itk::GaussianOperator< TPixel, VDimension, TAllocator > Class Template Reference
[Operators]

#include <itkGaussianOperator.h>

Inheritance diagram for itk::GaussianOperator< TPixel, VDimension, TAllocator >:

[legend]Collaboration diagram for itk::GaussianOperator< TPixel, VDimension, TAllocator >:

[legend]List of all members.

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Detailed Description

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>>
class itk::GaussianOperator< TPixel, VDimension, TAllocator >

A NeighborhoodOperator whose coefficients are a one dimensional, discrete Gaussian kernel.

GaussianOperator can be used to perform Gaussian blurring by taking its inner product with to a Neighborhood (NeighborhooIterator) that is swept across an image region. It is a directional operator. N successive applications oriented along each dimensional direction will effect separable, efficient, N-D Gaussian blurring of an image region.

GaussianOperator takes two parameters:

(1) The floating-point variance of the desired Gaussian function.

(2) The "maximum error" allowed in the discrete Gaussian function. "Maximum errror" is defined as the difference between the area under the discrete Gaussian curve and the area under the continuous Gaussian. Maximum error affects the Gaussian operator size. Care should be taken not to make this value too small relative to the variance lest the operator size become unreasonably large.

References: The Gaussian kernel contained in this operator was described by Tony Lindeberg (Discrete Scale-Space Theory and the Scale-Space Primal Sketch. Dissertation. Royal Institute of Technology, Stockholm, Sweden. May 1991.).

See also:

NeighborhoodOperator

NeighborhoodIterator

Neighborhood

Definition at line 61 of file itkGaussianOperator.h.

Public Types
typedef TAllocator	AllocatorType
typedef AllocatorType::const_iterator	ConstIterator
typedef AllocatorType::iterator	Iterator
typedef Offset< VDimension >	OffsetType
typedef NumericTraits< TPixel >::RealType	PixelRealType
typedef TPixel	PixelType
typedef Size< VDimension >	RadiusType
typedef GaussianOperator	Self
typedef Superclass::SizeType	SizeType
typedef SizeType::SizeValueType	SizeValueType
typedef SliceIterator< TPixel, Self >	SliceIteratorType
typedef NeighborhoodOperator< TPixel, VDimension, TAllocator >	Superclass
Public Member Functions
ConstIterator	Begin () const
Iterator	Begin ()
virtual void	CreateDirectional ()
virtual void	CreateToRadius (const unsigned long)
virtual void	CreateToRadius (const SizeType &)
ConstIterator	End () const
STL style iterator support *Iterator	End ()
virtual void	FlipAxes ()
Copy constructor *	GaussianOperator (const Self &other)
	GaussianOperator ()
const AllocatorType &	GetBufferReference () const
Returns a reference to the data buffer structure *AllocatorType &	GetBufferReference ()
unsigned int	GetCenterNeighborhoodIndex () const
TPixel	GetCenterValue () const
unsigned long	GetDirection () const
TPixel &	GetElement (unsigned int i)
double	GetMaximumError ()
unsigned int	GetMaximumKernelWidth () const
virtual unsigned int	GetNeighborhoodIndex (const OffsetType &) const
OffsetType	GetOffset (unsigned int i) const
unsigned long	GetRadius (const unsigned long n) const
const SizeType	GetRadius () const
SizeType	GetSize () const
unsigned long	GetSize (const unsigned long n) const
std::slice	GetSlice (unsigned int) const
unsigned	GetStride (const unsigned axis) const
double	GetVariance ()
	itkStaticConstMacro (NeighborhoodDimension, unsigned int, VDimension)
Assignment	operator */Self &operator= (const Self &other)
bool	operator!= (const Self &other) const
Assignment	operator.*/Self &operator= (const Self &orig)
bool	operator== (const Self &other) const
const TPixel &	operator[] (const OffsetType &o) const
Get pixel value by offset *TPixel &	operator[] (const OffsetType &o)
const TPixel &	operator[] (unsigned int i) const
Pass through data access methods to the buffer *TPixel &	operator[] (unsigned int i)
void	Print (std::ostream &os) const
Prints some debugging information *virtual void	PrintSelf (std::ostream &os, Indent i) const
void	ScaleCoefficients (PixelRealType)
void	SetDirection (const unsigned long &direction)
void	SetMaximumError (const double &max_error)
void	SetMaximumKernelWidth (unsigned int n)
void	SetRadius (const unsigned long)
Sets the radius for the neighborhood Overloaded to support an unsigned *long array *void	SetRadius (const unsigned long *rad)
void	SetRadius (const SizeType &)
void	SetVariance (const double &variance)
unsigned int	Size () const
Protected Types
typedef Superclass::CoefficientVector	CoefficientVector
Protected Member Functions
virtual void	Allocate (unsigned int i)
virtual void	ComputeNeighborhoodOffsetTable ()
virtual void	ComputeNeighborhoodStrideTable ()
void	Fill (const CoefficientVector &coeff)
virtual void	FillCenteredDirectional (const CoefficientVector &)
CoefficientVector	GenerateCoefficients ()
Initializes all the coefficients in the neighborhood to zero values *void	InitializeToZero ()
double	ModifiedBesselI (int, double)
double	ModifiedBesselI0 (double)
double	ModifiedBesselI1 (double)
Sets the length along each dimension *void	SetSize ()

