeValueType	GetVolume (LabelPixelType label) const

LabelPointType	GetWeightedCentroid (LabelPixelType label) const

bool	HasLabel (LabelPixelType label) const

void	SetCalculateOrientedBoundingBox (const bool value)

void	SetCalculateOrientedIntensityRegions (const bool value)

void	SetCalculateOrientedLabelRegions (const bool value)

void	SetCalculatePixelIndices (const bool value)

void	SetIntensityInput (const TIntensityImage *input)

Public Member Functions inherited from itk::ImageToImageFilter< TLabelImage, TLabelImage >
const InputImageType *	GetInput () const

const InputImageType *	GetInput (unsigned int idx) const

void	PopBackInput () override

void	PopFrontInput () override

virtual void	PushBackInput (const InputImageType *input)

virtual void	PushFrontInput (const InputImageType *input)

virtual void	SetInput (const InputImageType *input)

virtual void	SetInput (unsigned int, const TLabelImage *image)

virtual void	SetCoordinateTolerance (double _arg)

virtual double	GetCoordinateTolerance () const

virtual void	SetDirectionTolerance (double _arg)

virtual double	GetDirectionTolerance () const

Public Member Functions inherited from itk::ImageSource< TLabelImage >
OutputImageType *	GetOutput (unsigned int idx)

OutputImageType *	GetOutput ()

const OutputImageType *	GetOutput () const

virtual void	GraftOutput (DataObject *graft)

virtual void	GraftOutput (const DataObjectIdentifierType &key, DataObject *graft)

virtual void	GraftNthOutput (unsigned int idx, DataObject *graft)

ProcessObject::DataObjectPointer	MakeOutput (ProcessObject::DataObjectPointerArraySizeType idx) override

ProcessObject::DataObjectPointer	MakeOutput (const ProcessObject::DataObjectIdentifierType &) override

Public Member Functions inherited from itk::ProcessObject
virtual void	AbortGenerateDataOff ()

virtual void	AbortGenerateDataOn ()

virtual void	EnlargeOutputRequestedRegion (DataObject *output)

virtual const bool &	GetAbortGenerateData () const

DataObjectPointerArray	GetIndexedInputs ()

DataObjectPointerArray	GetIndexedOutputs ()

NameArray	GetInputNames () const

DataObjectPointerArray	GetInputs ()

MultiThreaderType *	GetMultiThreader () const

const char *	GetNameOfClass () const override

DataObjectPointerArraySizeType	GetNumberOfIndexedInputs () const

DataObjectPointerArraySizeType	GetNumberOfIndexedOutputs () const

DataObjectPointerArraySizeType	GetNumberOfInputs () const

DataObjectPointerArraySizeType	GetNumberOfOutputs () const

virtual DataObjectPointerArraySizeType	GetNumberOfValidRequiredInputs () const

NameArray	GetOutputNames () const

DataObjectPointerArray	GetOutputs ()

virtual float	GetProgress () const

NameArray	GetRequiredInputNames () const

bool	HasInput (const DataObjectIdentifierType &key) const

bool	HasOutput (const DataObjectIdentifierType &key) const

void	IncrementProgress (float increment)

virtual void	PrepareOutputs ()

virtual void	PropagateRequestedRegion (DataObject *output)

virtual void	ResetPipeline ()

virtual void	SetAbortGenerateData (bool _arg)

void	SetMultiThreader (MultiThreaderType *threader)

virtual void	Update ()

virtual void	UpdateLargestPossibleRegion ()

virtual void	UpdateOutputData (DataObject *output)

virtual void	UpdateOutputInformation ()

void	UpdateProgress (float progress)

virtual void	SetReleaseDataFlag (bool val)

virtual bool	GetReleaseDataFlag () const

void	ReleaseDataFlagOn ()

void	ReleaseDataFlagOff ()

virtual void	SetReleaseDataBeforeUpdateFlag (bool _arg)

virtual const bool &	GetReleaseDataBeforeUpdateFlag () const

virtual void	ReleaseDataBeforeUpdateFlagOn ()

virtual void	ReleaseDataBeforeUpdateFlagOff ()

virtual void	SetNumberOfWorkUnits (ThreadIdType _arg)

virtual const ThreadIdType &	GetNumberOfWorkUnits () const

Public Member Functions inherited from itk::Object
unsigned long	AddObserver (const EventObject &event, Command *cmd) const

unsigned long	AddObserver (const EventObject &event, std::function< void(const EventObject &)> function) const

