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

#include <itkLaplacianImageFilter.h>

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

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

List of all members.

Public Types
typedef SmartPointer< const Self >	ConstPointer
typedef InputImageType::Pointer	InputImagePointer
typedef TInputImage	InputImageType
typedef TOutputImage	OutputImageType
typedef SmartPointer< Self >	Pointer
typedef LaplacianImageFilter	Self
typedef ImageToImageFilter < TInputImage, TOutputImage >	Superclass
Public Types inherited from itk::ImageToImageFilter< TInputImage, TOutputImage >
typedef InputImageType::ConstPointer	InputImageConstPointer
typedef InputImageType::PixelType	InputImagePixelType
typedef InputImageType::RegionType	InputImageRegionType
typedef Superclass::OutputImagePixelType	OutputImagePixelType
typedef Superclass::OutputImageRegionType	OutputImageRegionType
Public Types inherited from itk::ImageSource< TOutputImage >
typedef Superclass::DataObjectIdentifierType	DataObjectIdentifierType
typedef DataObject::Pointer	DataObjectPointer
typedef Superclass::DataObjectPointerArraySizeType	DataObjectPointerArraySizeType
typedef OutputImageType::Pointer	OutputImagePointer
Public Types inherited from itk::ProcessObject
typedef std::vector < DataObjectPointer >	DataObjectPointerArray
typedef std::vector < DataObjectIdentifierType >	NameArray
Public Types inherited from itk::Object
Public Types inherited from itk::LightObject

Public Member Functions
virtual ::itk::LightObject::Pointer	CreateAnother (void) const
virtual void	GenerateInputRequestedRegion () throw ( InvalidRequestedRegionError )
virtual const char *	GetNameOfClass () const
	typedef (Concept::SameDimension< InputImageDimension, ImageDimension >) SameDimensionCheck
	typedef (Concept::IsFloatingPoint< InputPixelType >) InputPixelTypeIsFloatingPointCheck
	typedef (Concept::IsFloatingPoint< OutputPixelType >) OutputPixelTypeIsFloatingPointCheck
virtual void	UseImageSpacingOff ()
virtual void	UseImageSpacingOn ()
virtual void	SetUseImageSpacing (bool _arg)
virtual bool	GetUseImageSpacing () const
Public Member Functions inherited from itk::ImageToImageFilter< TInputImage, TOutputImage >
const InputImageType *	GetInput (void) const
const InputImageType *	GetInput (unsigned int idx) const
virtual void	PopBackInput ()
virtual void	PopFrontInput ()
virtual void	PushBackInput (const InputImageType *image)
virtual void	PushFrontInput (const InputImageType *image)
virtual void	SetInput (const InputImageType *image)
virtual void	SetInput (unsigned int, const TInputImage *image)
Public Member Functions inherited from itk::ImageSource< TOutputImage >
OutputImageType *	GetOutput (unsigned int idx)
virtual void	GraftNthOutput (unsigned int idx, DataObject *output)
virtual void	GraftOutput (DataObject *output)
virtual void	GraftOutput (const DataObjectIdentifierType &key, DataObject *output)
OutputImageType *	GetOutput (void)
const OutputImageType *	GetOutput (void) const
virtual ProcessObject::DataObjectPointer	MakeOutput (ProcessObject::DataObjectPointerArraySizeType idx)
Public Member Functions inherited from itk::ProcessObject
virtual void	AbortGenerateDataOff ()
virtual void	AbortGenerateDataOn ()
virtual void	EnlargeOutputRequestedRegion (DataObject *)
virtual const bool &	GetAbortGenerateData ()
NameArray	GetInputNames () const
MultiThreader *	GetMultiThreader () const
DataObjectPointerArraySizeType	GetNumberOfIndexedInputs () const
DataObjectPointerArraySizeType	GetNumberOfInputs () const
DataObjectPointerArraySizeType	GetNumberOfOutputs () const
virtual DataObjectPointerArraySizeType	GetNumberOfValidRequiredInputs () const
NameArray	GetOutputNames () const
virtual const float &	GetProgress ()
NameArray	GetRequiredInputNames () const
bool	HasInput (const DataObjectIdentifierType &key) const
bool	HasOutput (const DataObjectIdentifierType &key) const
virtual DataObjectPointer	MakeOutput (const DataObjectIdentifierType &)
virtual void	PrepareOutputs ()
virtual void	PropagateRequestedRegion (DataObject *output)
virtual void	ResetPipeline ()
virtual void	SetAbortGenerateData (bool _arg)
virtual void	SetProgress (float _arg)
virtual void	Update ()
virtual void	UpdateLargestPossibleRegion ()
virtual void	UpdateOutputData (DataObject *output)
virtual void	UpdateOutputInformation ()
void	UpdateProgress (float amount)
DataObjectPointerArray	GetInputs ()
DataObjectPointerArray	GetOutputs ()
DataObjectPointerArray	GetIndexedInputs ()
DataObjectPointerArray	GetIndexedOutputs ()
DataObjectPointerArraySizeType	GetNumberOfIndexedOutputs () const
virtual void	SetReleaseDataFlag (bool flag)
virtual bool	GetReleaseDataFlag () const
void	ReleaseDataFlagOn ()
void	ReleaseDataFlagOff ()
virtual void	SetReleaseDataBeforeUpdateFlag (bool _arg)
virtual const bool &	GetReleaseDataBeforeUpdateFlag ()
virtual void	ReleaseDataBeforeUpdateFlagOn ()
virtual void	ReleaseDataBeforeUpdateFlagOff ()
virtual void	SetNumberOfThreads (ThreadIdType _arg)
virtual const ThreadIdType &	GetNumberOfThreads ()
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 (void)
const MetaDataDictionary &	GetMetaDataDictionary (void) const
virtual unsigned long	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
void	RemoveAllObservers ()
void	RemoveObserver (unsigned long tag)
void	SetDebug (bool debugFlag) const
void	SetMetaDataDictionary (const MetaDataDictionary &rhs)
virtual void	SetReferenceCount (int)
virtual void	UnRegister () 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 Attributes inherited from itk::ImageToImageFilter< TInputImage, TOutputImage >
static const unsigned int	OutputImageDimension = TOutputImage::ImageDimension
Static Public Attributes inherited from itk::ImageSource< TOutputImage >

