itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage > Class Template Reference

#include <itkAnisotropicDiffusionImageFilter.h>

Inheritance diagram for itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >:

Collaboration diagram for itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >:

List of all members.

Public Types
typedef SmartPointer< const Self >	ConstPointer
typedef Superclass::InputImageType	InputImageType
typedef Superclass::OutputImageType	OutputImageType
typedef Superclass::PixelType	PixelType
typedef SmartPointer< Self >	Pointer
typedef AnisotropicDiffusionImageFilter	Self
typedef DenseFiniteDifferenceImageFilter < TInputImage, TOutputImage >	Superclass
typedef Superclass::TimeStepType	TimeStepType
typedef Superclass::UpdateBufferType	UpdateBufferType
Public Member Functions
virtual double	GetFixedAverageGradientMagnitude () const
virtual const char *	GetNameOfClass () const
virtual void	SetTimeStep (TimeStepType _arg)
virtual TimeStepType	GetTimeStep () const
virtual void	SetConductanceParameter (double _arg)
virtual double	GetConductanceParameter () const
virtual void	SetConductanceScalingUpdateInterval (unsigned int _arg)
virtual unsigned int	GetConductanceScalingUpdateInterval () const
virtual void	SetConductanceScalingParameter (double _arg)
virtual double	GetConductanceScalingParameter () const
void	SetFixedAverageGradientMagnitude (double a)
Static Public Attributes
static const unsigned int	ImageDimension = Superclass::ImageDimension
Protected Member Functions
	AnisotropicDiffusionImageFilter ()
virtual void	InitializeIteration ()
void	PrintSelf (std::ostream &os, Indent indent) const
	~AnisotropicDiffusionImageFilter ()
Protected Attributes
bool	m_GradientMagnitudeIsFixed
Private Member Functions
	AnisotropicDiffusionImageFilter (const Self &)
void	operator= (const Self &)
Private Attributes
double	m_ConductanceParameter
double	m_ConductanceScalingParameter
unsigned int	m_ConductanceScalingUpdateInterval
double	m_FixedAverageGradientMagnitude
TimeStepType	m_TimeStep

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Detailed Description

template<class TInputImage, class TOutputImage>
class itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >

This filter is the base class for a set of filters that iteratively diffuse images by solving non-linear partial differential equations based on the classical heat equation. For an overview of the diffusion algorithm, see AnisotropicImageFunction. AnisotropicDiffusionImageFilter is a subclass of itkFiniteDifferenceImageFilter and is part of the finite difference solver hierarchy.

Inputs and Outputs

This is an image-to-image filter. The requirements for data types and dimensionality of the input and output are defined by subclasses. In general, these filters expect images of real-valued types. This means pixel types of floats, doubles, or a user-defined type with floating point accuracy and arithmetic operations.

Parameters

Set/GetNumberOfIterations specifies the number of iterations (time-step updates) that the solver will perform to produce a solution image. The appropriate number of iterations is dependent on the application and the image being processed. As a general rule, the more iterations performed, the more diffused the image will become.

Set/GetTimeStep sets the time step to be used for each iteration (update). This parameter is described in detail in itkAnisotropicDiffusionFunction. The time step is constrained at run-time to keep the solution stable. In general, the time step should be at or below 1/2^N, where N is the dimensionality of the image.

Set/GetConductanceParameter set a common parameter used by subclasses of itkAnisotropicDiffusionFunction. See itkAnisotropicDiffusionFunction for detailed information.

How to use this filter

AnisotropicDiffusionImageFilter must be subclassed to be used. This class implements a generic framework for other diffusion filters.

See also:

GradientAnisotropicDiffusionImageFilter

VectorGradientAnisotropicDiffusionImageFilter

CurvatureAnisotropicDiffusionImageFilter

VectorCurvatureAnisotropicDiffusionImageFilter

Definition at line 73 of file itkAnisotropicDiffusionImageFilter.h.

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Member Typedef Documentation

template<class TInputImage , class TOutputImage >

typedef SmartPointer< const Self > itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::ConstPointer

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >.

Reimplemented in itk::VectorCurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::VectorGradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::CurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, and itk::GradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >.

Definition at line 81 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef Superclass::InputImageType itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::InputImageType

Capture information from the superclass.

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >.

Definition at line 85 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef Superclass::OutputImageType itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::OutputImageType

Superclass typedefs.

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >.

Definition at line 89 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef Superclass::PixelType itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::PixelType

The pixel type of the output image will be used in computations. Inherited from the superclass.

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >.

Definition at line 98 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef SmartPointer< Self > itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::Pointer

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >.

Reimplemented in itk::VectorCurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::VectorGradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::CurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, and itk::GradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >.

Definition at line 80 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef AnisotropicDiffusionImageFilter itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::Self

Standard class typedefs.

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >.

Reimplemented in itk::VectorCurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::VectorGradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::CurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, and itk::GradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >.

Definition at line 78 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage > itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::Superclass

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >.

Reimplemented in itk::VectorCurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::VectorGradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::CurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, and itk::GradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >.

Definition at line 79 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef Superclass::TimeStepType itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::TimeStepType

The value type of a time step. Inherited from the superclass.

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >.

Definition at line 99 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef Superclass::UpdateBufferType itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::UpdateBufferType

The container type for the update buffer.

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >.

