#include <itkImageToImageFilter.h>

Inherits itk::ImageSource< TOutputImage >, and itk::ImageToImageFilterCommon.

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

Detailed Description

template<typename TInputImage, typename TOutputImage>
class itk::ImageToImageFilter< TInputImage, TOutputImage >

Base class for filters that take an image as input and produce an image as output.

ImageToImageFilter is the base class for all process objects that output image data and require image data as input. Specifically, this class defines the SetInput() method for defining the input to a filter.

This class provides the infrastructure for supporting multithreaded processing of images. If a filter provides an implementation of GenerateData(), the image processing will run in a single thread and the implementation is responsible for allocating its output data. If a filter provides an implementation of ThreadedGenerateData() instead, the image will be divided into a number of pieces, a number of threads will be spawned, and ThreadedGenerateData() will be called in each thread. Here, the output memory will be allocated by this superclass prior to calling ThreadedGenerateData().

ImageToImageFilter provides an implementation of GenerateInputRequestedRegion(). The base assumption to this point in the hierarchy is that a process object would ask for the largest possible region on input in order to produce any output. Imaging filters, however, can usually answer this question more precisely. The default implementation of GenerateInputRequestedRegion() in this class is to request an input that matches the size of the requested output. If a filter requires more input (say a filter that uses neighborhood information) or less input (for instance a magnify filter), then these filters will have to provide another implmentation of this method. By convention, such implementations should call the Superclass' method first.

All inputs to ImageToImageFilter (if there is more than one) are checked in the VerifyInputInformation method to verify that they occupy the same physical space. If the input images are in the same physical space, then the location of each voxel is identical, and the filter can operate voxel-by-voxel in index space. Some filters – registration filters, for example – will violate this precondition, in which case they should redefine VerifyInputInformation to relax or eliminate this requirement.

Access methods – Set/GetCoordinateTolerance and Set/GetDirectionTolerance – are provided for cases where the default spatial-congruency tolerances are too fine, and images that are almost in the same space should be regard as being in the same space. This has come up, for example when comparing different on-disk image formats with differing digits of precision in the position, spacing, and orientation.

The default tolerance is govern by the GlobalDefaultCoordinateTolerance and the GlobalDefaultDirectionTolerance properties, defaulting to 1.0e-6. The default tolerance for spatial comparison is then scaled by the voxelSpacing for coordinates (i.e. the coordinates must be the same to within one part per million). For the direction cosines the values must be within the current absolute tolerance.

Wiki Examples:

Definition at line 107 of file itkImageToImageFilter.h.

Public Types
typedef SmartPointer< const Self >	ConstPointer

typedef InputImageType::ConstPointer	InputImageConstPointer

typedef InputImageType::PixelType	InputImagePixelType

typedef InputImageType::Pointer	InputImagePointer

typedef InputImageType::RegionType	InputImageRegionType

typedef TInputImage	InputImageType

typedef Superclass::OutputImagePixelType	OutputImagePixelType

typedef Superclass::OutputImageRegionType	OutputImageRegionType

typedef SmartPointer< Self >	Pointer

typedef ImageToImageFilter	Self

typedef ImageSource< TOutputImage >	Superclass

Public Types inherited from itk::ImageSource< TOutputImage >
typedef SmartPointer< const Self >	ConstPointer

typedef Superclass::DataObjectIdentifierType	DataObjectIdentifierType

typedef DataObject::Pointer	DataObjectPointer

typedef Superclass::DataObjectPointerArraySizeType	DataObjectPointerArraySizeType

typedef OutputImageType::PixelType	OutputImagePixelType

typedef OutputImageType::Pointer	OutputImagePointer

typedef OutputImageType::RegionType	OutputImageRegionType

typedef TOutputImage	OutputImageType

typedef SmartPointer< Self >	Pointer

typedef ImageSource	Self

typedef ProcessObject	Superclass

Public Types inherited from itk::ProcessObject
typedef SmartPointer< const Self >	ConstPointer

