itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep > Class Template Reference

#include <itkVectorCentralDifferenceImageFunction.h>

Inheritance diagram for itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >:

Collaboration diagram for itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >:

Detailed Description

template<typename TInputImage, typename TCoordRep = float>
class itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >

Calculate the derivative by central differencing.

This class is templated over the input image type and the coordinate representation type (e.g. float or double).

Possible improvements:

• the use of Neighborhood operators may improve efficiency.

Author

Tom Vercauteren, INRIA & Mauna Kea Technologies

This implementation was taken from the Insight Journal paper: http://hdl.handle.net/1926/510

Definition at line 48 of file itkVectorCentralDifferenceImageFunction.h.

Public Types
typedef Superclass::ContinuousIndexType	ContinuousIndexType
typedef Superclass::IndexType	IndexType
typedef TInputImage	InputImageType
typedef TInputImage::PixelType	InputPixelType
typedef Superclass::OutputType	OutputType
typedef Superclass::PointType	PointType
typedef VectorCentralDifferenceImageFunction	Self
typedef ImageFunction < TInputImage, Matrix< double, itkGetStaticConstMacro(Dimension), itkGetStaticConstMacro(ImageDimension) > , TCoordRep >	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
Public Types inherited from itk::ImageFunction< TInputImage, Matrix< double, TInputImage::PixelType::Dimension, TInputImage::ImageDimension >, TCoordRep >
typedef SmartPointer< const Self >	ConstPointer
typedef ContinuousIndex < TCoordRep, itkGetStaticConstMacro(ImageDimension) >	ContinuousIndexType
typedef TCoordRep	CoordRepType
typedef InputImageType::IndexType	IndexType
typedef InputImageType::IndexValueType	IndexValueType
typedef InputImageType::ConstPointer	InputImageConstPointer
typedef TInputImage	InputImageType
typedef InputImageType::PixelType	InputPixelType
typedef Matrix< double, TInputImage::PixelType::Dimension, TInputImage::ImageDimension >	OutputType
typedef SmartPointer< Self >	Pointer
typedef Point< TCoordRep, itkGetStaticConstMacro(ImageDimension) >	PointType
typedef ImageFunction	Self
typedef FunctionBase< Point < TCoordRep, itkGetStaticConstMacro(ImageDimension) > , Matrix< double, TInputImage::PixelType::Dimension, TInputImage::ImageDimension > >	Superclass
Public Types inherited from itk::FunctionBase< Point< TCoordRep, TInputImage::ImageDimension >, Matrix< double, TInputImage::PixelType::Dimension, TInputImage::ImageDimension > >
typedef SmartPointer< const Self >	ConstPointer
typedef Point< TCoordRep, TInputImage::ImageDimension >	InputType
typedef Matrix< double, TInputImage::PixelType::Dimension, 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 () const
virtual OutputType	Evaluate (const PointType &point) const override
virtual OutputType	EvaluateAtContinuousIndex (const ContinuousIndexType &cindex) const override
virtual OutputType	EvaluateAtIndex (const IndexType &index) const override
virtual const char *	GetNameOfClass () const
virtual void	SetUseImageDirection (bool _arg)
virtual bool	GetUseImageDirection () const
virtual void	UseImageDirectionOn ()
virtual void	UseImageDirectionOff ()
Public Member Functions inherited from itk::ImageFunction< TInputImage, Matrix< double, TInputImage::PixelType::Dimension, TInputImage::ImageDimension >, TCoordRep >
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 Matrix< double, TInputImage::PixelType::Dimension, TInputImage::ImageDimension >	Evaluate (const PointType &point) const override=0
virtual Matrix< double, TInputImage::PixelType::Dimension, TInputImage::ImageDimension >	EvaluateAtContinuousIndex (const ContinuousIndexType &index) const =0
virtual Matrix< double, TInputImage::PixelType::Dimension, 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::FunctionBase< Point< TCoordRep, TInputImage::ImageDimension >, Matrix< double, TInputImage::PixelType::Dimension, 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 ()
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
virtual void	Register () const override
void	RemoveAllObservers ()
void	RemoveObserver (unsigned long tag)
void	SetDebug (bool debugFlag) const
void	SetMetaDataDictionary (const MetaDataDictionary &rhs)
virtual void	SetReferenceCount (int) override
virtual void	UnRegister () const noexceptoverride
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 const unsigned int	Dimension = InputPixelType::Dimension
static const unsigned int	ImageDimension = TInputImage::ImageDimension
Static Public Attributes inherited from itk::ImageFunction< TInputImage, Matrix< double, TInputImage::PixelType::Dimension, TInputImage::ImageDimension >, TCoordRep >
static const unsigned int	ImageDimension

