#include <itkDiscreteHessianGaussianImageFunction.h>

Inheritance diagram for itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >:

Collaboration diagram for itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >:

Detailed Description

template<typename TInputImage, typename TOutput = double>
class itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >

Compute the Hessian Gaussian of an image at a specific location in space by calculating discrete second-order gaussian derivatives. This class is templated over the input image type.

The Initialize() method must be called after setting the parameters and before evaluating the function.

Author: Ivan Macia, VICOMTech, Spain, http://www.vicomtech.es

This implementation was taken from the Insight Journal paper: https://hdl.handle.net/1926/1290

See Also: NeighborhoodOperator; ImageFunction

Definition at line 46 of file itkDiscreteHessianGaussianImageFunction.h.

Public Types
using	ConstPointer = SmartPointer< const Self >

using	ContinuousIndexType = typename Superclass::ContinuousIndexType

using	GaussianDerivativeOperatorArrayType = FixedArray< GaussianDerivativeOperatorType, 3 *Self::ImageDimension2 >

using	GaussianDerivativeOperatorType = itk::GaussianDerivativeOperator< TOutput, Self::ImageDimension2 >

using	IndexType = typename Superclass::IndexType

using	IndexValueType = typename Superclass::IndexValueType

using	InputImageType = typename Superclass::InputImageType

using	InputPixelType = typename Superclass::InputPixelType

enum	InterpolationModeType { NearestNeighbourInterpolation, LinearInterpolation }

using	KernelArrayType = FixedArray< KernelType, Self::ImageDimension2 *(Self::ImageDimension2+1)/2 >

using	KernelType = Neighborhood< TOutput, Self::ImageDimension2 >

using	OperatorImageFunctionPointer = typename OperatorImageFunctionType::Pointer

using	OperatorImageFunctionType = NeighborhoodOperatorImageFunction< InputImageType, TOutput >

using	OutputType = typename Superclass::OutputType

using	Pointer = SmartPointer< Self >

using	PointType = typename Superclass::PointType

using	Self = DiscreteHessianGaussianImageFunction

using	Superclass = ImageFunction< TInputImage, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >, TOutput >

using	TensorType = SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >

using	VarianceArrayType = FixedArray< double, Self::ImageDimension2 >

Public Types inherited from itk::ImageFunction< TInputImage, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >, TOutput >
using	ConstPointer = SmartPointer< const Self >

using	ContinuousIndexType = ContinuousIndex< TOutput, Self::ImageDimension >

using	CoordRepType = TOutput

using	IndexType = typename InputImageType::IndexType

using	IndexValueType = typename InputImageType::IndexValueType

using	InputImageConstPointer = typename InputImageType::ConstPointer

using	InputImageType = TInputImage

using	InputPixelType = typename InputImageType::PixelType

using	OutputType = SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >

using	Pointer = SmartPointer< Self >

using	PointType = Point< TOutput, Self::ImageDimension >

using	Self = ImageFunction

using	Superclass = FunctionBase< Point< TOutput, Self::ImageDimension >, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension > >

Public Types inherited from itk::FunctionBase< Point< TOutput, TInputImage::ImageDimension >, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension > >
using	ConstPointer = SmartPointer< const Self >

using	InputType = Point< TOutput, TInputImage::ImageDimension >

using	OutputType = SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >

using	Pointer = SmartPointer< Self >

using	Self = FunctionBase

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

OutputType	Evaluate (const PointType &point) const override

OutputType	EvaluateAtContinuousIndex (const ContinuousIndexType &index) const override

OutputType	EvaluateAtIndex (const IndexType &index) const override

virtual const char *	GetNameOfClass () const

virtual void	Initialize ()

void	SetInputImage (const InputImageType *ptr) override

void	SetSigma (const double sigma)


virtual void	SetVariance (VarianceArrayType _arg)

virtual const VarianceArrayType	GetVariance () const

virtual void	SetVariance (double data[])


virtual void	SetVariance (double variance)


virtual void	SetMaximumError (double _arg)

virtual double	GetMaximumError () const


virtual void	SetNormalizeAcrossScale (bool _arg)

virtual bool	GetNormalizeAcrossScale () const

virtual void	NormalizeAcrossScaleOn ()