typedef DataObject::DataObjectIdentifierType	DataObjectIdentifierType

typedef DataObject::Pointer	DataObjectPointer

typedef std::vector < DataObjectPointer >	DataObjectPointerArray

typedef DataObjectPointerArray::size_type	DataObjectPointerArraySizeType

typedef std::vector < DataObjectIdentifierType >	NameArray

typedef SmartPointer< Self >	Pointer

typedef ProcessObject	Self

typedef Object	Superclass

Public Types inherited from itk::Object
typedef SmartPointer< const Self >	ConstPointer

typedef SmartPointer< Self >	Pointer

typedef Object	Self

typedef LightObject	Superclass

Public Types inherited from itk::LightObject
typedef SmartPointer< const Self >	ConstPointer

typedef SmartPointer< Self >	Pointer

typedef LightObject	Self

Public Member Functions
const InputImageType *	GetInput () const

const InputImageType *	GetInput (unsigned int idx) const

virtual const char *	GetNameOfClass () const

virtual void	PopBackInput () override

virtual void	PopFrontInput () override

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)


virtual void	SetCoordinateTolerance (double _arg)

virtual double	GetCoordinateTolerance () const


virtual void	SetDirectionTolerance (double _arg)

virtual double	GetDirectionTolerance () const

Public Member Functions inherited from itk::ImageSource< TOutputImage >
OutputImageType *	GetOutput (unsigned int idx)

virtual void	GraftNthOutput (unsigned int idx, DataObject *output)

virtual void	GraftOutput (const DataObjectIdentifierType &key, DataObject *output)

OutputImageType *	GetOutput ()

const OutputImageType *	GetOutput () const

virtual void	GraftOutput (DataObject *output)

virtual ProcessObject::DataObjectPointer	MakeOutput (ProcessObject::DataObjectPointerArraySizeType idx) override

virtual ProcessObject::DataObjectPointer	MakeOutput (const ProcessObject::DataObjectIdentifierType &) override

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

virtual void	AbortGenerateDataOn ()

virtual void	EnlargeOutputRequestedRegion (DataObject *)

virtual const bool &	GetAbortGenerateData () const

DataObjectPointerArray	GetIndexedInputs ()

DataObjectPointerArray	GetIndexedOutputs ()

NameArray	GetInputNames () const

DataObjectPointerArray	GetInputs ()

MultiThreader *	GetMultiThreader () const

DataObjectPointerArraySizeType	GetNumberOfIndexedInputs () const

DataObjectPointerArraySizeType	GetNumberOfIndexedOutputs () const

DataObjectPointerArraySizeType	GetNumberOfInputs () const

DataObjectPointerArraySizeType	GetNumberOfOutputs () const

virtual DataObjectPointerArraySizeType	GetNumberOfValidRequiredInputs () const

NameArray	GetOutputNames () const

DataObjectPointerArray	GetOutputs ()

virtual const float &	GetProgress () const

NameArray	GetRequiredInputNames () const

bool	HasInput (const DataObjectIdentifierType &key) const

bool	HasOutput (const DataObjectIdentifierType &key) const

virtual void	PrepareOutputs ()

virtual void	PropagateRequestedRegion (DataObject *output)

virtual void	ResetPipeline ()

virtual void	SetAbortGenerateData (bool _arg)

virtual void	Update ()

virtual void	UpdateLargestPossibleRegion ()

virtual void	UpdateOutputData (DataObject *output)

virtual void	UpdateOutputInformation ()

void	UpdateProgress (float progress)

void	SetProgress (float progress)

virtual void	SetReleaseDataFlag (bool flag)

virtual bool	GetReleaseDataFlag () const

void	ReleaseDataFlagOn ()

void	ReleaseDataFlagOff ()

virtual void	SetReleaseDataBeforeUpdateFlag (bool _arg)