LightObject::Pointer	CreateAnother () const override

virtual void	DebugOff () const

virtual void	DebugOn () const

Command *	GetCommand (unsigned long tag)

bool	GetDebug () const

MetaDataDictionary &	GetMetaDataDictionary ()

const MetaDataDictionary &	GetMetaDataDictionary () const

virtual ModifiedTimeType	GetMTime () const

virtual const TimeStamp &	GetTimeStamp () const

bool	HasObserver (const EventObject &event) const

void	InvokeEvent (const EventObject &)

void	InvokeEvent (const EventObject &) const

virtual void	Modified () const

void	Register () const override

void	RemoveAllObservers ()

void	RemoveObserver (unsigned long tag) const

void	SetDebug (bool debugFlag) const

void	SetReferenceCount (int) override

void	UnRegister () const noexcept override

void	SetMetaDataDictionary (const MetaDataDictionary &rhs)

void	SetMetaDataDictionary (MetaDataDictionary &&rrhs)

virtual void	SetObjectName (std::string _arg)

virtual const std::string &	GetObjectName () const

Public Member Functions inherited from itk::LightObject
Pointer	Clone () const

virtual void	Delete ()

virtual int	GetReferenceCount () const

void	Print (std::ostream &os, Indent indent=0) const

Static Public Member Functions
static Pointer	New ()

Static Public Member Functions inherited from itk::ImageToImageFilter< TLabelImage, TLabelImage >
static double	GetGlobalDefaultCoordinateTolerance ()

static double	GetGlobalDefaultCoordinateTolerance ()

static double	GetGlobalDefaultDirectionTolerance ()

static double	GetGlobalDefaultDirectionTolerance ()

static void	SetGlobalDefaultCoordinateTolerance (double)

static void	SetGlobalDefaultCoordinateTolerance (double)

static void	SetGlobalDefaultDirectionTolerance (double)

static void	SetGlobalDefaultDirectionTolerance (double)

Static Public Member Functions inherited from itk::Object
static bool	GetGlobalWarningDisplay ()

static void	GlobalWarningDisplayOff ()

static void	GlobalWarningDisplayOn ()

static Pointer	New ()

static void	SetGlobalWarningDisplay (bool val)

Static Public Member Functions inherited from itk::LightObject
static void	BreakOnError ()

static Pointer	New ()

Static Public Attributes
static constexpr unsigned int	ImageDimension = TLabelImage::ImageDimension

Static Public Attributes inherited from itk::ImageToImageFilter< TLabelImage, TLabelImage >
static constexpr unsigned int	InputImageDimension

static constexpr unsigned int	OutputImageDimension

Static Public Attributes inherited from itk::ImageSource< TLabelImage >
static constexpr unsigned int	OutputImageDimension

Protected Member Functions
void	GenerateData () override

	LabelGeometryImageFilter ()

void	PrintSelf (std::ostream &os, Indent indent) const override

	~LabelGeometryImageFilter () override=default

Protected Member Functions inherited from itk::ImageToImageFilter< TLabelImage, TLabelImage >
virtual void	CallCopyInputRegionToOutputRegion (OutputImageRegionType &destRegion, const InputImageRegionType &srcRegion)

virtual void	CallCopyOutputRegionToInputRegion (InputImageRegionType &destRegion, const OutputImageRegionType &srcRegion)

void	GenerateInputRequestedRegion () override

	ImageToImageFilter ()

void	VerifyInputInformation () const override

	~ImageToImageFilter () override=default

Protected Member Functions inherited from itk::ImageSource< TLabelImage >
virtual void	AfterThreadedGenerateData ()

virtual void	AllocateOutputs ()

virtual void	BeforeThreadedGenerateData ()

void	ClassicMultiThread (ThreadFunctionType callbackFunction)

virtual const ImageRegionSplitterBase *	GetImageRegionSplitter () const

	ImageSource ()

virtual unsigned int	SplitRequestedRegion (unsigned int i, unsigned int pieces, OutputImageRegionType &splitRegion)

