#include <itkDiscreteGradientMagnitudeGaussianImageFunction.h>

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

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

Detailed Description

template<class TInputImage, class TOutput = double>
class itk::DiscreteGradientMagnitudeGaussianImageFunction< TInputImage, TOutput >

Compute the discrete gradient magnitude gaussian of an the image at a specific location in space, i.e. point, index or continuous index. This class computes a single derivative given the order in each direction (by default zero). 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 47 of file itkDiscreteGradientMagnitudeGaussianImageFunction.h.

Public Types
typedef SmartPointer< const Self >	ConstPointer

typedef Superclass::ContinuousIndexType	ContinuousIndexType

typedef FixedArray < GaussianDerivativeOperatorType, 2 *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) >	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 DiscreteGradientMagnitudeGaussianImageFunction	Self

typedef ImageFunction < TInputImage, TOutput, TOutput >	Superclass


typedef FixedArray< double, itkGetStaticConstMacro(ImageDimension2) >	VarianceArrayType

typedef FixedArray< unsigned int, itkGetStaticConstMacro(ImageDimension2) >	OrderArrayType

Public Types inherited from itk::ImageFunction< TInputImage, TOutput, 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 TOutput	OutputType

typedef SmartPointer< Self >	Pointer

typedef Point< TOutput, itkGetStaticConstMacro(ImageDimension) >	PointType

typedef ImageFunction	Self

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

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

typedef Point< TOutput, TInputImage::ImageDimension >	InputType

typedef TOutput	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, TOutput, 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 TOutput	Evaluate (const PointType &point) const =0

virtual TOutput	EvaluateAtContinuousIndex (const ContinuousIndexType &index) const =0

virtual TOutput	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 >, TOutput >
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, TOutput, TOutput >
static const unsigned int	ImageDimension

Protected Member Functions
	DiscreteGradientMagnitudeGaussianImageFunction ()

	DiscreteGradientMagnitudeGaussianImageFunction (const Self &)

void	operator= (const Self &)

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

void	RecomputeGaussianKernel ()

	~DiscreteGradientMagnitudeGaussianImageFunction ()

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

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

	~ImageFunction ()

Protected Member Functions inherited from itk::FunctionBase< Point< TOutput, TInputImage::ImageDimension >, TOutput >
	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, TOutput, TOutput >
ContinuousIndexType	m_EndContinuousIndex

IndexType	m_EndIndex

InputImageConstPointer	m_Image

ContinuousIndexType	m_StartContinuousIndex

IndexType	m_StartIndex