virtual const bool &	GetReleaseDataBeforeUpdateFlag () const

virtual void	ReleaseDataBeforeUpdateFlagOn ()

virtual void	ReleaseDataBeforeUpdateFlagOff ()

virtual void	SetNumberOfThreads (ThreadIdType _arg)

virtual const ThreadIdType &	GetNumberOfThreads () const

Public Member Functions inherited from itk::Object
unsigned long	AddObserver (const EventObject &event, Command *)

unsigned long	AddObserver (const EventObject &event, Command *) const

virtual LightObject::Pointer	CreateAnother () const override

virtual void	DebugOff () const

virtual void	DebugOn () const

Command *	GetCommand (unsigned long tag)

bool	GetDebug () const

MetaDataDictionary &	GetMetaDataDictionary ()

const MetaDataDictionary &	GetMetaDataDictionary () const

virtual ModifiedTimeType	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 override

void	RemoveAllObservers ()

void	RemoveObserver (unsigned long tag)

void	SetDebug (bool debugFlag) const

void	SetMetaDataDictionary (const MetaDataDictionary &rhs)

virtual void	SetReferenceCount (int) override

virtual void	UnRegister () const noexceptoverride

virtual void	SetObjectName (std::string _arg)

virtual const std::string &	GetObjectName () 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 Attributes

static const unsigned int	InputImageDimension = TInputImage::ImageDimension

static const unsigned int	OutputImageDimension = TOutputImage::ImageDimension

Static Public Attributes inherited from itk::ImageSource< TOutputImage >
static const unsigned int	OutputImageDimension = TOutputImage::ImageDimension

Protected Types
typedef ImageToImageFilterDetail::ImageRegionCopier < itkGetStaticConstMacro(OutputImageDimension), itkGetStaticConstMacro(InputImageDimension) >	InputToOutputRegionCopierType

typedef ImageToImageFilterDetail::ImageRegionCopier < itkGetStaticConstMacro(InputImageDimension), itkGetStaticConstMacro(OutputImageDimension) >	OutputToInputRegionCopierType

Protected Member Functions
virtual void	CallCopyInputRegionToOutputRegion (OutputImageRegionType &destRegion, const InputImageRegionType &srcRegion)

virtual void	CallCopyOutputRegionToInputRegion (InputImageRegionType &destRegion, const OutputImageRegionType &srcRegion)

virtual void	GenerateInputRequestedRegion () override

	ImageToImageFilter ()

virtual void	PrintSelf (std::ostream &os, Indent indent) const override

virtual void	VerifyInputInformation () override

	~ImageToImageFilter ()


void	PushBackInput (const DataObject *input) override

void	PushFrontInput (const DataObject *input) override

Protected Member Functions inherited from itk::ImageSource< TOutputImage >
virtual void	AfterThreadedGenerateData ()

virtual void	AllocateOutputs ()

virtual void	BeforeThreadedGenerateData ()

virtual void	GenerateData () override

virtual const ImageRegionSplitterBase *	GetImageRegionSplitter () const

	ImageSource ()

virtual unsigned int	SplitRequestedRegion (unsigned int i, unsigned int pieces, 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 &)

bool	AddRequiredInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx)

virtual void	CacheInputReleaseDataFlags ()

virtual void	GenerateOutputInformation ()

virtual void	GenerateOutputRequestedRegion (DataObject *output)

DataObject *	GetInput (const DataObjectIdentifierType &key)

const DataObject *	GetInput (const DataObjectIdentifierType &key) const

virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredInputs () const

virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredOutputs () const

bool	IsIndexedInputName (const DataObjectIdentifierType &) const

bool	IsIndexedOutputName (const DataObjectIdentifierType &) const

bool	IsRequiredInputName (const DataObjectIdentifierType &) const

	itkLegacyMacro (virtual void RemoveOutput(DataObject *output))

	itkLegacyMacro (void SetNumberOfOutputs(DataObjectPointerArraySizeType num))

	itkLegacyMacro (virtual void RemoveInput(DataObject *input))

	itkLegacyMacro (void SetNumberOfInputs(DataObjectPointerArraySizeType num))