	~ImageSource () override=default

virtual void	ThreadedGenerateData (const OutputImageRegionType &region, ThreadIdType threadId)

virtual void	DynamicThreadedGenerateData (const OutputImageRegionType &outputRegionForThread)

virtual bool	GetDynamicMultiThreading () const

virtual void	SetDynamicMultiThreading (bool _arg)

virtual void	DynamicMultiThreadingOn ()

virtual void	DynamicMultiThreadingOff ()

Protected Member Functions inherited from itk::ProcessObject
virtual void	AddInput (DataObject *input)

void	AddOptionalInputName (const DataObjectIdentifierType &)

void	AddOptionalInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx)

virtual void	AddOutput (DataObject *output)

bool	AddRequiredInputName (const DataObjectIdentifierType &)

bool	AddRequiredInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx)

virtual void	CacheInputReleaseDataFlags ()

virtual void	GenerateOutputInformation ()

virtual void	GenerateOutputRequestedRegion (DataObject *output)

DataObject *	GetInput (const DataObjectIdentifierType &key)

const DataObject *	GetInput (const DataObjectIdentifierType &key) const

virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredInputs () const

virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredOutputs () const

bool	IsIndexedInputName (const DataObjectIdentifierType &) const

bool	IsIndexedOutputName (const DataObjectIdentifierType &) const

bool	IsRequiredInputName (const DataObjectIdentifierType &) const

DataObjectPointerArraySizeType	MakeIndexFromInputName (const DataObjectIdentifierType &name) const

DataObjectPointerArraySizeType	MakeIndexFromOutputName (const DataObjectIdentifierType &name) const

DataObjectIdentifierType	MakeNameFromInputIndex (DataObjectPointerArraySizeType idx) const

DataObjectIdentifierType	MakeNameFromOutputIndex (DataObjectPointerArraySizeType idx) const

void	PrintSelf (std::ostream &os, Indent indent) const override

	ProcessObject ()

virtual void	PropagateResetPipeline ()

virtual void	PushBackInput (const DataObject *input)

virtual void	PushFrontInput (const DataObject *input)

virtual void	ReleaseInputs ()

virtual void	RemoveInput (const DataObjectIdentifierType &key)

virtual void	RemoveInput (DataObjectPointerArraySizeType)

virtual void	RemoveOutput (const DataObjectIdentifierType &key)

virtual void	RemoveOutput (DataObjectPointerArraySizeType idx)

bool	RemoveRequiredInputName (const DataObjectIdentifierType &)

virtual void	RestoreInputReleaseDataFlags ()

virtual void	SetInput (const DataObjectIdentifierType &key, DataObject *input)

virtual void	SetNthInput (DataObjectPointerArraySizeType idx, DataObject *input)

virtual void	SetNthOutput (DataObjectPointerArraySizeType idx, DataObject *output)

void	SetNumberOfIndexedInputs (DataObjectPointerArraySizeType num)

void	SetNumberOfIndexedOutputs (DataObjectPointerArraySizeType num)

virtual void	SetNumberOfRequiredInputs (DataObjectPointerArraySizeType)

virtual void	SetNumberOfRequiredOutputs (DataObjectPointerArraySizeType _arg)

virtual void	SetOutput (const DataObjectIdentifierType &name, DataObject *output)

virtual void	SetPrimaryInput (DataObject *object)

virtual void	SetPrimaryOutput (DataObject *object)

void	SetRequiredInputNames (const NameArray &)

virtual void	VerifyPreconditions () const

	~ProcessObject () override

DataObject *	GetInput (DataObjectPointerArraySizeType idx)

const DataObject *	GetInput (DataObjectPointerArraySizeType idx) const

DataObject *	GetPrimaryInput ()

const DataObject *	GetPrimaryInput () const

virtual void	SetPrimaryInputName (const DataObjectIdentifierType &key)

virtual const char *	GetPrimaryInputName () const

DataObject *	GetOutput (const DataObjectIdentifierType &key)

const DataObject *	GetOutput (const DataObjectIdentifierType &key) const

virtual void	SetPrimaryOutputName (const DataObjectIdentifierType &key)

virtual const char *	GetPrimaryOutputName () const

DataObject *	GetOutput (DataObjectPointerArraySizeType i)

const DataObject *	GetOutput (DataObjectPointerArraySizeType i) const

DataObject *	GetPrimaryOutput ()

const DataObject *	GetPrimaryOutput () const

virtual bool	GetThreaderUpdateProgress () const

virtual void	ThreaderUpdateProgressOn ()

virtual void	ThreaderUpdateProgressOff ()

virtual void	SetThreaderUpdateProgress (bool arg)

