#include <itkVoronoiSegmentationRGBImageFilter.h>

Detailed Description

template<typename TInputImage, typename TOutputImage>
class itk::VoronoiSegmentationRGBImageFilter< TInputImage, TOutputImage >

Segmentation of 2D RGB images using Voronoi Diagram. This is not a standard 3 channel image filter, it also investigates the HSV color space information. from RGBHSV, the user can specify or by giving a prior binary mask, the algorithm will decide which 3 channels out of the 6 channels will be used for homogeneity testing. the homogeneity testing requires all the three testing channels to have the similar mean and standard deviation value from the gold-standard in the sense that the difference will be under the tolerance value.

Input parameters are: (1) Image data, in the format: itkImage<itkVector<PixelType,3>, 2>. (2) Object statistics: mean and standard deviation (3) Tolerance level for the classifier. This level is usually set around the mean and standard deviation values.

These parameters can also be automatically set by providing a binary image prior.

Detailed information about this algorithm can be found in: " Semi-automated color segmentation of anatomical tissue," C. Imelinska, M. Downes, and W. Yuan Computerized Medical Imaging and Graphics, Vol.24, pp 173-180, 2000.

Definition at line 54 of file itkVoronoiSegmentationRGBImageFilter.h.

Inheritance diagram for itk::VoronoiSegmentationRGBImageFilter< TInputImage, TOutputImage >:

Collaboration diagram for itk::VoronoiSegmentationRGBImageFilter< TInputImage, TOutputImage >:

Public Types
using	ConstPointer = SmartPointer< const Self >

using	Pointer = SmartPointer< Self >

using	RGBHCVImage = Image< RGBHCVPixel >

using	RGBHCVPixel = Vector< float, 6 >

using	Self = VoronoiSegmentationRGBImageFilter

using	Superclass = VoronoiSegmentationImageFilterBase< TInputImage, TOutputImage >

Public Types inherited from itk::VoronoiSegmentationImageFilterBase< TInputImage, TOutputImage >
using	BinaryObjectImage = Image< unsigned char, 2 >

using	BinaryObjectImagePointer = typename BinaryObjectImage::Pointer

using	CellAutoPointer = typename VoronoiDiagram::CellAutoPointer

using	CellType = typename VoronoiDiagram::CellType

using	ConstPointer = SmartPointer< const Self >

using	EdgeInfo = typename VoronoiDiagram::VoronoiEdge

using	EdgeIterator = typename VoronoiDiagram::VoronoiEdgeIterator

using	IndexList = std::vector< IndexType >

using	IndexType = typename TInputImage::IndexType

using	InputImageConstPointer = typename TInputImage::ConstPointer

using	InputImagePointer = typename TInputImage::Pointer

using	InputImageType = TInputImage

using	NeighborIdIterator = typename VoronoiDiagram::NeighborIdIterator

using	OutputImageType = TOutputImage

using	OutputPixelType = typename TOutputImage::PixelType

using	PixelType = typename TInputImage::PixelType

using	Pointer = SmartPointer< Self >

using	PointIdIterator = typename CellType::PointIdIterator

using	PointType = typename VoronoiDiagram::PointType

using	PointTypeDeque = std::deque< PointType >

using	PointTypeVector = std::vector< PointType >

using	RegionType = typename TInputImage::RegionType

using	SeedsIterator = typename VoronoiDiagram::SeedsIterator

using	SeedsType = typename VoronoiDiagram::SeedsType

using	Self = VoronoiSegmentationImageFilterBase

using	SizeType = typename TInputImage::SizeType

using	Superclass = ImageToImageFilter< TInputImage, TOutputImage >

using	VDImage = Image< unsigned char, 2 >

using	VDImagePointer = typename VDImage::Pointer

using	VoronoiDiagram = VoronoiDiagram2D< double >

using	VoronoiDiagramGenerator = VoronoiDiagram2DGenerator< double >

using	VoronoiPointer = typename VoronoiDiagram::Pointer

Public Types inherited from itk::ImageToImageFilter< TInputImage, TOutputImage >
using	ConstPointer = SmartPointer< const Self >