Protected Member Functions
void	GenerateData ()
	LaplacianImageFilter ()
void	PrintSelf (std::ostream &, Indent) const
virtual	~LaplacianImageFilter ()
Protected Member Functions inherited from itk::ImageToImageFilter< TInputImage, TOutputImage >
virtual void	CallCopyInputRegionToOutputRegion (OutputImageRegionType &destRegion, const InputImageRegionType &srcRegion)
virtual void	CallCopyOutputRegionToInputRegion (InputImageRegionType &destRegion, const OutputImageRegionType &srcRegion)
	ImageToImageFilter ()
virtual void	VerifyInputInformation ()
	~ImageToImageFilter ()
void	PushBackInput (const DataObject *input)
void	PushFrontInput (const DataObject *input)
Protected Member Functions inherited from itk::ImageSource< TOutputImage >
virtual void	AfterThreadedGenerateData ()
virtual void	AllocateOutputs ()
virtual void	BeforeThreadedGenerateData ()
	ImageSource ()
virtual unsigned int	SplitRequestedRegion (unsigned int i, unsigned int num, OutputImageRegionType &splitRegion)
virtual void	ThreadedGenerateData (const OutputImageRegionType &outputRegionForThread, ThreadIdType threadId)
virtual	~ImageSource ()
Protected Member Functions inherited from itk::ProcessObject
virtual void	AddInput (DataObject *input)
virtual void	AddOutput (DataObject *output)
bool	AddRequiredInputName (const DataObjectIdentifierType &)
virtual void	CacheInputReleaseDataFlags ()
virtual void	GenerateOutputInformation ()
virtual void	GenerateOutputRequestedRegion (DataObject *output)
virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredInputs ()
virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredOutputs ()
bool	IsIndexedName (const DataObjectIdentifierType &) const
bool	IsRequiredInputName (const DataObjectIdentifierType &) const
	itkLegacyMacro (virtual void RemoveInput(DataObject *input))
	itkLegacyMacro (virtual void RemoveOutput(DataObject *output))
	itkLegacyMacro (void SetNumberOfInputs(DataObjectPointerArraySizeType num))
	itkLegacyMacro (void SetNumberOfOutputs(DataObjectPointerArraySizeType num))
DataObjectPointerArraySizeType	MakeIndexFromName (const DataObjectIdentifierType &) const
DataObjectIdentifierType	MakeNameFromIndex (DataObjectPointerArraySizeType) const
	ProcessObject ()
virtual void	PropagateResetPipeline ()
virtual void	ReleaseInputs ()
virtual void	RemoveInput (const DataObjectIdentifierType &key)
virtual void	RemoveInput (DataObjectPointerArraySizeType)
virtual void	RemoveOutput (const DataObjectIdentifierType &key)
virtual void	RemoveOutput (DataObjectPointerArraySizeType idx)
bool	RemoveRequiredInputName (const DataObjectIdentifierType &)
virtual void	RestoreInputReleaseDataFlags ()
virtual void	SetInput (const DataObjectIdentifierType &key, DataObject *input)
virtual void	SetNthInput (DataObjectPointerArraySizeType num, DataObject *input)
virtual void	SetNthOutput (DataObjectPointerArraySizeType num, DataObject *output)
void	SetNumberOfIndexedInputs (DataObjectPointerArraySizeType num)
void	SetNumberOfIndexedOutputs (DataObjectPointerArraySizeType num)
virtual void	SetNumberOfRequiredInputs (DataObjectPointerArraySizeType)
virtual void	SetNumberOfRequiredOutputs (DataObjectPointerArraySizeType _arg)
virtual void	SetOutput (const DataObjectIdentifierType &key, DataObject *output)
virtual void	SetPrimaryInput (DataObject *input)
virtual void	SetPrimaryOutput (DataObject *output)
void	SetRequiredInputNames (const NameArray &)
virtual void	VerifyPreconditions ()
	~ProcessObject ()
DataObject *	GetInput (const DataObjectIdentifierType &key)
const DataObject *	GetInput (const DataObjectIdentifierType &key) const
DataObject *	GetInput (DataObjectPointerArraySizeType)
const DataObject *	GetInput (DataObjectPointerArraySizeType idx) const
DataObject *	GetPrimaryInput ()
const DataObject *	GetPrimaryInput () const
DataObject *	GetOutput (const DataObjectIdentifierType &key)
const DataObject *	GetOutput (const DataObjectIdentifierType &key) const
DataObject *	GetOutput (DataObjectPointerArraySizeType idx)
const DataObject *	GetOutput (DataObjectPointerArraySizeType idx) const
DataObject *	GetPrimaryOutput ()
const DataObject *	GetPrimaryOutput () const
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
	LaplacianImageFilter (const Self &)
void	operator= (const Self &)