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Member Typedef Documentation

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> typedef TAllocator itk::Neighborhood< TPixel, VDimension, TAllocator >::AllocatorType [inherited]

External support for allocator type. Reimplemented in itk::BinaryBallStructuringElement< TPixel, VDimension, TAllocator >, and itk::BinaryCrossStructuringElement< TPixel, VDimension, TAllocator >. Definition at line 61 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> typedef Superclass::CoefficientVector itk::GaussianOperator< TPixel, VDimension, TAllocator >::CoefficientVector [protected]

Typedef support for coefficient vector type. Necessary to fix bug in the microsoft VC++ compiler. Reimplemented from itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >. Definition at line 145 of file itkGaussianOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> typedef AllocatorType::const_iterator itk::Neighborhood< TPixel, VDimension, TAllocator >::ConstIterator [inherited]

Reimplemented in itk::BinaryBallStructuringElement< TPixel, VDimension, TAllocator >, itk::BinaryCrossStructuringElement< TPixel, VDimension, TAllocator >, itk::ConstNeighborhoodIterator< TImage, TBoundaryCondition >, itk::NeighborhoodIterator, and itk::ConstNeighborhoodIterator< FixedImageType >. Definition at line 73 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> typedef AllocatorType::iterator itk::Neighborhood< TPixel, VDimension, TAllocator >::Iterator [inherited]

Iterator typedef support. Note the naming is intentional, i.e., iterator and ::const_iterator, because the allocator may be a vnl object or other type, which uses this form. Reimplemented in itk::BinaryBallStructuringElement< TPixel, VDimension, TAllocator >, itk::BinaryCrossStructuringElement< TPixel, VDimension, TAllocator >, itk::ConstNeighborhoodIterator< TImage, TBoundaryCondition >, itk::NeighborhoodIterator, and itk::ConstNeighborhoodIterator< FixedImageType >. Definition at line 72 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> typedef Offset<VDimension> itk::Neighborhood< TPixel, VDimension, TAllocator >::OffsetType [inherited]

Offset type used to reference neighbor locations Reimplemented in itk::AnnulusOperator< TPixel, TDimension, TAllocator >, itk::BinaryCrossStructuringElement< TPixel, VDimension, TAllocator >, itk::ConstNeighborhoodIterator< TImage, TBoundaryCondition >, itk::NeighborhoodIterator, and itk::ConstNeighborhoodIterator< FixedImageType >. Definition at line 83 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> typedef NumericTraits< TPixel >::RealType itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::PixelRealType [inherited]

Definition at line 138 of file itkNeighborhoodOperator.h.