Protected Member Functions
void	PrintSelf (std::ostream &os, Indent indent) const override
	VectorCentralDifferenceImageFunction ()
	~VectorCentralDifferenceImageFunction ()
Protected Member Functions inherited from itk::ImageFunction< TInputImage, Matrix< double, TInputImage::PixelType::Dimension, TInputImage::ImageDimension >, TCoordRep >
	ImageFunction ()
void	PrintSelf (std::ostream &os, Indent indent) const override
	~ImageFunction ()
Protected Member Functions inherited from itk::FunctionBase< Point< TCoordRep, TInputImage::ImageDimension >, Matrix< double, TInputImage::PixelType::Dimension, 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 Member Functions
void	operator= (const Self &)
	VectorCentralDifferenceImageFunction (const Self &)

Private Attributes
bool	m_UseImageDirection

Additional Inherited Members
Protected Attributes inherited from itk::ImageFunction< TInputImage, Matrix< double, TInputImage::PixelType::Dimension, TInputImage::ImageDimension >, TCoordRep >
ContinuousIndexType	m_EndContinuousIndex
IndexType	m_EndIndex
InputImageConstPointer	m_Image
ContinuousIndexType	m_StartContinuousIndex
IndexType	m_StartIndex
Protected Attributes inherited from itk::LightObject
AtomicInt< int >	m_ReferenceCount

Member Typedef Documentation

template<typename TInputImage , typename TCoordRep = float>

typedef SmartPointer< const Self > itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::ConstPointer

Standard class typedefs.

Definition at line 73 of file itkVectorCentralDifferenceImageFunction.h.

template<typename TInputImage , typename TCoordRep = float>

typedef Superclass::ContinuousIndexType itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::ContinuousIndexType

ContinuousIndex typedef support.

Definition at line 92 of file itkVectorCentralDifferenceImageFunction.h.

template<typename TInputImage , typename TCoordRep = float>

typedef Superclass::IndexType itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::IndexType

Index typedef support.

Definition at line 89 of file itkVectorCentralDifferenceImageFunction.h.

template<typename TInputImage , typename TCoordRep = float>

typedef TInputImage itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::InputImageType

InputImageType typedef support.

Definition at line 80 of file itkVectorCentralDifferenceImageFunction.h.

template<typename TInputImage , typename TCoordRep = float>

typedef TInputImage::PixelType itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::InputPixelType

Definition at line 56 of file itkVectorCentralDifferenceImageFunction.h.

template<typename TInputImage , typename TCoordRep = float>

typedef Superclass::OutputType itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::OutputType

OutputType typdef support.

Definition at line 86 of file itkVectorCentralDifferenceImageFunction.h.

template<typename TInputImage , typename TCoordRep = float>

typedef SmartPointer< Self > itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::Pointer

Standard class typedefs.

Definition at line 72 of file itkVectorCentralDifferenceImageFunction.h.

template<typename TInputImage , typename TCoordRep = float>

typedef Superclass::PointType itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::PointType

Point typedef support.

Definition at line 95 of file itkVectorCentralDifferenceImageFunction.h.

template<typename TInputImage , typename TCoordRep = float>

typedef VectorCentralDifferenceImageFunction itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::Self

Standard class typedefs.

Definition at line 67 of file itkVectorCentralDifferenceImageFunction.h.

template<typename TInputImage , typename TCoordRep = float>

typedef ImageFunction< TInputImage, Matrix< double, itkGetStaticConstMacro(Dimension), itkGetStaticConstMacro(ImageDimension) >, TCoordRep > itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::Superclass

Standard class typedefs.

Definition at line 71 of file itkVectorCentralDifferenceImageFunction.h.

Constructor & Destructor Documentation

template<typename TInputImage , typename TCoordRep = float>

itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::VectorCentralDifferenceImageFunction ( )

protected

template<typename TInputImage , typename TCoordRep = float>

itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::~VectorCentralDifferenceImageFunction ( )

inlineprotected

Definition at line 148 of file itkVectorCentralDifferenceImageFunction.h.

template<typename TInputImage , typename TCoordRep = float>

itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::VectorCentralDifferenceImageFunction ( const Self &  )

private

Member Function Documentation

template<typename TInputImage , typename TCoordRep = float>

virtual::itk::LightObject::Pointer itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::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::Object.

template<typename TInputImage , typename TCoordRep = float>

virtual OutputType itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::Evaluate ( const PointType &  point ) const

inlineoverridevirtual

Evalulate the image derivative by central differencing at non-integer positions.

No bounds checking is done. The point is assumed to lie within the image buffer.

ImageFunction::IsInsideBuffer() can be used to check bounds before calling the method.