using	InputImageConstPointer = typename InputImageType::ConstPointer

using	InputImagePixelType = typename InputImageType::PixelType

using	InputImagePointer = typename InputImageType::Pointer

using	InputImageRegionType = typename InputImageType::RegionType

using	InputImageType = TInputImage

using	Pointer = SmartPointer< Self >

using	Self = ImageToImageFilter

using	Superclass = ImageSource< TOutputImage >

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

using	DataObjectIdentifierType = Superclass::DataObjectIdentifierType

using	DataObjectPointer = DataObject::Pointer

using	DataObjectPointerArraySizeType = Superclass::DataObjectPointerArraySizeType

using	OutputImagePixelType = typename OutputImageType::PixelType

using	OutputImagePointer = typename OutputImageType::Pointer

using	OutputImageRegionType = typename OutputImageType::RegionType

using	OutputImageType = TOutputImage

using	Pointer = SmartPointer< Self >

using	Self = ImageSource

using	Superclass = ProcessObject

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
const char *	GetNameOfClass () const override

void	GetTestMean (unsigned int x[3])

void	GetTestSTD (unsigned int x[3])

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

void	SetInput (const InputImageType *input) override

void	SetInput (unsigned int, const InputImageType *input) override

void	SetTestMean (unsigned int t1, unsigned int t2, unsigned int t3)

void	SetTestSTD (unsigned int t1, unsigned int t2, unsigned int t3)

void	TakeAPrior (const BinaryObjectImage *aprior) override


void	SetMeanPercentError (const double x[6])

void	SetSTDPercentError (const double x[6])

void	GetMeanPercentError (double x[6])

void	GetSTDPercentError (double x[6])

void	GetMean (double x[6])

void	GetSTD (double x[6])

void	SetMean (const double x[6])

void	SetSTD (const double x[6])

void	GetMeanTolerance (double x[6])

void	GetSTDTolerance (double x[6])


virtual void	SetMaxValueOfRGB (double _arg)

virtual double	GetMaxValueOfRGB () const

Public Member Functions inherited from itk::VoronoiSegmentationImageFilterBase< TInputImage, TOutputImage >
void	BeforeNextStep ()

void	DrawDiagram (VDImagePointer result, unsigned char incolor, unsigned char outcolor, unsigned char boundcolor)

void	EnlargeOutputRequestedRegion (DataObject *output) override

void	GenerateInputRequestedRegion () override

virtual int	GetLastStepSeeds () const

const char *	GetNameOfClass () const override

virtual int	GetNumberOfSeedsToAdded () const

PointType	GetSeed (int SeedID)

VoronoiPointer	GetVoronoiDiagram ()

virtual void	MakeSegmentBoundary ()

virtual void	MakeSegmentObject ()

void	RunSegment ()

void	RunSegmentOneStep ()

virtual void	SetNumberOfSeeds (int _arg)

virtual int	GetNumberOfSeeds () const

virtual void	SetMinRegion (SizeValueType _arg)

virtual SizeValueType	GetMinRegion () const

virtual void	SetSteps (int _arg)

virtual int	GetSteps () const

virtual void	SetUseBackgroundInAPrior (bool _arg)

virtual bool	GetUseBackgroundInAPrior () const

virtual void	SetOutputBoundary (bool _arg)

virtual bool	GetOutputBoundary () const

virtual void	SetInteractiveSegmentation (bool _arg)

virtual bool	GetInteractiveSegmentation () const

virtual void	InteractiveSegmentationOn ()

virtual void	SetMeanDeviation (double _arg)

virtual double	GetMeanDeviation () const

virtual void	SetSize (SizeType _arg)

virtual SizeType	GetSize () const

void	SetSeeds (int num, SeedsIterator begin)

void	SetSeeds (SeedsType &seeds)

Public Member Functions inherited from itk::ImageToImageFilter< TInputImage, TOutputImage >
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 DataObjectIdentifierType &key, DataObject *input)

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< TOutputImage >
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	AbortGenerateDataOn ()

virtual const bool &	GetAbortGenerateData () const

DataObjectPointerArray	GetIndexedInputs ()

DataObjectPointerArray	GetIndexedOutputs ()