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> typedef TPixel itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::PixelType [inherited]

External support for pixel type Reimplemented from itk::Neighborhood< TPixel, VDimension, TAllocator >. Reimplemented in itk::AnnulusOperator< TPixel, TDimension, TAllocator >, itk::BackwardDifferenceOperator< TPixel, TDimension, TAllocator >, itk::DerivativeOperator< TPixel, VDimension, TAllocator >, itk::ForwardDifferenceOperator< TPixel, VDimension, TAllocator >, and itk::LaplacianOperator< TPixel, VDimension, TAllocator >. Definition at line 76 of file itkNeighborhoodOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> typedef Size<VDimension> itk::Neighborhood< TPixel, VDimension, TAllocator >::RadiusType [inherited]

Radius typedef support. Reimplemented in itk::BinaryBallStructuringElement< TPixel, VDimension, TAllocator >, itk::BinaryCrossStructuringElement< TPixel, VDimension, TAllocator >, itk::ConstNeighborhoodIterator< TImage, TBoundaryCondition >, itk::NeighborhoodIterator, and itk::ConstNeighborhoodIterator< FixedImageType >. Definition at line 80 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> typedef GaussianOperator itk::GaussianOperator< TPixel, VDimension, TAllocator >::Self

Standard class typedefs. Reimplemented from itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >. Definition at line 66 of file itkGaussianOperator.h.

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> typedef Superclass::SizeType itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::SizeType [inherited]

Size object typedef support Reimplemented from itk::Neighborhood< TPixel, VDimension, TAllocator >. Reimplemented in itk::AnnulusOperator< TPixel, TDimension, TAllocator >, and itk::LaplacianOperator< TPixel, VDimension, TAllocator >. Definition at line 73 of file itkNeighborhoodOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> typedef SizeType::SizeValueType itk::Neighborhood< TPixel, VDimension, TAllocator >::SizeValueType [inherited]

Reimplemented in itk::BinaryBallStructuringElement< TPixel, VDimension, TAllocator >, itk::BinaryCrossStructuringElement< TPixel, VDimension, TAllocator >, itk::ConstNeighborhoodIterator< TImage, TBoundaryCondition >, and itk::ConstNeighborhoodIterator< FixedImageType >. Definition at line 77 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> typedef SliceIterator<TPixel, Self> itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::SliceIteratorType [inherited]

Slice iterator typedef support Reimplemented from itk::Neighborhood< TPixel, VDimension, TAllocator >. Definition at line 79 of file itkNeighborhoodOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> typedef NeighborhoodOperator<TPixel, VDimension, TAllocator> itk::GaussianOperator< TPixel, VDimension, TAllocator >::Superclass

Reimplemented from itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >. Definition at line 67 of file itkGaussianOperator.h.

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Constructor & Destructor Documentation

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> itk::GaussianOperator< TPixel, VDimension, TAllocator >::GaussianOperator (   )  [inline]

Constructor. Definition at line 70 of file itkGaussianOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> Copy constructor* itk::GaussianOperator< TPixel, VDimension, TAllocator >::GaussianOperator (  const Self &  other  )  [inline]

Definition at line 73 of file itkGaussianOperator.h. References itk::GaussianOperator< TPixel, VDimension, TAllocator >::m_MaximumError, itk::GaussianOperator< TPixel, VDimension, TAllocator >::m_MaximumKernelWidth, and itk::GaussianOperator< TPixel, VDimension, TAllocator >::m_Variance.

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Member Function Documentation

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> virtual void itk::Neighborhood< TPixel, VDimension, TAllocator >::Allocate (  unsigned int  i  )  [inline, protected, virtual, inherited]

Allocates the neighborhood's memory buffer. Definition at line 228 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> ConstIterator itk::Neighborhood< TPixel, VDimension, TAllocator >::Begin (  void   )  const [inline, inherited]

Definition at line 148 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> Iterator itk::Neighborhood< TPixel, VDimension, TAllocator >::Begin (  void   )  [inline, inherited]

Definition at line 144 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> virtual void itk::Neighborhood< TPixel, VDimension, TAllocator >::ComputeNeighborhoodOffsetTable (   )  [protected, virtual, inherited]

Fills entries into the offset lookup table. Called once on initialization.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> virtual void itk::Neighborhood< TPixel, VDimension, TAllocator >::ComputeNeighborhoodStrideTable (   )  [protected, virtual, inherited]