DataObjectPointerArraySizeType	MakeIndexFromInputName (const DataObjectIdentifierType &name) const

DataObjectPointerArraySizeType	MakeIndexFromOutputName (const DataObjectIdentifierType &name) const

DataObjectIdentifierType	MakeNameFromInputIndex (DataObjectPointerArraySizeType idx) const

DataObjectIdentifierType	MakeNameFromOutputIndex (DataObjectPointerArraySizeType idx) 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 (DataObjectPointerArraySizeType idx)

const DataObject *	GetInput (DataObjectPointerArraySizeType idx) const

DataObject *	GetPrimaryInput ()

const DataObject *	GetPrimaryInput () const

virtual void	SetPrimaryInputName (const DataObjectIdentifierType &key)

virtual const char *	GetPrimaryInputName (void) const

DataObject *	GetOutput (const DataObjectIdentifierType &key)

const DataObject *	GetOutput (const DataObjectIdentifierType &key) const

virtual void	SetPrimaryOutputName (const DataObjectIdentifierType &key)

virtual const char *	GetPrimaryOutputName (void) 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
	ImageToImageFilter (const Self &) ITK_DELETE_FUNCTION

void	operator= (const Self &) ITK_DELETE_FUNCTION

Private Attributes
double	m_CoordinateTolerance

double	m_DirectionTolerance

Additional Inherited Members
Static Public Member Functions inherited from itk::Object
static bool	GetGlobalWarningDisplay ()

static void	GlobalWarningDisplayOff ()

static void	GlobalWarningDisplayOn ()

static Pointer	New ()

static void	SetGlobalWarningDisplay (bool flag)

Static Public Member Functions inherited from itk::LightObject
static void	BreakOnError ()

static Pointer	New ()

Static Protected Member Functions inherited from itk::ImageSource< TOutputImage >
static const ImageRegionSplitterBase *	GetGlobalDefaultSplitter ()

static ITK_THREAD_RETURN_TYPE	ThreaderCallback (void *arg)

Protected Attributes inherited from itk::ProcessObject
TimeStamp	m_OutputInformationMTime

bool	m_Updating

Protected Attributes inherited from itk::LightObject
AtomicInt< int >	m_ReferenceCount

Static Private Member Functions inherited from itk::ImageToImageFilterCommon
static double	GetGlobalDefaultCoordinateTolerance ()

static double	GetGlobalDefaultDirectionTolerance ()

static void	SetGlobalDefaultCoordinateTolerance (double)

static void	SetGlobalDefaultDirectionTolerance (double)

Member Typedef Documentation

template<typename TInputImage, typename TOutputImage>

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

Definition at line 115 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

typedef InputImageType::ConstPointer itk::ImageToImageFilter< TInputImage, TOutputImage >::InputImageConstPointer

Definition at line 127 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

typedef InputImageType::PixelType itk::ImageToImageFilter< TInputImage, TOutputImage >::InputImagePixelType

Definition at line 129 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

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

Definition at line 126 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

typedef InputImageType::RegionType itk::ImageToImageFilter< TInputImage, TOutputImage >::InputImageRegionType

Definition at line 128 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

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

Some convenient typedefs.

Definition at line 125 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

typedef ImageToImageFilterDetail::ImageRegionCopier< itkGetStaticConstMacro(OutputImageDimension), itkGetStaticConstMacro(InputImageDimension) > itk::ImageToImageFilter< TInputImage, TOutputImage >::InputToOutputRegionCopierType

protected

Typedef for the region copier function object that converts an input region to an output region.

Definition at line 270 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

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

Definition at line 122 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

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

Superclass typedefs.