Protected Member Functions inherited from itk::Object
	Object ()

bool	PrintObservers (std::ostream &os, Indent indent) const

virtual void	SetTimeStamp (const TimeStamp &timeStamp)

	~Object () override

Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer	InternalClone () const

	LightObject ()

virtual void	PrintHeader (std::ostream &os, Indent indent) const

virtual void	PrintTrailer (std::ostream &os, Indent indent) const

virtual	~LightObject ()

Private Member Functions
bool	CalculateOrientedBoundingBoxVertices (vnl_symmetric_eigensystem< double > eig, LabelGeometry &m_LabelGeometry)

Private Attributes
LabelsType	m_AllLabels {}

bool	m_CalculateOrientedBoundingBox {}

bool	m_CalculateOrientedIntensityRegions {}

bool	m_CalculateOrientedLabelRegions {}

bool	m_CalculatePixelIndices {}

LabelGeometry	m_LabelGeometry {}

MapType	m_LabelGeometryMapper {}

Additional Inherited Members
Protected Types inherited from itk::ImageToImageFilter< TLabelImage, TLabelImage >
using	InputToOutputRegionCopierType

using	OutputToInputRegionCopierType

Static Protected Member Functions inherited from itk::ImageSource< TLabelImage >
static const ImageRegionSplitterBase *	GetGlobalDefaultSplitter ()

static ITK_THREAD_RETURN_FUNCTION_CALL_CONVENTION	ThreaderCallback (void *arg)

Static Protected Member Functions inherited from itk::ProcessObject
template<typename TSourceObject>
static void	MakeRequiredOutputs (TSourceObject &sourceObject, const DataObjectPointerArraySizeType numberOfRequiredOutputs)

static constexpr float	progressFixedToFloat (uint32_t fixed)

static uint32_t	progressFloatToFixed (float f)

Protected Attributes inherited from itk::ImageSource< TLabelImage >
bool	m_DynamicMultiThreading

Protected Attributes inherited from itk::ProcessObject
TimeStamp	m_OutputInformationMTime {}

bool	m_Updating {}

Protected Attributes inherited from itk::LightObject
std::atomic< int >	m_ReferenceCount {}

Member Typedef Documentation

◆ AxesLengthType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::AxesLengthType = itk::FixedArray<RealType, Self::ImageDimension>

Axes Length-related type alias

Definition at line 140 of file itkLabelGeometryImageFilter.h.

◆ BoundingBoxFloatType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::BoundingBoxFloatType = itk::FixedArray<float, Self::ImageDimension * 2>

Definition at line 133 of file itkLabelGeometryImageFilter.h.

◆ BoundingBoxType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::BoundingBoxType = itk::FixedArray<typename LabelIndexType::IndexValueType, Self::ImageDimension * 2>

Bounding Box-related type alias

Definition at line 132 of file itkLabelGeometryImageFilter.h.

◆ BoundingBoxVerticesType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::BoundingBoxVerticesType = std::vector<LabelPointType>

Definition at line 137 of file itkLabelGeometryImageFilter.h.

◆ ConstPointer

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::ConstPointer = SmartPointer<const Self>

Definition at line 94 of file itkLabelGeometryImageFilter.h.

◆ DataObjectPointer

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::DataObjectPointer = typename DataObject::Pointer

Smart Pointer type to a DataObject.

Definition at line 126 of file itkLabelGeometryImageFilter.h.

◆ IndexArrayType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::IndexArrayType = itk::FixedArray<typename LabelIndexType::IndexValueType, Self::ImageDimension>

Index array type alias

Definition at line 143 of file itkLabelGeometryImageFilter.h.

◆ IndexType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::IndexType = typename TIntensityImage::IndexType

Definition at line 107 of file itkLabelGeometryImageFilter.h.

◆ InputImagePointer

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::InputImagePointer = typename TIntensityImage::Pointer

Definition at line 104 of file itkLabelGeometryImageFilter.h.

◆ IntensityImageType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::IntensityImageType = TIntensityImage

Image related type alias.

Definition at line 103 of file itkLabelGeometryImageFilter.h.