Definition at line 114 of file itkVectorCentralDifferenceImageFunction.h.

References itk::ImageFunction< TInputImage, Matrix< double, TInputImage::PixelType::Dimension, TInputImage::ImageDimension >, TCoordRep >::ConvertPointToNearestIndex(), and itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::EvaluateAtIndex().

template<typename TInputImage , typename TCoordRep = float>

virtual OutputType itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::EvaluateAtContinuousIndex ( const ContinuousIndexType &  cindex ) const

inlineoverridevirtual

Definition at line 122 of file itkVectorCentralDifferenceImageFunction.h.

References itk::ImageFunction< TInputImage, Matrix< double, TInputImage::PixelType::Dimension, TInputImage::ImageDimension >, TCoordRep >::ConvertContinuousIndexToNearestIndex(), and itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::EvaluateAtIndex().

template<typename TInputImage , typename TCoordRep = float>

virtual OutputType itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::EvaluateAtIndex ( const IndexType &  index ) const

overridevirtual

Evalulate the image derivative by central differencing at specified index.

No bounds checking is done. The point is assume to lie within the image buffer.

ImageFunction::IsInsideBuffer() can be used to check bounds before calling the method.

Referenced by itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::Evaluate(), and itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::EvaluateAtContinuousIndex().

template<typename TInputImage , typename TCoordRep = float>

virtual const char* itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::GetNameOfClass ( ) const

virtual

Run-time type information (and related methods).

Reimplemented from itk::ImageFunction< TInputImage, Matrix< double, TInputImage::PixelType::Dimension, TInputImage::ImageDimension >, TCoordRep >.

template<typename TInputImage , typename TCoordRep = float>

virtual bool itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::GetUseImageDirection ( ) const

virtual

The UseImageDirection flag determines whether image derivatives are computed with respect to the image grid or with respect to the physical space. When this flag is ON the derivatives are computed with respect to the coordinate system of physical space. The difference is whether we take into account the image Direction or not. The flag ON will take into account the image direction and will result in an extra matrix multiplication compared to the amount of computation performed when the flag is OFF. The default value of this flag is On.

template<typename TInputImage , typename TCoordRep = float>

static Pointer itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::New ( )

static

Method for creation through the object factory.

template<typename TInputImage , typename TCoordRep = float>

void itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::operator= ( const Self &  )

private

template<typename TInputImage , typename TCoordRep = float>

void itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::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::Object.

template<typename TInputImage , typename TCoordRep = float>

virtual void itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::SetUseImageDirection ( bool  _arg )

virtual

The UseImageDirection flag determines whether image derivatives are computed with respect to the image grid or with respect to the physical space. When this flag is ON the derivatives are computed with respect to the coordinate system of physical space. The difference is whether we take into account the image Direction or not. The flag ON will take into account the image direction and will result in an extra matrix multiplication compared to the amount of computation performed when the flag is OFF. The default value of this flag is On.

template<typename TInputImage , typename TCoordRep = float>

virtual void itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::UseImageDirectionOff ( )

virtual

The UseImageDirection flag determines whether image derivatives are computed with respect to the image grid or with respect to the physical space. When this flag is ON the derivatives are computed with respect to the coordinate system of physical space. The difference is whether we take into account the image Direction or not. The flag ON will take into account the image direction and will result in an extra matrix multiplication compared to the amount of computation performed when the flag is OFF. The default value of this flag is On.

template<typename TInputImage , typename TCoordRep = float>

virtual void itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::UseImageDirectionOn ( )

virtual

The UseImageDirection flag determines whether image derivatives are computed with respect to the image grid or with respect to the physical space. When this flag is ON the derivatives are computed with respect to the coordinate system of physical space. The difference is whether we take into account the image Direction or not. The flag ON will take into account the image direction and will result in an extra matrix multiplication compared to the amount of computation performed when the flag is OFF. The default value of this flag is On.

Member Data Documentation

template<typename TInputImage , typename TCoordRep = float>

const unsigned int itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::Dimension = InputPixelType::Dimension

static

Extract the vector dimension from the pixel template parameter.

Definition at line 60 of file itkVectorCentralDifferenceImageFunction.h.

template<typename TInputImage , typename TCoordRep = float>

const unsigned int itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::ImageDimension = TInputImage::ImageDimension

static

Dimension underlying input image.

Definition at line 64 of file itkVectorCentralDifferenceImageFunction.h.

template<typename TInputImage , typename TCoordRep = float>

bool itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >::m_UseImageDirection

private

Definition at line 159 of file itkVectorCentralDifferenceImageFunction.h.

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The documentation for this class was generated from the following file:

• itkVectorCentralDifferenceImageFunction.h