Private Attributes
bool	m_UseImageSpacing
typedef TOutputImage::PixelType	OutputPixelType
typedef TOutputImage::InternalPixelType	OutputInternalPixelType
typedef TInputImage::PixelType	InputPixelType
typedef TInputImage::InternalPixelType	InputInternalPixelType
static const unsigned int	InputImageDimension = TInputImage::ImageDimension
static const unsigned int	ImageDimension = TOutputImage::ImageDimension

Additional Inherited Members
Protected Types inherited from itk::ImageToImageFilter< TInputImage, TOutputImage >
typedef ImageToImageFilterDetail::ImageRegionCopier < itkGetStaticConstMacro(OutputImageDimension), itkGetStaticConstMacro(InputImageDimension) >	InputToOutputRegionCopierType
typedef ImageToImageFilterDetail::ImageRegionCopier < itkGetStaticConstMacro(InputImageDimension), itkGetStaticConstMacro(OutputImageDimension) >	OutputToInputRegionCopierType

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Detailed Description

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

This filter computes the Laplacian of a scalar-valued image. The Laplacian is an isotropic measure of the 2nd spatial derivative of an image. The Laplacian of an image highlights regions of rapid intensity change and is therefore often used for edge detection. Often, the Laplacian is applied to an image that has first been smoothed with a Gaussian filter in order to reduce its sensitivity to noise.