◆ LabelImagePointer

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::LabelImagePointer = typename TLabelImage::Pointer

Definition at line 112 of file itkLabelGeometryImageFilter.h.

◆ LabelImageType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::LabelImageType = TLabelImage

Label image related type alias.

Definition at line 111 of file itkLabelGeometryImageFilter.h.

◆ LabelIndexType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::LabelIndexType = typename TLabelImage::IndexType

Definition at line 115 of file itkLabelGeometryImageFilter.h.

◆ LabelIndicesType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::LabelIndicesType = std::vector<LabelIndexType>

vector of indices

Definition at line 149 of file itkLabelGeometryImageFilter.h.

◆ LabelPixelType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::LabelPixelType = typename TLabelImage::PixelType

Definition at line 116 of file itkLabelGeometryImageFilter.h.

◆ LabelPointType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::LabelPointType = typename TLabelImage::PointType

Definition at line 117 of file itkLabelGeometryImageFilter.h.

◆ LabelRegionType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::LabelRegionType = typename TLabelImage::RegionType

Definition at line 113 of file itkLabelGeometryImageFilter.h.

◆ LabelSizeType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::LabelSizeType = typename TLabelImage::SizeType

Definition at line 114 of file itkLabelGeometryImageFilter.h.

◆ LabelsType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::LabelsType = std::vector<LabelPixelType>

vector of labels

Definition at line 146 of file itkLabelGeometryImageFilter.h.

◆ MapConstIterator

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::MapConstIterator = typename std::map<LabelPixelType, LabelGeometry>::const_iterator

Definition at line 253 of file itkLabelGeometryImageFilter.h.

◆ MapIterator

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::MapIterator = typename std::map<LabelPixelType, LabelGeometry>::iterator

Definition at line 252 of file itkLabelGeometryImageFilter.h.

◆ MapType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::MapType = std::map<LabelPixelType, LabelGeometry>

Type of the map used to store data per label

Definition at line 251 of file itkLabelGeometryImageFilter.h.

◆ MatrixType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::MatrixType = vnl_matrix<double>

Matrix type

Definition at line 155 of file itkLabelGeometryImageFilter.h.

◆ PixelType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::PixelType = typename TIntensityImage::PixelType

Definition at line 108 of file itkLabelGeometryImageFilter.h.

◆ Pointer

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::Pointer = SmartPointer<Self>

Definition at line 93 of file itkLabelGeometryImageFilter.h.

◆ RealObjectType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::RealObjectType = SimpleDataObjectDecorator<RealType>

Type of DataObjects used for scalar outputs

Definition at line 129 of file itkLabelGeometryImageFilter.h.

◆ RealType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::RealType = typename NumericTraits<PixelType>::RealType

Type to use for computations.

Definition at line 123 of file itkLabelGeometryImageFilter.h.

◆ RegionType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::RegionType = typename TIntensityImage::RegionType

Definition at line 105 of file itkLabelGeometryImageFilter.h.

◆ Self

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::Self = LabelGeometryImageFilter

Standard Self type alias

Definition at line 91 of file itkLabelGeometryImageFilter.h.

◆ SizeType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::SizeType = typename TIntensityImage::SizeType

Definition at line 106 of file itkLabelGeometryImageFilter.h.

◆ Superclass

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::Superclass = ImageToImageFilter<TLabelImage, TIntensityImage>

Definition at line 92 of file itkLabelGeometryImageFilter.h.

◆ VectorType

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

using itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::VectorType = std::vector<double>

Vector type

Definition at line 152 of file itkLabelGeometryImageFilter.h.

Constructor & Destructor Documentation

◆ LabelGeometryImageFilter()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::LabelGeometryImageFilter ( )

protected

Referenced by GetNameOfClass().

◆ ~LabelGeometryImageFilter()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::~LabelGeometryImageFilter ( )

overrideprotecteddefault

Member Function Documentation

◆ CalculateOrientedBoundingBoxOff()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

virtual void itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::CalculateOrientedBoundingBoxOff ( )

virtual

◆ CalculateOrientedBoundingBoxOn()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

virtual void itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::CalculateOrientedBoundingBoxOn ( )

virtual

◆ CalculateOrientedBoundingBoxVertices()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

bool itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::CalculateOrientedBoundingBoxVertices	(	vnl_symmetric_eigensystem< double >	eig,
		LabelGeometry &	m_LabelGeometry )

private

References m_LabelGeometry.

