#include <itkDiscreteHessianGaussianImageFunction.h>

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

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

Detailed Description

template<class TInputImage, class 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: http://hdl.handle.net/1926/1290

See Also: NeighborhoodOperator; ImageFunction

Definition at line 46 of file itkDiscreteHessianGaussianImageFunction.h.

Public Types
typedef SmartPointer< const Self >	ConstPointer

typedef Superclass::ContinuousIndexType	ContinuousIndexType

typedef FixedArray < GaussianDerivativeOperatorType, 3 *itkGetStaticConstMacro(ImageDimension2) >	GaussianDerivativeOperatorArrayType

typedef itk::GaussianDerivativeOperator < TOutput, itkGetStaticConstMacro(ImageDimension2) >	GaussianDerivativeOperatorType

typedef Superclass::IndexType	IndexType

typedef Superclass::IndexValueType	IndexValueType

typedef Superclass::InputImageType	InputImageType

typedef Superclass::InputPixelType	InputPixelType

enum	InterpolationModeType { NearestNeighbourInterpolation, LinearInterpolation }

typedef FixedArray< KernelType, itkGetStaticConstMacro(ImageDimension2)*(itkGetStaticConstMacro(ImageDimension2)+1)/2 >	KernelArrayType

typedef Neighborhood< TOutput, itkGetStaticConstMacro(ImageDimension2) >	KernelType

typedef OperatorImageFunctionType::Pointer	OperatorImageFunctionPointer

typedef NeighborhoodOperatorImageFunction < InputImageType, TOutput >	OperatorImageFunctionType

typedef Superclass::OutputType	OutputType

typedef SmartPointer< Self >	Pointer

typedef Superclass::PointType	PointType

typedef DiscreteHessianGaussianImageFunction	Self

typedef ImageFunction < TInputImage, SymmetricSecondRankTensor < TOutput, TInputImage::ImageDimension > , TOutput >	Superclass

typedef SymmetricSecondRankTensor < TOutput, TInputImage::ImageDimension >	TensorType

typedef FixedArray< double, itkGetStaticConstMacro(ImageDimension2) >	VarianceArrayType

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

typedef ContinuousIndex < TOutput, itkGetStaticConstMacro(ImageDimension) >	ContinuousIndexType

typedef TOutput	CoordRepType

typedef InputImageType::IndexType	IndexType

typedef InputImageType::IndexValueType	IndexValueType

typedef InputImageType::ConstPointer	InputImageConstPointer

typedef TInputImage	InputImageType

typedef InputImageType::PixelType	InputPixelType

typedef SymmetricSecondRankTensor < TOutput, TInputImage::ImageDimension >	OutputType

typedef SmartPointer< Self >	Pointer

typedef Point< TOutput, itkGetStaticConstMacro(ImageDimension) >	PointType

typedef ImageFunction	Self

typedef FunctionBase< Point < TOutput, itkGetStaticConstMacro(ImageDimension) > , SymmetricSecondRankTensor < TOutput, TInputImage::ImageDimension > >	Superclass

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

typedef Point< TOutput, TInputImage::ImageDimension >	InputType

typedef SymmetricSecondRankTensor < TOutput, TInputImage::ImageDimension >	OutputType

typedef SmartPointer< Self >	Pointer

typedef FunctionBase	Self

typedef Object	Superclass

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

typedef SmartPointer< Self >	Pointer

typedef Object	Self

typedef LightObject	Superclass

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

typedef SmartPointer< Self >	Pointer

typedef LightObject	Self

Public Member Functions
virtual ::itk::LightObject::Pointer	CreateAnother (void) const

virtual OutputType	Evaluate (const PointType &point) const

virtual OutputType	EvaluateAtContinuousIndex (const ContinuousIndexType &index) const

virtual OutputType	EvaluateAtIndex (const IndexType &index) const

virtual const char *	GetNameOfClass () const

virtual void	Initialize ()

virtual void	SetInputImage (const InputImageType *ptr)

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

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

virtual const IndexType &	GetEndIndex ()

const InputImageType *	GetInputImage () const

virtual const ContinuousIndexType &	GetStartContinuousIndex ()

virtual const IndexType &	GetStartIndex ()

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::FunctionBase< Point< TOutput, TInputImage::ImageDimension >, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension > >
virtual OutputType	Evaluate (const InputType &input) const =0

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 (void)

const MetaDataDictionary &	GetMetaDataDictionary (void) 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

virtual void	Register () const

void	RemoveAllObservers ()

void	RemoveObserver (unsigned long tag)

void	SetDebug (bool debugFlag) const

void	SetMetaDataDictionary (const MetaDataDictionary &rhs)

virtual void	SetReferenceCount (int)

virtual void	UnRegister () 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 Attributes
static const unsigned int	ImageDimension2 = InputImageType::ImageDimension

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

Protected Member Functions
	DiscreteHessianGaussianImageFunction ()

	DiscreteHessianGaussianImageFunction (const Self &)

void	operator= (const Self &)

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

void	RecomputeGaussianKernel ()

	~DiscreteHessianGaussianImageFunction ()

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

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

	~ImageFunction ()

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

	~FunctionBase ()

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

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

virtual void	SetTimeStamp (const TimeStamp &time)

virtual	~Object ()

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 Types inherited from itk::LightObject
typedef int	InternalReferenceCountType

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