Definition at line 118 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

typedef ImageToImageFilterDetail::ImageRegionCopier< itkGetStaticConstMacro(InputImageDimension), itkGetStaticConstMacro(OutputImageDimension) > itk::ImageToImageFilter< TInputImage, TOutputImage >::OutputToInputRegionCopierType

protected

Typedef for the region copier function object that converts an output region to an input region.

Definition at line 276 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

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

Definition at line 114 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

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

Standard class typedefs.

Definition at line 112 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

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

Definition at line 113 of file itkImageToImageFilter.h.

Constructor & Destructor Documentation

template<typename TInputImage, typename TOutputImage>

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

protected

template<typename TInputImage, typename TOutputImage>

itk::ImageToImageFilter< TInputImage, TOutputImage >::~ImageToImageFilter ( )

protected

template<typename TInputImage, typename TOutputImage>

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

private

Member Function Documentation

template<typename TInputImage, typename TOutputImage>

virtual void itk::ImageToImageFilter< TInputImage, TOutputImage >::CallCopyInputRegionToOutputRegion	(	OutputImageRegionType &	destRegion,
		const InputImageRegionType &	srcRegion
	)

protectedvirtual

This function calls the actual region copier to do the mapping from input image space to output image space. It uses a Function object used for dispatching to various routines to copy an input region (start index and size) to an output region. For most filters, this is a trivial copy because most filters require the input dimension to match the output dimension. However, some filters like itk::UnaryFunctorImageFilter can support output images of a higher dimension that the input.

This function object is used by the default implementation of GenerateOutputInformation(). It can also be used in routines like ThreadedGenerateData() where a filter may need to map an input region to an output region.

The default copier uses a "dispatch pattern" to call one of three overloaded functions depending on whether the input and output images are the same dimension, the input is a higher dimension that the output, or the input is of a lower dimension than the output. The use of an overloaded function is required for proper compilation of the various cases.

For the latter two cases, trivial implementations are used. If the input image is a higher dimension than the output, the first portion of the input region is copied to the output region. If the input region is a lower dimension than the output, the input region information is copied into the first portion of the output region and the rest of the output region is set to zero.

If a filter needs a different default behavior, it can override this method.

template<typename TInputImage, typename TOutputImage>

virtual void itk::ImageToImageFilter< TInputImage, TOutputImage >::CallCopyOutputRegionToInputRegion	(	InputImageRegionType &	destRegion,
		const OutputImageRegionType &	srcRegion
	)

protectedvirtual

This function calls the actual region copier to do the mapping from output image space to input image space. It uses a Function object used for dispatching to various routines to copy an output region (start index and size) to an input region. For most filters, this is a trivial copy because most filters require the input dimension to match the output dimension. However, some filters like itk::ExtractImageFilter can support output images of a lower dimension that the input.

This function object can be used by GenerateOutputInformation() to copy the input LargestPossibleRegion to the output LargestPossibleRegion and can also be used in GenerateData or ThreadedGenerateData() where a filter may need to map an output region to an input region.

The default copier uses a "dispatch pattern" to call one of three overloaded functions depending on whether the input and output images are the same dimension, the input is a higher dimension that the output, or the input is of a lower dimension than the output. The use of an overloaded function is required for proper compilation of the various cases.

For the latter two cases, trivial implementations are used. If the input image is a higher dimension than the output, the output region information is copied into the first portion of the input region and the rest of the input region is set to zero. If the input region is a lower dimension than the output, the first portion of the output region is copied to the input region.

If a filter needs a different default behavior, it can override this method. The ExtractImageFilter overrides this function object so that if the input image is a higher dimension than the output image, the filter can control "where" in the input image the output subimage is extracted (as opposed to mapping to first few dimensions of the input).

template<typename TInputImage, typename TOutputImage>

virtual void itk::ImageToImageFilter< TInputImage, TOutputImage >::GenerateInputRequestedRegion ( )

overrideprotectedvirtual

What is the input requested region that is required to produce the output requested region? The base assumption for image processing filters is that the input requested region can be set to match the output requested region. If a filter requires more input (for instance a filter that uses neighborhoods needs more input than output to avoid introducing artificial boundary conditions) or less input (for instance a magnify filter) will have to override this method. In doing so, it should call its superclass' implementation as its first step. Note that imaging filters operate differently than the classes to this point in the class hierarchy. Up till now, the base assumption has been that the largest possible region will be requested of the input.