Computes the entries for the stride table

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> virtual void itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::CreateDirectional (   )  [virtual, inherited]

Creates the operator with length only in the specified direction. The radius of the operator will be 0 except along the axis on which the operator will work. See also: CreateToRadius FillCenteredDirectional SetDirection() GetDirection()

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> virtual void itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::CreateToRadius (  const unsigned  long  )  [virtual, inherited]

Creates the operator with a specified radius ("square", same length on each side). The spatial location of the coefficients within the operator is defined by the subclass implementation of the Fill method. See also: CreateDirectional Fill

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> virtual void itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::CreateToRadius (  const SizeType &   )  [virtual, inherited]

Creates the operator with a specified radius. The spatial location of the coefficients within the operator is defined by the subclass implementation of the Fill method. See also: CreateDirectional Fill

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> ConstIterator itk::Neighborhood< TPixel, VDimension, TAllocator >::End (  void   )  const [inline, inherited]

Definition at line 146 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> STL style iterator support* Iterator itk::Neighborhood< TPixel, VDimension, TAllocator >::End (  void   )  [inline, inherited]

Definition at line 142 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> void itk::GaussianOperator< TPixel, VDimension, TAllocator >::Fill (  const CoefficientVector &  coeff  )  [inline, protected, virtual]

Arranges coefficients spatially in the memory buffer. Implements itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >. Definition at line 162 of file itkGaussianOperator.h.

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> virtual void itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::FillCenteredDirectional (  const CoefficientVector &   )  [protected, virtual, inherited]

A pre-defined Fill function that can be called by a subclass Fill function to center coefficients along the axis specified by the SetDirection method. Useful for creating directional operators, or centering coefficients in an N-dimensional neighborhood.

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> virtual void itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::FlipAxes (   )  [virtual, inherited]

Reverses the direction of all axes of the operator by reversing the order of the coefficients.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> CoefficientVector itk::GaussianOperator< TPixel, VDimension, TAllocator >::GenerateCoefficients (   )  [protected, virtual]

Calculates operator coefficients. Implements itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> const AllocatorType& itk::Neighborhood< TPixel, VDimension, TAllocator >::GetBufferReference (   )  const [inline, inherited]

Definition at line 195 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> Returns a reference to the data buffer structure* AllocatorType& itk::Neighborhood< TPixel, VDimension, TAllocator >::GetBufferReference (   )  [inline, inherited]

Definition at line 193 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> unsigned int itk::Neighborhood< TPixel, VDimension, TAllocator >::GetCenterNeighborhoodIndex (   )  const [inline, inherited]

Definition at line 213 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> TPixel itk::Neighborhood< TPixel, VDimension, TAllocator >::GetCenterValue (   )  const [inline, inherited]

Returns the element at the center of the neighborhood. Definition at line 166 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> unsigned long itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::GetDirection (   )  const [inline, inherited]

Returns the direction (dimension number) of a directional operator. Definition at line 104 of file itkNeighborhoodOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> TPixel& itk::Neighborhood< TPixel, VDimension, TAllocator >::GetElement (  unsigned int  i  )  [inline, inherited]

Definition at line 161 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> double itk::GaussianOperator< TPixel, VDimension, TAllocator >::GetMaximumError (   )  [inline]

Returns the maximum error of the gaussian approximation. Maximum error is the difference between the area under the discrete Gaussian curve and the area under the continuous Gaussian. Maximum error affects the Gaussian operator size. Definition at line 119 of file itkGaussianOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> unsigned int itk::GaussianOperator< TPixel, VDimension, TAllocator >::GetMaximumKernelWidth (   )  const [inline]

Returns the maximum allowed kernel width. Definition at line 130 of file itkGaussianOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> virtual unsigned int itk::Neighborhood< TPixel, VDimension, TAllocator >::GetNeighborhoodIndex (  const OffsetType &   )  const [virtual, inherited]

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> OffsetType itk::Neighborhood< TPixel, VDimension, TAllocator >::GetOffset (  unsigned int  i  )  const [inline, inherited]