Reimplemented in itk::VectorCurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::VectorGradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::CurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, and itk::GradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >.

Definition at line 90 of file itkAnisotropicDiffusionImageFilter.h.

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Constructor & Destructor Documentation

template<class TInputImage , class TOutputImage >

itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::AnisotropicDiffusionImageFilter

(

)

[protected]

template<class TInputImage , class TOutputImage >

itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::~AnisotropicDiffusionImageFilter

(

)

[inline, protected]

Definition at line 142 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::AnisotropicDiffusionImageFilter

(

const Self &

)

[private]

---

Member Function Documentation

template<class TInputImage , class TOutputImage >

virtual double itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::GetConductanceParameter

(

)

const [virtual]

Set/Get the conductance parameter governing sensitivity of the conductance equation.

template<class TInputImage , class TOutputImage >

virtual double itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::GetConductanceScalingParameter

(

)

const [virtual]

The following parameters are not used at this time. Setting them will have no effect on the output

template<class TInputImage , class TOutputImage >

virtual unsigned int itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::GetConductanceScalingUpdateInterval

(

)

const [virtual]

Set/Get the interval at which a new scaling for the conductance term is calculated.

template<class TInputImage , class TOutputImage >

virtual double itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::GetFixedAverageGradientMagnitude

(

)

const [virtual]

template<class TInputImage , class TOutputImage >

virtual const char* itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::GetNameOfClass

(

)

const [virtual]

Run-time type information.

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >.

Reimplemented in itk::VectorCurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::VectorGradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::CurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, and itk::GradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >.

template<class TInputImage , class TOutputImage >

virtual TimeStepType itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::GetTimeStep

(

)

const [virtual]

Set/Get the time step for each iteration

template<class TInputImage , class TOutputImage >

virtual void itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::InitializeIteration

(

)

[protected, virtual]

Supplies the halting criteria for this class of filters. The algorithm will stop after a user-specified number of iterations. Prepare for the iteration process.

Reimplemented from itk::FiniteDifferenceImageFilter< TInputImage, TOutputImage >.

Reimplemented in itk::VectorCurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, and itk::CurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >.

template<class TInputImage , class TOutputImage >

void itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::operator=

(

const Self &

)

[private]

PushBackInput(), PushFronInput() in the public section force the input to be the type expected by an ImageToImageFilter. However, these methods end of "hiding" the versions from the superclass (ProcessObject) whose arguments are DataObjects. Here, we re-expose the versions from ProcessObject to avoid warnings about hiding methods from the superclass.

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >.

Reimplemented in itk::VectorCurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::CurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::VectorGradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, and itk::GradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >.

template<class TInputImage , class TOutputImage >

void itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::PrintSelf	(	std::ostream &	os,
		Indent	indent
	)		const [protected, virtual]

End concept checking

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >.

template<class TInputImage , class TOutputImage >

virtual void itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::SetConductanceParameter

(

double

_arg

)

[virtual]

Set/Get the conductance parameter governing sensitivity of the conductance equation.

template<class TInputImage , class TOutputImage >

virtual void itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::SetConductanceScalingParameter

(

double

_arg

)

[virtual]

The following parameters are not used at this time. Setting them will have no effect on the output

template<class TInputImage , class TOutputImage >

virtual void itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::SetConductanceScalingUpdateInterval

(

unsigned int

_arg

)

[virtual]

Set/Get the interval at which a new scaling for the conductance term is calculated.

template<class TInputImage , class TOutputImage >

void itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::SetFixedAverageGradientMagnitude

(

double

a

)

[inline]

Supplies a fixed value for the average gradient magnitude of the image to the AnisotropicDiffusionFunction at each iteration. The average gradient magnitude is normally calculated over the entire image before each iteration and is used as a scaling factor in the calculations of change at a pixel. This method is useful in streaming applications to avoid block artifacts by overriding the normal gradient magnitude calculation (i.e. all image chunks are scaled uniformly).

Definition at line 131 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

virtual void itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::SetTimeStep

(

TimeStepType

_arg

)

[virtual]

Set/Get the time step for each iteration

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Member Data Documentation

template<class TInputImage , class TOutputImage >

const unsigned int itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::ImageDimension = Superclass::ImageDimension [static]

Dimensionality of input and output data is assumed to be the same. It is inherited from the superclass.

Reimplemented from itk::DenseFiniteDifferenceImageFilter< TInputImage, TOutputImage >.

Reimplemented in itk::VectorCurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::VectorGradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, itk::CurvatureAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >, and itk::GradientAnisotropicDiffusionImageFilter< TInputImage, TOutputImage >.

Definition at line 94 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

double itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::m_ConductanceParameter [private]

Definition at line 157 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

double itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::m_ConductanceScalingParameter [private]

Definition at line 158 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

unsigned int itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::m_ConductanceScalingUpdateInterval [private]

Definition at line 159 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

double itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::m_FixedAverageGradientMagnitude [private]

Definition at line 160 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

bool itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::m_GradientMagnitudeIsFixed [protected]

Definition at line 152 of file itkAnisotropicDiffusionImageFilter.h.

template<class TInputImage , class TOutputImage >

TimeStepType itk::AnisotropicDiffusionImageFilter< TInputImage, TOutputImage >::m_TimeStep [private]

Definition at line 162 of file itkAnisotropicDiffusionImageFilter.h.

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

• itkAnisotropicDiffusionImageFilter.h