This implementation of GenerateInputRequestedRegion() only processes the inputs that are a subclass of the ImageBase<InputImageDimension>. If an input is another type of DataObject (including an Image of a different dimension), they are skipped by this method. The subclasses of ImageToImageFilter are responsible for providing an implementation of GenerateInputRequestedRegion() when there are multiple inputs of different types.

See Also: ProcessObject::GenerateInputRequestedRegion(), ImageSource::GenerateInputRequestedRegion()

Reimplemented from itk::ProcessObject.

template<typename TInputImage, typename TOutputImage>

virtual double itk::ImageToImageFilter< TInputImage, TOutputImage >::GetCoordinateTolerance ( ) const

virtual

get/set the Coordinate tolerance This tolerance is used when comparing the space defined by the input images. With ITK 4.x a requirement has been added that both input images be congruent in space.

template<typename TInputImage, typename TOutputImage>

virtual double itk::ImageToImageFilter< TInputImage, TOutputImage >::GetDirectionTolerance ( ) const

virtual

get/set the direction tolerance This tolerance is used to make sure that all input images are oriented the same before performing the filter's transformations.

template<typename TInputImage, typename TOutputImage>

const InputImageType* itk::ImageToImageFilter< TInputImage, TOutputImage >::GetInput ( ) const

template<typename TInputImage, typename TOutputImage>

const InputImageType* itk::ImageToImageFilter< TInputImage, TOutputImage >::GetInput ( unsigned int idx ) const

template<typename TInputImage, typename TOutputImage>

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

virtual

Run-time type information (and related methods).

Reimplemented from itk::ImageSource< TOutputImage >.

template<typename TInputImage, typename TOutputImage>

void itk::ImageToImageFilter< TInputImage, TOutputImage >::operator= ( const Self & )

private

template<typename TInputImage, typename TOutputImage>

virtual void itk::ImageToImageFilter< TInputImage, TOutputImage >::PopBackInput ( )

overridevirtual

Reimplemented from itk::ProcessObject.

template<typename TInputImage, typename TOutputImage>

virtual void itk::ImageToImageFilter< TInputImage, TOutputImage >::PopFrontInput ( )

overridevirtual

Reimplemented from itk::ProcessObject.

template<typename TInputImage, typename TOutputImage>

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

overrideprotectedvirtual

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::ProcessObject.

Referenced by itk::HardConnectedComponentImageFilter< TInputImage, TOutputImage >::PrintSelf(), itk::SobelEdgeDetectionImageFilter< TInputImage, TOutputImage >::PrintSelf(), itk::VectorNeighborhoodOperatorImageFilter< TInputImage, TOutputImage >::PrintSelf(), and itk::NeighborhoodOperatorImageFilter< TInputImage, TOutputImage, TOperatorValueType >::PrintSelf().

template<typename TInputImage, typename TOutputImage>

virtual void itk::ImageToImageFilter< TInputImage, TOutputImage >::PushBackInput ( const InputImageType * image )

virtual

Push/Pop the input of this process object. These methods allow a filter to model its input vector as a queue or stack. These routines may not be appropriate for all filters, especially filters with different types of inputs. These routines follow the semantics of STL.

The routines are useful for applications that need to process "rolling" sets of images. For instance, if an application has 10 images and they need to run a filter on images 1, 2, 3, 4, then run the filter on images 2, 3, 4, 5, then run the filter on images 3, 4, 5, 6, the application can accomplish this by popping an input off the front of the input list and push a new image onto the back of input list. Again, this only makes sense for filters that single type of input.