Returns the itk::Offset from the center of the Neighborhood to the requested neighbor index. Definition at line 208 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> unsigned long itk::Neighborhood< TPixel, VDimension, TAllocator >::GetRadius (  const unsigned long  n  )  const [inline, inherited]

Returns the radius of the neighborhood along a specified dimension. Definition at line 123 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> const SizeType itk::Neighborhood< TPixel, VDimension, TAllocator >::GetRadius (  void   )  const [inline, inherited]

Returns the radius of the neighborhood. Definition at line 118 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> SizeType itk::Neighborhood< TPixel, VDimension, TAllocator >::GetSize (  void   )  const [inline, inherited]

Returns the size (total length of sides) of the neighborhood. Definition at line 132 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> unsigned long itk::Neighborhood< TPixel, VDimension, TAllocator >::GetSize (  const unsigned long  n  )  const [inline, inherited]

Returns the size (total length) of the neighborhood along a specified dimension. Definition at line 128 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> std::slice itk::Neighborhood< TPixel, VDimension, TAllocator >::GetSlice (  unsigned  int  )  const [inherited]

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> unsigned itk::Neighborhood< TPixel, VDimension, TAllocator >::GetStride (  const unsigned  axis  )  const [inline, inherited]

Returns the stride length for the specified dimension. Stride length is the number of pixels between adjacent pixels along the given dimension. Definition at line 138 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> double itk::GaussianOperator< TPixel, VDimension, TAllocator >::GetVariance (   )  [inline]

Returns the variance of the Gaussian (scale) for the operator. Definition at line 112 of file itkGaussianOperator.h.

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> Initializes all the coefficients in the neighborhood to zero values* void itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::InitializeToZero (   )  [inline, protected, inherited]

Definition at line 164 of file itkNeighborhoodOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> itk::Neighborhood< TPixel, VDimension, TAllocator >::itkStaticConstMacro (  NeighborhoodDimension  , unsigned  int, VDimension  )  [inherited]

External support for dimensionality. Reimplemented in itk::BinaryBallStructuringElement< TPixel, VDimension, TAllocator >, and itk::BinaryCrossStructuringElement< TPixel, VDimension, TAllocator >.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> double itk::GaussianOperator< TPixel, VDimension, TAllocator >::ModifiedBesselI (  int  , double  )  [protected]

Returns the value of the modified Bessel function Ik(x) at a point x>=0, where k>=2.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> double itk::GaussianOperator< TPixel, VDimension, TAllocator >::ModifiedBesselI0 (  double   )  [protected]

Returns the value of the modified Bessel function I0(x) at a point x >= 0.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> double itk::GaussianOperator< TPixel, VDimension, TAllocator >::ModifiedBesselI1 (  double   )  [protected]

Returns the value of the modified Bessel function I1(x) at a point x, x real.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> Assignment itk::GaussianOperator< TPixel, VDimension, TAllocator >::operator */Self &operator= (  const Self &  other  )  [inline]

Definition at line 83 of file itkGaussianOperator.h. References itk::GaussianOperator< TPixel, VDimension, TAllocator >::m_MaximumError, itk::GaussianOperator< TPixel, VDimension, TAllocator >::m_MaximumKernelWidth, and itk::GaussianOperator< TPixel, VDimension, TAllocator >::m_Variance.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> bool itk::Neighborhood< TPixel, VDimension, TAllocator >::operator!= (  const Self &  other  )  const [inline, inherited]

Not Equal operator. Reimplemented in itk::ConstNeighborhoodIterator< TImage, TBoundaryCondition >, and itk::ConstNeighborhoodIterator< FixedImageType >. Definition at line 110 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> Assignment itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::operator.*/Self &operator= (  const Self &  orig  )  [inline, inherited]

Definition at line 91 of file itkNeighborhoodOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> bool itk::Neighborhood< TPixel, VDimension, TAllocator >::operator== (  const Self &  other  )  const [inline, inherited]

Comparison operator. Reimplemented in itk::ConstNeighborhoodIterator< TImage, TBoundaryCondition >, and itk::ConstNeighborhoodIterator< FixedImageType >. Definition at line 102 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> const TPixel& itk::Neighborhood< TPixel, VDimension, TAllocator >::operator[] (  const OffsetType &  o  )  const [inline, inherited]