NameArray	GetInputNames () const

DataObjectPointerArray	GetInputs ()

MultiThreaderType *	GetMultiThreader () const

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	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::VoronoiSegmentationImageFilterBase< TInputImage, TOutputImage >
static Pointer	New ()

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

static double	GetGlobalDefaultDirectionTolerance ()

static void	SetGlobalDefaultCoordinateTolerance (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	InputImageDimension = TInputImage::ImageDimension

static constexpr unsigned int	OutputImageDimension = TOutputImage::ImageDimension

Static Public Attributes inherited from itk::VoronoiSegmentationImageFilterBase< TInputImage, TOutputImage >
static constexpr unsigned int	ImageDimension

Static Public Attributes inherited from itk::ImageToImageFilter< TInputImage, TOutputImage >
static constexpr unsigned int	InputImageDimension = TInputImage::ImageDimension

static constexpr unsigned int	OutputImageDimension = TOutputImage::ImageDimension

Static Public Attributes inherited from itk::ImageSource< TOutputImage >
static constexpr unsigned int	OutputImageDimension = TOutputImage::ImageDimension

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

	VoronoiSegmentationRGBImageFilter ()

	~VoronoiSegmentationRGBImageFilter () override=default

Protected Member Functions inherited from itk::VoronoiSegmentationImageFilterBase< TInputImage, TOutputImage >
virtual void	ClassifyDiagram ()

void	drawLine (PointType p1, PointType p2)

void	drawVDline (VDImagePointer result, PointType p1, PointType p2, unsigned char color)

void	FillPolygon (PointTypeDeque vertlist, OutputPixelType color=1)

virtual void	GenerateAddingSeeds ()

void	GenerateData () override

void	GetPixelIndexFromPolygon (PointTypeDeque vertlist, IndexList *PixelPool)

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

	VoronoiSegmentationImageFilterBase ()

	~VoronoiSegmentationImageFilterBase () override=default

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

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

	ImageToImageFilter ()

void	VerifyInputInformation () const override

	~ImageToImageFilter () override=default

virtual void	PushBackInput (const DataObject *input)

virtual void	PushFrontInput (const DataObject *input)

Protected Member Functions inherited from itk::ImageSource< TOutputImage >
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 ()

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

	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	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	TestHomogeneity (IndexList &Plist) override

Private Attributes
double	m_MaxValueOfRGB {}

double	m_Mean [6] {}

double	m_MeanPercentError [6] {}

double	m_MeanTolerance [6] {}

double	m_STD [6] {}

double	m_STDPercentError [6] {}

double	m_STDTolerance [6] {}

unsigned int	m_TestMean [3] {}

unsigned int	m_TestSTD [3] {}

RGBHCVImage::Pointer	m_WorkingImage {}

Additional Inherited Members
Protected Types inherited from itk::ImageToImageFilter< TInputImage, TOutputImage >
using	InputToOutputRegionCopierType = ImageToImageFilterDetail::ImageRegionCopier< Self::OutputImageDimension, Self::InputImageDimension >

using	OutputToInputRegionCopierType = ImageToImageFilterDetail::ImageRegionCopier< Self::InputImageDimension, Self::OutputImageDimension >

Static Protected Member Functions inherited from itk::ImageSource< TOutputImage >
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::VoronoiSegmentationImageFilterBase< TInputImage, TOutputImage >
bool	m_InteractiveSegmentation

std::vector< unsigned char >	m_Label

int	m_LastStepSeeds

double	m_MeanDeviation

SizeValueType	m_MinRegion

int	m_NumberOfBoundary

std::vector< SizeValueType >	m_NumberOfPixels

int	m_NumberOfSeeds

int	m_NumberOfSeedsToAdded

bool	m_OutputBoundary

std::vector< PointType >	m_SeedsToAdded

SizeType	m_Size

int	m_Steps

bool	m_UseBackgroundInAPrior

VoronoiDiagramGenerator::Pointer	m_VDGenerator

VoronoiDiagram::Pointer	m_WorkingVD

Protected Attributes inherited from itk::ImageSource< TOutputImage >
bool	m_DynamicMultiThreading { true }

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

bool	m_Updating {}

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