Other uses are also possible. For a single input filter, pushing and popping inputs allow the application to temporarily replace an input to a filter.

template<typename TInputImage, typename TOutputImage>

void itk::ImageToImageFilter< TInputImage, TOutputImage >::PushBackInput ( const DataObject * input )

inlineoverrideprotectedvirtual

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::ProcessObject.

Definition at line 357 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

virtual void itk::ImageToImageFilter< TInputImage, TOutputImage >::PushFrontInput ( const InputImageType * image )

virtual

template<typename TInputImage, typename TOutputImage>

void itk::ImageToImageFilter< TInputImage, TOutputImage >::PushFrontInput ( const DataObject * input )

inlineoverrideprotectedvirtual

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::ProcessObject.

Definition at line 359 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

virtual void itk::ImageToImageFilter< TInputImage, TOutputImage >::SetCoordinateTolerance ( double _arg )

virtual

get/set the Coordinate tolerance This tolerance is used when comparing the space defined by the input images. With ITK 4.x a requirement has been added that both input images be congruent in space.

template<typename TInputImage, typename TOutputImage>

virtual void itk::ImageToImageFilter< TInputImage, TOutputImage >::SetDirectionTolerance ( double _arg )

virtual

get/set the direction tolerance This tolerance is used to make sure that all input images are oriented the same before performing the filter's transformations.

template<typename TInputImage, typename TOutputImage>

virtual void itk::ImageToImageFilter< TInputImage, TOutputImage >::SetInput ( const InputImageType * image )

virtual

Reimplemented in itk::WatershedImageFilter< TInputImage >, and itk::VoronoiSegmentationRGBImageFilter< TInputImage, TOutputImage >.

template<typename TInputImage, typename TOutputImage>

virtual void itk::ImageToImageFilter< TInputImage, TOutputImage >::SetInput	(	unsigned	int,
		const TInputImage *	image
	)

virtual

Reimplemented in itk::WatershedImageFilter< TInputImage >, and itk::VoronoiSegmentationRGBImageFilter< TInputImage, TOutputImage >.

template<typename TInputImage, typename TOutputImage>

virtual void itk::ImageToImageFilter< TInputImage, TOutputImage >::VerifyInputInformation ( )

overrideprotectedvirtual

Verifies that the input images occupy the same physical space and the each index is at the same physical location.

The default implementation of the PropagateRequestedRegion methods copies the index and size from the output to the input. This makes an implicit assumption that the images occupy the same physical location at each voxel. This method enforces that they are the same.

This implementation verifies that all input images of InputImageDimensions have the same origin, spacing and direction.

Filters which do not expect all input images to be at the same physical location should over-ride this method. Also filters whose inputs are different dimensions may need to overide this method.

See Also: ProcessObject::VerifyInputInformation

Reimplemented from itk::ProcessObject.

Member Data Documentation

template<typename TInputImage, typename TOutputImage>

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

static

ImageDimension constants

Definition at line 133 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

double itk::ImageToImageFilter< TInputImage, TOutputImage >::m_CoordinateTolerance

private

Tolerances for checking whether input images are defined to occupy the same physical space.

Definition at line 370 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

double itk::ImageToImageFilter< TInputImage, TOutputImage >::m_DirectionTolerance

private

Definition at line 371 of file itkImageToImageFilter.h.

template<typename TInputImage, typename TOutputImage>

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

static

ImageDimension constants

Definition at line 135 of file itkImageToImageFilter.h.

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

itkImageToImageFilter.h

Detailed Description

template<typename TInputImage, typename TOutputImage> class itk::ImageToImageFilter< TInputImage, TOutputImage >

Public Types

Public Member Functions

Static Public Attributes

Protected Types

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<typename TInputImage, typename TOutputImage>
class itk::ImageToImageFilter< TInputImage, TOutputImage >