The Laplacian at each pixel location is computed by convolution with the itk::LaplacianOperator.

Inputs and Outputs

The input to this filter is a scalar-valued itk::Image of arbitrary dimension. The output is a scalar-valued itk::Image.

Warning:

The pixel type of the input and output images must be of real type (float or double). ConceptChecking is used here to enforce the input pixel type. You will get a compilation error if the pixel type of the input and output images is not float or double.

See also:

Image

Neighborhood

NeighborhoodOperator

NeighborhoodIterator

LaplacianOperator

Wiki Examples:

• All Examples

• Compute the Laplacian of an image

Definition at line 62 of file itkLaplacianImageFilter.h.

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Member Typedef Documentation

template<class TInputImage , class TOutputImage >

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

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

Definition at line 90 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef InputImageType::Pointer itk::LaplacianImageFilter< TInputImage, TOutputImage >::InputImagePointer

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

Definition at line 86 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef TInputImage itk::LaplacianImageFilter< TInputImage, TOutputImage >::InputImageType

Image typedef support.

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

Definition at line 84 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef TInputImage::InternalPixelType itk::LaplacianImageFilter< TInputImage, TOutputImage >::InputInternalPixelType

Extract some information from the image types. Dimensionality of the two images is assumed to be the same.

Definition at line 76 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef TInputImage::PixelType itk::LaplacianImageFilter< TInputImage, TOutputImage >::InputPixelType

Extract some information from the image types. Dimensionality of the two images is assumed to be the same.

Definition at line 75 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef TOutputImage itk::LaplacianImageFilter< TInputImage, TOutputImage >::OutputImageType

Some convenient typedefs.

Reimplemented from itk::ImageSource< TOutputImage >.

Definition at line 85 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef TOutputImage::InternalPixelType itk::LaplacianImageFilter< TInputImage, TOutputImage >::OutputInternalPixelType

Extract some information from the image types. Dimensionality of the two images is assumed to be the same.

Definition at line 74 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef TOutputImage::PixelType itk::LaplacianImageFilter< TInputImage, TOutputImage >::OutputPixelType

Extract some information from the image types. Dimensionality of the two images is assumed to be the same.

Definition at line 73 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

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

Smart pointer typedef support.

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

Definition at line 89 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

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

Standard "Self" & Superclass typedef.

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

Definition at line 68 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

typedef ImageToImageFilter< TInputImage, TOutputImage > itk::LaplacianImageFilter< TInputImage, TOutputImage >::Superclass

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

Definition at line 69 of file itkLaplacianImageFilter.h.

---

Constructor & Destructor Documentation

template<class TInputImage , class TOutputImage >

itk::LaplacianImageFilter< TInputImage, TOutputImage >::LaplacianImageFilter ( )

inlineprotected

End concept checking

Definition at line 131 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

virtual itk::LaplacianImageFilter< TInputImage, TOutputImage >::~LaplacianImageFilter ( )

inlineprotectedvirtual

Definition at line 136 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

itk::LaplacianImageFilter< TInputImage, TOutputImage >::LaplacianImageFilter ( const Self &  )

private

---

Member Function Documentation

template<class TInputImage , class TOutputImage >

virtual::itk::LightObject::Pointer itk::LaplacianImageFilter< TInputImage, TOutputImage >::CreateAnother ( void  ) 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<class TInputImage , class TOutputImage >

void itk::LaplacianImageFilter< TInputImage, TOutputImage >::GenerateData ( )

protectedvirtual

Standard pipeline method. While this class does not implement a ThreadedGenerateData(), its GenerateData() delegates all calculations to an NeighborhoodOperatorImageFilter. Since the NeighborhoodOperatorImageFilter is multithreaded, this filter is multithreaded by default.