Definition at line 202 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> Get pixel value by offset* TPixel& itk::Neighborhood< TPixel, VDimension, TAllocator >::operator[] (  const OffsetType &  o  )  [inline, inherited]

Definition at line 200 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> const TPixel& itk::Neighborhood< TPixel, VDimension, TAllocator >::operator[] (  unsigned int  i  )  const [inline, inherited]

Definition at line 159 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> Pass through data access methods to the buffer* TPixel& itk::Neighborhood< TPixel, VDimension, TAllocator >::operator[] (  unsigned int  i  )  [inline, inherited]

Definition at line 157 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> void itk::Neighborhood< TPixel, VDimension, TAllocator >::Print (  std::ostream &  os  )  const [inline, inherited]

Standard itk object method. Definition at line 189 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> Prints some debugging information* virtual void itk::GaussianOperator< TPixel, VDimension, TAllocator >::PrintSelf (  std::ostream &  os, Indent  i )  const [inline, virtual]

Standard itk object method. Reimplemented from itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >. Definition at line 134 of file itkGaussianOperator.h. References itk::Indent::GetNextIndent(), and HardConnectedComponentImageFilter::PrintSelf().

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> void itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::ScaleCoefficients (  PixelRealType   )  [inherited]

Multiplies all of the coefficients of the kernel by a single scalar value.

template<class TPixel, unsigned int VDimension, class TAllocator = NeighborhoodAllocator<TPixel>> void itk::NeighborhoodOperator< TPixel, VDimension, TAllocator >::SetDirection (  const unsigned long &  direction  )  [inline, inherited]

Sets the dimensional direction of a directional operator. Definition at line 100 of file itkNeighborhoodOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> void itk::GaussianOperator< TPixel, VDimension, TAllocator >::SetMaximumError (  const double &  max_error  )  [inline]

Sets the desired maximum error of the gaussian approximation. Maximum error is the difference between the area under the discrete Gaussian curve and the area under the continuous Gaussian. Maximum error affects the Gaussian operator size. Definition at line 101 of file itkGaussianOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> void itk::GaussianOperator< TPixel, VDimension, TAllocator >::SetMaximumKernelWidth (  unsigned int  n  )  [inline]

Sets a limit for growth of the kernel. Small maximum error values with large variances will yield very large kernel sizes. This value can be used to truncate a kernel in such instances. A warning will be given on truncation of the kernel. Definition at line 126 of file itkGaussianOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> void itk::Neighborhood< TPixel, VDimension, TAllocator >::SetRadius (  const unsigned  long  )  [inherited]

Overloads SetRadius to allow a single long integer argument that is used as the radius of all the dimensions of the Neighborhood (resulting in a "square" neighborhood).

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> Sets the radius for the neighborhood Overloaded to support an unsigned* long array* void itk::Neighborhood< TPixel, VDimension, TAllocator >::SetRadius (  const unsigned long *  rad  )  [inline, inherited]

Definition at line 175 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> void itk::Neighborhood< TPixel, VDimension, TAllocator >::SetRadius (  const SizeType &   )  [inherited]

Sets the radius for the neighborhood, calculates size from the radius, and allocates storage.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> Sets the length along each dimension* void itk::Neighborhood< TPixel, VDimension, TAllocator >::SetSize (   )  [inline, protected, inherited]

Definition at line 220 of file itkNeighborhood.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> void itk::GaussianOperator< TPixel, VDimension, TAllocator >::SetVariance (  const double &  variance  )  [inline]

Sets the desired variance of the Gaussian kernel. Definition at line 94 of file itkGaussianOperator.h.

template<class TPixel, unsigned int VDimension = 2, class TAllocator = NeighborhoodAllocator<TPixel>> unsigned int itk::Neighborhood< TPixel, VDimension, TAllocator >::Size (  void   )  const [inline, inherited]

More STL-style support. Definition at line 153 of file itkNeighborhood.h. Referenced by itk::NeighborhoodInnerProduct< ImageType >::operator()().

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

• itkGaussianOperator.h

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