itk::simple::ApproximateSignedDistanceMapImageFilter Class Reference

Create a map of the approximate signed distance from the boundaries of a binary image. More...

#include <sitkApproximateSignedDistanceMapImageFilter.h>

Inheritance diagram for itk::simple::ApproximateSignedDistanceMapImageFilter:

Collaboration diagram for itk::simple::ApproximateSignedDistanceMapImageFilter:

Public Types
typedef IntegerPixelIDTypeList	PixelIDTypeList
typedef ApproximateSignedDistanceMapImageFilter	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
	ApproximateSignedDistanceMapImageFilter ()
Image	Execute (const Image &image1)
Image	Execute (const Image &image1, double insideValue, double outsideValue)
double	GetInsideValue () const
std::string	GetName () const
double	GetOutsideValue () const
Self &	SetInsideValue (double InsideValue)
Self &	SetOutsideValue (double OutsideValue)
std::string	ToString () const
	~ApproximateSignedDistanceMapImageFilter ()
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)

Private Attributes
double	m_InsideValue
nsstd::auto_ptr< detail::MemberFunctionFactory< MemberFunctionType > >	m_MemberFactory
double	m_OutsideValue

Friends
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

Create a map of the approximate signed distance from the boundaries of a binary image.

The ApproximateSignedDistanceMapImageFilter takes as input a binary image and produces a signed distance map. Each pixel value in the output contains the approximate distance from that pixel to the nearest "object" in the binary image. This filter differs from the DanielssonDistanceMapImageFilter in that it calculates the distance to the "object edge" for pixels within the object.

Negative values in the output indicate that the pixel at that position is within an object in the input image. The absolute value of a negative pixel represents the approximate distance to the nearest object boundary pixel.

WARNING: This filter requires that the output type be floating-point. Otherwise internal calculations will not be performed to the appropriate precision, resulting in completely incorrect (read: zero-valued) output.

The distances computed by this filter are Chamfer distances, which are only an approximation to Euclidian distances, and are not as exact approximations as those calculated by the DanielssonDistanceMapImageFilter . On the other hand, this filter is faster.

This filter requires that an "inside value" and "outside value" be set as parameters. The "inside value" is the intensity value of the binary image which corresponds to objects, and the "outside value" is the intensity of the background. (A typical binary image often represents objects as black (0) and background as white (usually 255), or vice-versa.) Note that this filter is slightly faster if the inside value is less than the outside value. Otherwise an extra iteration through the image is required.

This filter uses the FastChamferDistanceImageFilter and the IsoContourDistanceImageFilter internally to perform the distance calculations.

See also

DanielssonDistanceMapImageFilter

SignedDanielssonDistanceMapImageFilter

SignedMaurerDistanceMapImageFilter

FastChamferDistanceImageFilter

IsoContourDistanceImageFilter

Author

Zach Pincus

Wiki Examples:

• All Examples

• Compute a distance map from objects in a binary image

  See also

  itk::simple::ApproximateSignedDistanceMap for the procedural interface

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

Definition at line 70 of file sitkApproximateSignedDistanceMapImageFilter.h.

Member Typedef Documentation

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

private

Setup for member function dispatching

Definition at line 124 of file sitkApproximateSignedDistanceMapImageFilter.h.

typedef IntegerPixelIDTypeList itk::simple::ApproximateSignedDistanceMapImageFilter::PixelIDTypeList

Define the pixels types supported by this filter

Definition at line 82 of file sitkApproximateSignedDistanceMapImageFilter.h.

typedef ApproximateSignedDistanceMapImageFilter itk::simple::ApproximateSignedDistanceMapImageFilter::Self

Definition at line 72 of file sitkApproximateSignedDistanceMapImageFilter.h.

Constructor & Destructor Documentation

itk::simple::ApproximateSignedDistanceMapImageFilter::ApproximateSignedDistanceMapImageFilter

(

)

Default Constructor that takes no arguments and initializes default parameters

itk::simple::ApproximateSignedDistanceMapImageFilter::~ApproximateSignedDistanceMapImageFilter

(

)

Destructor

Member Function Documentation

Image itk::simple::ApproximateSignedDistanceMapImageFilter::Execute

(

const Image &

image1

)

Execute the filter on the input image

Image itk::simple::ApproximateSignedDistanceMapImageFilter::Execute	(	const Image &	image1,
		double	insideValue,
		double	outsideValue
	)

Execute the filter on the input image with the given parameters

template<class TImageType >

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

private

double itk::simple::ApproximateSignedDistanceMapImageFilter::GetInsideValue ( ) const

inline

Set/Get intensity value representing the interior of objects in the mask.

Definition at line 94 of file sitkApproximateSignedDistanceMapImageFilter.h.

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

inlinevirtual

Name of this class

Implements itk::simple::ProcessObject.

Definition at line 106 of file sitkApproximateSignedDistanceMapImageFilter.h.

double itk::simple::ApproximateSignedDistanceMapImageFilter::GetOutsideValue ( ) const

inline

Set/Get intensity value representing non-objects in the mask.

Definition at line 104 of file sitkApproximateSignedDistanceMapImageFilter.h.

Self& itk::simple::ApproximateSignedDistanceMapImageFilter::SetInsideValue ( double  InsideValue )

inline

Set/Get intensity value representing the interior of objects in the mask.

Definition at line 89 of file sitkApproximateSignedDistanceMapImageFilter.h.

Self& itk::simple::ApproximateSignedDistanceMapImageFilter::SetOutsideValue ( double  OutsideValue )

inline

Set/Get intensity value representing non-objects in the mask.

Definition at line 99 of file sitkApproximateSignedDistanceMapImageFilter.h.

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

virtual

Print ourselves out

Reimplemented from itk::simple::ProcessObject.

Friends And Related Function Documentation

friend struct detail::MemberFunctionAddressor< MemberFunctionType >

friend

Definition at line 129 of file sitkApproximateSignedDistanceMapImageFilter.h.

Member Data Documentation

double itk::simple::ApproximateSignedDistanceMapImageFilter::m_InsideValue

private

Definition at line 134 of file sitkApproximateSignedDistanceMapImageFilter.h.

nsstd::auto_ptr<detail::MemberFunctionFactory<MemberFunctionType> > itk::simple::ApproximateSignedDistanceMapImageFilter::m_MemberFactory

private

Definition at line 131 of file sitkApproximateSignedDistanceMapImageFilter.h.

double itk::simple::ApproximateSignedDistanceMapImageFilter::m_OutsideValue

private

Definition at line 135 of file sitkApproximateSignedDistanceMapImageFilter.h.

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

• sitkApproximateSignedDistanceMapImageFilter.h