Reimplemented from itk::ImageSource< TOutputImage >.

template<class TInputImage , class TOutputImage >

virtual void itk::LaplacianImageFilter< TInputImage, TOutputImage >::GenerateInputRequestedRegion ( ) throw ( InvalidRequestedRegionError )

virtual

LaplacianImageFilter needs a larger input requested region than the output requested region (larger in the direction of the derivative). As such, LaplacianImageFilter needs to provide an implementation for GenerateInputRequestedRegion() in order to inform the pipeline execution model.

See also:

ImageToImageFilter::GenerateInputRequestedRegion()

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

template<class TInputImage , class TOutputImage >

virtual const char* itk::LaplacianImageFilter< TInputImage, TOutputImage >::GetNameOfClass ( ) const

virtual

Run-time type information (and related methods)

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

template<class TInputImage , class TOutputImage >

virtual bool itk::LaplacianImageFilter< TInputImage, TOutputImage >::GetUseImageSpacing ( ) const

virtual

Set/Get whether or not the filter will use the spacing of the input image in its calculations

template<class TInputImage , class TOutputImage >

static Pointer itk::LaplacianImageFilter< TInputImage, TOutputImage >::New ( )

static

Method for creation through the object factory.

Reimplemented from itk::Object.

template<class TInputImage , class TOutputImage >

void itk::LaplacianImageFilter< 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::ImageToImageFilter< TInputImage, TOutputImage >.

template<class TInputImage , class TOutputImage >

void itk::LaplacianImageFilter< TInputImage, TOutputImage >::PrintSelf ( std::ostream &  os, Indent  indent  ) const

protectedvirtual

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::ImageToImageFilter< TInputImage, TOutputImage >.

template<class TInputImage , class TOutputImage >

virtual void itk::LaplacianImageFilter< TInputImage, TOutputImage >::SetUseImageSpacing ( bool  _arg )

virtual

Set/Get whether or not the filter will use the spacing of the input image in its calculations

template<class TInputImage , class TOutputImage >

itk::LaplacianImageFilter< TInputImage, TOutputImage >::typedef

(

Concept::SameDimension< InputImageDimension, ImageDimension >

)

Begin concept checking This class requires SameDimensionCheck in the form of ( Concept::SameDimension< InputImageDimension, ImageDimension > )

template<class TInputImage , class TOutputImage >

itk::LaplacianImageFilter< TInputImage, TOutputImage >::typedef

(

Concept::IsFloatingPoint< InputPixelType >

)

This class requires InputPixelTypeIsFloatingPointCheck in the form of ( Concept::IsFloatingPoint< InputPixelType > )

template<class TInputImage , class TOutputImage >

itk::LaplacianImageFilter< TInputImage, TOutputImage >::typedef

(

Concept::IsFloatingPoint< OutputPixelType >

)

This class requires OutputPixelTypeIsFloatingPointCheck in the form of ( Concept::IsFloatingPoint< OutputPixelType > )

template<class TInputImage , class TOutputImage >

virtual void itk::LaplacianImageFilter< TInputImage, TOutputImage >::UseImageSpacingOff ( )

virtual

template<class TInputImage , class TOutputImage >

virtual void itk::LaplacianImageFilter< TInputImage, TOutputImage >::UseImageSpacingOn ( )

virtual

Enable/Disable using the image spacing information in calculations. Use this option if you want derivatives in physical space. Default is UseImageSpacingOn.

---

Member Data Documentation

template<class TInputImage , class TOutputImage >

const unsigned int itk::LaplacianImageFilter< TInputImage, TOutputImage >::ImageDimension = TOutputImage::ImageDimension

static

Extract some information from the image types. Dimensionality of the two images is assumed to be the same.

Definition at line 80 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

const unsigned int itk::LaplacianImageFilter< TInputImage, TOutputImage >::InputImageDimension = TInputImage::ImageDimension

static

Extract some information from the image types. Dimensionality of the two images is assumed to be the same.

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

Definition at line 78 of file itkLaplacianImageFilter.h.

template<class TInputImage , class TOutputImage >

bool itk::LaplacianImageFilter< TInputImage, TOutputImage >::m_UseImageSpacing

private

Definition at line 150 of file itkLaplacianImageFilter.h.

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

• itkLaplacianImageFilter.h