◆ CalculateOrientedIntensityRegionsOff()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

virtual void itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::CalculateOrientedIntensityRegionsOff ( )

virtual

◆ CalculateOrientedIntensityRegionsOn()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

virtual void itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::CalculateOrientedIntensityRegionsOn ( )

virtual

◆ CalculateOrientedLabelRegionsOff()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

virtual void itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::CalculateOrientedLabelRegionsOff ( )

virtual

◆ CalculateOrientedLabelRegionsOn()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

virtual void itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::CalculateOrientedLabelRegionsOn ( )

virtual

◆ CalculatePixelIndicesOff()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

virtual void itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::CalculatePixelIndicesOff ( )

virtual

◆ CalculatePixelIndicesOn()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

virtual void itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::CalculatePixelIndicesOn ( )

virtual

◆ CreateAnother()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

virtual::itk::LightObject::Pointer itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::CreateAnother ( ) const

virtual

Create an object from an instance, potentially deferring to a factory. This method allows you to create an instance of an object that is exactly the same type as the referring object. This is useful in cases where an object has been cast back to a base class.

Reimplemented from itk::LightObject.

◆ GenerateData()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

void itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GenerateData ( )

overrideprotectedvirtual

A version of GenerateData() specific for image processing filters. This implementation will split the processing across multiple threads. The buffer is allocated by this method. Then the BeforeThreadedGenerateData() method is called (if provided). Then, a series of threads are spawned each calling DynamicThreadedGenerateData(). After all the threads have completed processing, the AfterThreadedGenerateData() method is called (if provided). If an image processing filter cannot be threaded, the filter should provide an implementation of GenerateData(). That implementation is responsible for allocating the output buffer. If a filter can be threaded, it should NOT provide a GenerateData() method but should provide a DynamicThreadedGenerateData() instead.

See also: ThreadedGenerateData()

Reimplemented from itk::ImageSource< TLabelImage >.

◆ GetAxesLength()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

AxesLengthType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetAxesLength ( LabelPixelType label ) const

Return the axes length for a label.

◆ GetBoundingBox()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

BoundingBoxType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetBoundingBox ( LabelPixelType label ) const

Return the computed bounding box for a label. This is organized in min/max pairs as [min(X), max(X), min(Y), max(Y), min(Z), max(Z),...]

◆ GetBoundingBoxSize()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

LabelSizeType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetBoundingBoxSize ( LabelPixelType label ) const

Return the size of the bounding box.

◆ GetBoundingBoxVolume()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

RealType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetBoundingBoxVolume ( LabelPixelType label ) const

Return the volume of the bounding box.

◆ GetCalculateOrientedBoundingBox()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

virtual bool itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetCalculateOrientedBoundingBox ( )

virtual

◆ GetCalculateOrientedIntensityRegions()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

virtual bool itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetCalculateOrientedIntensityRegions ( )

virtual

◆ GetCalculateOrientedLabelRegions()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

virtual bool itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetCalculateOrientedLabelRegions ( )

virtual

◆ GetCalculatePixelIndices()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

virtual bool itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetCalculatePixelIndices ( )

virtual

◆ GetCentroid()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

LabelPointType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetCentroid ( LabelPixelType label ) const

Return the unweighted centroid for a label.

◆ GetEccentricity()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

RealType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetEccentricity ( LabelPixelType label ) const

Return the eccentricity for a label.

◆ GetEigenvalues()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

VectorType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetEigenvalues ( LabelPixelType label ) const

Return the eigenvalues as a vector.

◆ GetEigenvectors()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

MatrixType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetEigenvectors ( LabelPixelType label ) const

Return the eigenvectors as a matrix.

◆ GetElongation()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

RealType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetElongation ( LabelPixelType label ) const

Return the elongation for a label. This is defined as the length of the major axis divided by the length of the minor axis.

◆ GetIntegratedIntensity()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

RealType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetIntegratedIntensity ( LabelPixelType label ) const

Return the computed integrated pixel intensity for a label.

◆ GetIntensityInput()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

const TIntensityImage * itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetIntensityInput ( ) const

inline

Get the label image

Definition at line 350 of file itkLabelGeometryImageFilter.h.

References itk::ProcessObject::GetInput().

◆ GetLabels()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

std::vector< LabelPixelType > itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetLabels ( ) const

inline

Get the labels that are in the image.

