Blurs an image while preserving edges. More...

#include <sitkBilateralImageFilter.h>

Inheritance diagram for itk::simple::BilateralImageFilter:

Collaboration diagram for itk::simple::BilateralImageFilter:

Public Types
typedef BasicPixelIDTypeList	PixelIDTypeList

typedef BilateralImageFilter	Self

Public Types inherited from itk::simple::ImageFilter< 1 >
typedef ImageFilter	Self

Public Types inherited from itk::simple::ProcessObject
typedef ProcessObject	Self

Public Member Functions
	BilateralImageFilter ()

Image	Execute (const Image &image1)

Image	Execute (const Image &image1, double domainSigma, double rangeSigma, unsigned int numberOfRangeGaussianSamples)

double	GetDomainSigma () const

std::string	GetName () const

unsigned int	GetNumberOfRangeGaussianSamples () const

double	GetRangeSigma () const

Self &	SetDomainSigma (double DomainSigma)

Self &	SetNumberOfRangeGaussianSamples (unsigned int NumberOfRangeGaussianSamples)

Self &	SetRangeSigma (double RangeSigma)

std::string	ToString () const

	~BilateralImageFilter ()

Public Member Functions inherited from itk::simple::ImageFilter< 1 >
	ImageFilter ()

virtual	~ImageFilter ()=0

Public Member Functions inherited from itk::simple::ProcessObject
virtual void	Abort ()

virtual int	AddCommand (itk::simple::EventEnum event, itk::simple::Command &cmd)
	Add a Command Object to observer the event. More...

virtual float	GetProgress () const
	An Active Measurement of the progress of execution. More...

virtual bool	HasCommand (itk::simple::EventEnum event) const
	Query of this object has any registered commands for event. More...

	ProcessObject ()

virtual void	RemoveAllCommands ()
	Remove all registered commands. More...

virtual	~ProcessObject ()

virtual void	DebugOn ()

virtual void	DebugOff ()

virtual bool	GetDebug () const

virtual void	SetDebug (bool debugFlag)

virtual void	SetNumberOfThreads (unsigned int n)

virtual unsigned int	GetNumberOfThreads () const

Private Types
typedef Image(Self::*	MemberFunctionType) (const Image &image1)

Private Member Functions
template<class TImageType >
Image	ExecuteInternal (const Image &image1)

template<class TImageType >
Image	ExecuteInternalVectorImage (const Image &image)

Private Attributes
double	m_DomainSigma

nsstd::auto_ptr< detail::MemberFunctionFactory< MemberFunctionType > >	m_MemberFactory

unsigned int	m_NumberOfRangeGaussianSamples

double	m_RangeSigma

Friends
struct	detail::ExecuteInternalVectorImageAddressor< MemberFunctionType >

struct	detail::MemberFunctionAddressor< MemberFunctionType >

Additional Inherited Members
Static Public Member Functions inherited from itk::simple::ProcessObject
static bool	GetGlobalDefaultDebug ()

static void	GlobalDefaultDebugOff ()

static void	GlobalDefaultDebugOn ()

static void	SetGlobalDefaultDebug (bool debugFlag)

static void	GlobalWarningDisplayOn ()

static void	GlobalWarningDisplayOff ()

static void	SetGlobalWarningDisplay (bool flag)

static bool	GetGlobalWarningDisplay ()

static void	SetGlobalDefaultNumberOfThreads (unsigned int n)

static unsigned int	GetGlobalDefaultNumberOfThreads ()

static double	GetGlobalDefaultCoordinateTolerance ()
	Access the global tolerance to determine congruent spaces. More...

static void	SetGlobalDefaultCoordinateTolerance (double)
	Access the global tolerance to determine congruent spaces. More...

static double	GetGlobalDefaultDirectionTolerance ()
	Access the global tolerance to determine congruent spaces. More...

static void	SetGlobalDefaultDirectionTolerance (double)
	Access the global tolerance to determine congruent spaces. More...

Protected Member Functions inherited from itk::simple::ProcessObject
virtual unsigned long	AddITKObserver (const itk::EventObject &, itk::Command *)

virtual itk::ProcessObject *	GetActiveProcess ()

virtual void	OnActiveProcessDelete ()

virtual void	onCommandDelete (const itk::simple::Command *cmd) throw ()

virtual void	PreUpdate (itk::ProcessObject *p)

virtual void	RemoveITKObserver (EventCommand &e)

Protected Member Functions inherited from itk::simple::NonCopyable
	NonCopyable ()

Static Protected Member Functions inherited from itk::simple::ImageFilter< 1 >
static void	FixNonZeroIndex (TImageType *img)

Static Protected Member Functions inherited from itk::simple::ProcessObject
template<class TImageType >
static TImageType::ConstPointer	CastImageToITK (const Image &img)

template<class TImageType >
static Image	CastITKToImage (TImageType *img)

template<class TPixelType , unsigned int VImageDimension, unsigned int VLength, template< typename, unsigned int > class TVector>
static Image	CastITKToImage (itk::Image< TVector< TPixelType, VLength >, VImageDimension > *img)

static const itk::EventObject &	GetITKEventObject (EventEnum e)

template<typename T >
static std::ostream &	ToStringHelper (std::ostream &os, const T &v)

static std::ostream &	ToStringHelper (std::ostream &os, const char &v)

static std::ostream &	ToStringHelper (std::ostream &os, const signed char &v)

static std::ostream &	ToStringHelper (std::ostream &os, const unsigned char &v)

Detailed Description

Blurs an image while preserving edges.