virtual void	NormalizeAcrossScaleOff ()


virtual void	SetUseImageSpacing (bool _arg)

virtual bool	GetUseImageSpacing () const

virtual void	UseImageSpacingOn ()

virtual void	UseImageSpacingOff ()


virtual void	SetMaximumKernelWidth (unsigned int _arg)

virtual unsigned int	GetMaximumKernelWidth () const


virtual void	SetInterpolationMode (InterpolationModeType _arg)

virtual InterpolationModeType	GetInterpolationMode () const

Public Member Functions inherited from itk::ImageFunction< TInputImage, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >, TOutput >
void	ConvertContinuousIndexToNearestIndex (const ContinuousIndexType &cindex, IndexType &index) const

void	ConvertPointToContinuousIndex (const PointType &point, ContinuousIndexType &cindex) const

void	ConvertPointToNearestIndex (const PointType &point, IndexType &index) const

SymmetricSecondRankTensor < TOutput, TInputImage::ImageDimension >	Evaluate (const PointType &point) const override=0

virtual SymmetricSecondRankTensor < TOutput, TInputImage::ImageDimension >	EvaluateAtContinuousIndex (const ContinuousIndexType &index) const =0

virtual SymmetricSecondRankTensor < TOutput, TInputImage::ImageDimension >	EvaluateAtIndex (const IndexType &index) const =0

virtual const ContinuousIndexType &	GetEndContinuousIndex () const

virtual const IndexType &	GetEndIndex () const

const InputImageType *	GetInputImage () const

virtual const ContinuousIndexType &	GetStartContinuousIndex () const

virtual const IndexType &	GetStartIndex () const

virtual void	SetInputImage (const InputImageType *ptr)

virtual bool	IsInsideBuffer (const IndexType &index) const

virtual bool	IsInsideBuffer (const ContinuousIndexType &index) const

virtual bool	IsInsideBuffer (const PointType &point) const

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

unsigned long	AddObserver (const EventObject &event, Command *) const

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)

void	SetDebug (bool debugFlag) const

void	SetReferenceCount (int) override

void	UnRegister () const noexceptoverride

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
virtual void	Delete ()

virtual int	GetReferenceCount () const

	itkCloneMacro (Self)

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

Static Public Member Functions
static Pointer	New ()

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

static void	GlobalWarningDisplayOff ()

static void	GlobalWarningDisplayOn ()

static Pointer	New ()

static void	SetGlobalWarningDisplay (bool flag)

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

static Pointer	New ()

Static Public Attributes
static constexpr unsigned int	ImageDimension2 = InputImageType::ImageDimension

Static Public Attributes inherited from itk::ImageFunction< TInputImage, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >, TOutput >
static constexpr unsigned int	ImageDimension

Protected Member Functions
	DiscreteHessianGaussianImageFunction ()

	DiscreteHessianGaussianImageFunction (const Self &)

void	operator= (const Self &)

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

void	RecomputeGaussianKernel ()

	~DiscreteHessianGaussianImageFunction () override

Protected Member Functions inherited from itk::ImageFunction< TInputImage, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >, TOutput >
	ImageFunction ()

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

	~ImageFunction () override=default

Protected Member Functions inherited from itk::FunctionBase< Point< TOutput, TInputImage::ImageDimension >, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension > >
	FunctionBase ()=default

	~FunctionBase () override=default

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

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

virtual void	SetTimeStamp (const TimeStamp &time)

	~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 Attributes
InterpolationModeType	m_InterpolationMode

KernelArrayType	m_KernelArray

double	m_MaximumError

unsigned int	m_MaximumKernelWidth

bool	m_NormalizeAcrossScale

GaussianDerivativeOperatorArrayType	m_OperatorArray

OperatorImageFunctionPointer	m_OperatorImageFunction

bool	m_UseImageSpacing

VarianceArrayType	m_Variance

Additional Inherited Members
Protected Attributes inherited from itk::ImageFunction< TInputImage, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >, TOutput >
ContinuousIndexType	m_EndContinuousIndex

IndexType	m_EndIndex

InputImageConstPointer	m_Image

ContinuousIndexType	m_StartContinuousIndex

IndexType	m_StartIndex

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