Definition at line 378 of file itkLabelGeometryImageFilter.h.

References m_AllLabels.

◆ GetMajorAxisLength()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

RealType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetMajorAxisLength ( LabelPixelType label ) const

Return the major axis length for a label. This is a convenience class that returns the longest length from GetAxesLength.

◆ GetMinorAxisLength()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

RealType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetMinorAxisLength ( LabelPixelType label ) const

Return the minor axis length for a label. This is a convenience class that returns the shortest length from GetAxesLength.

◆ GetNameOfClass()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

const char * itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetNameOfClass ( ) const

overridevirtual

See also: LightObject::GetNameOfClass()

Reimplemented from itk::ImageToImageFilter< TLabelImage, TLabelImage >.

References LabelGeometryImageFilter().

◆ GetNumberOfLabels()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

SizeValueType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetNumberOfLabels ( ) const

inline

Definition at line 371 of file itkLabelGeometryImageFilter.h.

References GetNumberOfObjects().

◆ GetNumberOfObjects()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

SizeValueType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetNumberOfObjects ( ) const

inline

Get the number of labels used

Definition at line 365 of file itkLabelGeometryImageFilter.h.

References m_LabelGeometryMapper.

Referenced by GetNumberOfLabels().

◆ GetOrientation()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

RealType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetOrientation ( LabelPixelType label ) const

Return the orientation for a label defined in radians.

◆ GetOrientedBoundingBoxOrigin()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

LabelPointType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetOrientedBoundingBoxOrigin ( LabelPixelType label ) const

Return the origin of the oriented bounding box.

◆ GetOrientedBoundingBoxSize()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

LabelPointType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetOrientedBoundingBoxSize ( LabelPixelType label ) const

Return the size of the oriented bounding box.

◆ GetOrientedBoundingBoxVertices()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

BoundingBoxVerticesType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetOrientedBoundingBoxVertices ( LabelPixelType label ) const

Return the oriented bounding box vertices. The order of the vertices corresponds with binary counting, where min is zero and max is one. For example, in 2D, binary counting will give [0,0],[0,1],[1,0],[1,1], which corresponds to [minX,minY],[minX,maxY],[maxX,minY],[maxX,maxY]. Each vertex is defined as an ND point.

◆ GetOrientedBoundingBoxVolume()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

RealType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetOrientedBoundingBoxVolume ( LabelPixelType label ) const

Return the volume of the oriented bounding box.

◆ GetOrientedIntensityImage()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

TIntensityImage * itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetOrientedIntensityImage ( LabelPixelType label ) const

Return the intensity region defined by the oriented bounding box.

◆ GetOrientedLabelImage()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

TLabelImage * itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetOrientedLabelImage ( LabelPixelType label ) const

Return the label region defined by the oriented bounding box.

◆ GetPixelIndices()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

LabelIndicesType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetPixelIndices ( LabelPixelType label ) const

Return the all pixel indices for a label.

◆ GetRegion()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

RegionType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetRegion ( LabelPixelType label ) const

Return the region defined by the bounding box.

◆ GetRotationMatrix()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

MatrixType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetRotationMatrix ( LabelPixelType label ) const

Return the rotation matrix defined by the eigenvalues/eigenvectors.

◆ GetVolume()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

SizeValueType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetVolume ( LabelPixelType label ) const

Return the number of pixels for a label. This is the same as the volume and the zero order moment

◆ GetWeightedCentroid()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

LabelPointType itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::GetWeightedCentroid ( LabelPixelType label ) const

Return the weighted centroid for a label.

◆ HasLabel()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

bool itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::HasLabel ( LabelPixelType label ) const

inline

Does the specified label exist? Can only be called after a call to Update().

Definition at line 358 of file itkLabelGeometryImageFilter.h.

References m_LabelGeometryMapper.

◆ New()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

static Pointer itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::New ( )

static

Method for creation through the object factory.

◆ PrintSelf()

template<typename TLabelImage, typename TIntensityImage = TLabelImage>

void itk::LabelGeometryImageFilter< TLabelImage, TIntensityImage >::PrintSelf	(	std::ostream &	os,
		Indent	indent ) const

overrideprotectedvirtual

Methods invoked by Print() to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from itk::ImageToImageFilter< TLabelImage, TLabelImage >.