This filter uses bilateral filtering to blur an image using both domain and range "neighborhoods". Pixels that are close to a pixel in the image domain and similar to a pixel in the image range are used to calculate the filtered value. Two gaussian kernels (one in the image domain and one in the image range) are used to smooth the image. The result is an image that is smoothed in homogeneous regions yet has edges preserved. The result is similar to anisotropic diffusion but the implementation in non-iterative. Another benefit to bilateral filtering is that any distance metric can be used for kernel smoothing the image range. Hence, color images can be smoothed as vector images, using the CIE distances between intensity values as the similarity metric (the Gaussian kernel for the image domain is evaluated using CIE distances). A separate version of this filter will be designed for color and vector images.

Bilateral filtering is capable of reducing the noise in an image by an order of magnitude while maintaining edges.

The bilateral operator used here was described by Tomasi and Manduchi (Bilateral Filtering for Gray and ColorImages. IEEE ICCV. 1998.)

See also: GaussianOperator; RecursiveGaussianImageFilter; DiscreteGaussianImageFilter; AnisotropicDiffusionImageFilter; Image; Neighborhood; NeighborhoodOperator

TodoSupport color images

Support vector images

Wiki Examples:

All Examples

Bilateral filter an image
See also
itk::simple::Bilateral for the procedural interface

itk::BilateralImageFilter for the Doxygen on the original ITK class.

Definition at line 70 of file sitkBilateralImageFilter.h.

Member Typedef Documentation

typedef Image(Self::* itk::simple::BilateralImageFilter::MemberFunctionType) (const Image &image1)

private

Setup for member function dispatching

Definition at line 134 of file sitkBilateralImageFilter.h.

typedef BasicPixelIDTypeList itk::simple::BilateralImageFilter::PixelIDTypeList

Define the pixels types supported by this filter

Definition at line 82 of file sitkBilateralImageFilter.h.

typedef BilateralImageFilter itk::simple::BilateralImageFilter::Self

Definition at line 72 of file sitkBilateralImageFilter.h.

Constructor & Destructor Documentation

itk::simple::BilateralImageFilter::BilateralImageFilter ( )

Default Constructor that takes no arguments and initializes default parameters

itk::simple::BilateralImageFilter::~BilateralImageFilter ( )

Destructor

Member Function Documentation

Image itk::simple::BilateralImageFilter::Execute ( const Image & image1 )

Execute the filter on the input image

Image itk::simple::BilateralImageFilter::Execute	(	const Image &	image1,
		double	domainSigma,
		double	rangeSigma,
		unsigned int	numberOfRangeGaussianSamples
	)

Execute the filter on the input image with the given parameters

template<class TImageType >

Image itk::simple::BilateralImageFilter::ExecuteInternal ( const Image & image1 )

private

template<class TImageType >

Image itk::simple::BilateralImageFilter::ExecuteInternalVectorImage ( const Image & image )

private

Dispatched methods which calls ExecuteInteral on each component

double itk::simple::BilateralImageFilter::GetDomainSigma ( ) const

inline

Standard get/set macros for filter parameters. DomainSigma is specified in the same units as the Image spacing. RangeSigma is specified in the units of intensity.

Definition at line 94 of file sitkBilateralImageFilter.h.

std::string itk::simple::BilateralImageFilter::GetName ( ) const

inlinevirtual

Name of this class

Implements itk::simple::ProcessObject.

Definition at line 116 of file sitkBilateralImageFilter.h.

unsigned int itk::simple::BilateralImageFilter::GetNumberOfRangeGaussianSamples ( ) const

inline

Set/Get the number of samples in the approximation to the Gaussian used for the range smoothing. Samples are only generated in the range of [0, 4*m_RangeSigma]. Default is 100.

Definition at line 114 of file sitkBilateralImageFilter.h.

double itk::simple::BilateralImageFilter::GetRangeSigma ( ) const

inline

Standard get/set macros for filter parameters. DomainSigma is specified in the same units as the Image spacing. RangeSigma is specified in the units of intensity.

Definition at line 104 of file sitkBilateralImageFilter.h.

Self& itk::simple::BilateralImageFilter::SetDomainSigma ( double DomainSigma )

inline

Convenience get/set methods for setting all domain parameters to the same values.

Definition at line 89 of file sitkBilateralImageFilter.h.

Self& itk::simple::BilateralImageFilter::SetNumberOfRangeGaussianSamples ( unsigned int NumberOfRangeGaussianSamples )

inline

Set/Get the number of samples in the approximation to the Gaussian used for the range smoothing. Samples are only generated in the range of [0, 4*m_RangeSigma]. Default is 100.

Definition at line 109 of file sitkBilateralImageFilter.h.

Self& itk::simple::BilateralImageFilter::SetRangeSigma ( double RangeSigma )

inline

Standard get/set macros for filter parameters. DomainSigma is specified in the same units as the Image spacing. RangeSigma is specified in the units of intensity.

Definition at line 99 of file sitkBilateralImageFilter.h.

std::string itk::simple::BilateralImageFilter::ToString ( ) const

virtual

Print ourselves out

Reimplemented from itk::simple::ProcessObject.