#include <itkImageRegionSplitter.h>

Inheritance diagram for itk::ImageRegionSplitter< VImageDimension >:

Collaboration diagram for itk::ImageRegionSplitter< VImageDimension >:

Detailed Description

template<unsigned int VImageDimension>
class itk::ImageRegionSplitter< VImageDimension >

Divide a region into several pieces.

ImageRegionSplitter divides an ImageRegion into smaller regions. ImageRegionSplitter is used by the StreamingImageFilter to divide a requested output region into a series of smaller requests of the pipeline. This object has two basic methods: GetNumberOfSplits() and GetSplit().

GetNumberOfSplits() is used to determine how may subregions a given region can be divided. You call GetNumberOfSplits with an argument that is the number of subregions you want. If the image region can support that number of subregions, that number is returned. Otherwise, the maximum number of splits less then or equal to the argumen be returned. For example, if a region splitter class only divides a region into horizontal slabs, then the maximum number of splits will be the number of rows in the region.

GetSplit() returns the ith of N subregions (as an ImageRegion object).

This ImageRegionSplitter class divides a region along the outermost dimension. If the outermost dimension has size 1 (i.e. a volume with a single slice), the ImageRegionSplitter will divide the region along the next outermost dimension. If that dimension has size 1, the process continues with the next outermost dimension.

Other ImageRegionSplitter subclasses could divide an image into more uniform shaped regions instead of slabs.

Deprecated:: The new class ImageRegionSplitterSlowDimension can be used as a drop in replacement for functionality as it implements the same algorithm. The ImageRegionSplitterBase is now the abstract base class for all image splitter. New splitting object should be derived from that class.

See Also: ImageRegionSplitterSlowDimension; ImageRegionSplitterBase

Definition at line 68 of file itkImageRegionSplitter.h.

Public Types
typedef SmartPointer< const Self >	ConstPointer

typedef Index< VImageDimension >	IndexType

typedef SmartPointer< Self >	Pointer

typedef ImageRegion < VImageDimension >	RegionType

typedef ImageRegionSplitter	Self

typedef Size< VImageDimension >	SizeType

typedef SizeType::SizeValueType	SizeValueType

typedef ImageRegionSplitterBase	Superclass

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

typedef SmartPointer< Self >	Pointer

typedef ImageRegionSplitterBase	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
virtual ::itk::LightObject::Pointer	CreateAnother () const

virtual const char *	GetNameOfClass () const

virtual unsigned int	GetNumberOfSplits (const RegionType &region, unsigned int requestedNumber)

virtual RegionType	GetSplit (unsigned int i, unsigned int numberOfPieces, const RegionType &region)

Public Member Functions inherited from itk::ImageRegionSplitterBase
template<unsigned int VImageDimension>
unsigned int	GetSplit (unsigned int i, unsigned int numberOfPieces, ImageRegion< VImageDimension > &region) const

unsigned int	GetSplit (unsigned int i, unsigned int numberOfPieces, ImageIORegion &region) const

template<unsigned int VImageDimension>
unsigned int	GetNumberOfSplits (const ImageRegion< VImageDimension > &region, unsigned int requestedNumber) const

unsigned int	GetNumberOfSplits (const ImageIORegion &region, unsigned int requestedNumber) const

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 ()

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 Member Functions
static unsigned int	GetImageDimension ()

static Pointer	New ()

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 Public Attributes
static const unsigned int	ImageDimension = VImageDimension

Protected Member Functions
virtual unsigned int	GetNumberOfSplitsInternal (unsigned int, const IndexValueType regionIndex[], const SizeValueType regionSize[], unsigned int requestedNumber) const override

virtual unsigned int	GetSplitInternal (unsigned int dim, unsigned int i, unsigned int numberOfPieces, IndexValueType regionIndex[], SizeValueType regionSize[]) const override

	ImageRegionSplitter ()

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

	~ImageRegionSplitter ()

Protected Member Functions inherited from itk::ImageRegionSplitterBase
	ImageRegionSplitterBase ()

Protected Member Functions inherited from itk::Object
	Object ()

bool	PrintObservers (std::ostream &os, Indent indent) const

virtual void	SetTimeStamp (const TimeStamp &time)

virtual	~Object () override

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 ()

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

Member Typedef Documentation

template<unsigned int VImageDimension>

typedef SmartPointer< const Self > itk::ImageRegionSplitter< VImageDimension >::ConstPointer

Definition at line 75 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension>

typedef Index< VImageDimension > itk::ImageRegionSplitter< VImageDimension >::IndexType

Index typedef support. An index is used to access pixel values.

Definition at line 91 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension>

typedef SmartPointer< Self > itk::ImageRegionSplitter< VImageDimension >::Pointer

Definition at line 74 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension>

typedef ImageRegion< VImageDimension > itk::ImageRegionSplitter< VImageDimension >::RegionType

Region typedef support.

Definition at line 98 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension>

typedef ImageRegionSplitter itk::ImageRegionSplitter< VImageDimension >::Self

Standard class typedefs.

Definition at line 72 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension>

typedef Size< VImageDimension > itk::ImageRegionSplitter< VImageDimension >::SizeType

Size typedef support. A size is used to define region bounds.

Definition at line 94 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension>

typedef SizeType::SizeValueType itk::ImageRegionSplitter< VImageDimension >::SizeValueType

Definition at line 95 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension>

typedef ImageRegionSplitterBase itk::ImageRegionSplitter< VImageDimension >::Superclass

Definition at line 73 of file itkImageRegionSplitter.h.

Constructor & Destructor Documentation

template<unsigned int VImageDimension>

itk::ImageRegionSplitter< VImageDimension >::ImageRegionSplitter ( )

inlineprotected

Definition at line 117 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension>

itk::ImageRegionSplitter< VImageDimension >::~ImageRegionSplitter ( )

inlineprotected

Definition at line 118 of file itkImageRegionSplitter.h.

Member Function Documentation

template<unsigned int VImageDimension>

virtual::itk::LightObject::Pointer itk::ImageRegionSplitter< VImageDimension >::CreateAnother ( ) 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<unsigned int VImageDimension>

static unsigned int itk::ImageRegionSplitter< VImageDimension >::GetImageDimension ( )

inlinestatic

Dimension of the image available at run time.

Definition at line 87 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension>

virtual const char* itk::ImageRegionSplitter< VImageDimension >::GetNameOfClass ( ) const

virtual

Run-time type information (and related methods).

Reimplemented from itk::ImageRegionSplitterBase.

Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >.

template<unsigned int VImageDimension>

virtual unsigned int itk::ImageRegionSplitter< VImageDimension >::GetNumberOfSplits	(	const RegionType &	region,
		unsigned int	requestedNumber
	)

virtual

How many pieces can the specifed region be split? A given region cannot always be divided into the requested number of pieces. For instance, if the numberOfPieces exceeds the number of pixels along a certain dimensions, then some splits will not be possible. This method returns a number less than or equal to the requested number of pieces.

Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >.

template<unsigned int VImageDimension>

virtual unsigned int itk::ImageRegionSplitter< VImageDimension >::GetNumberOfSplitsInternal	(	unsigned	dim,
		const IndexValueType	regionIndex[],
		const SizeValueType	regionSize[],
		unsigned int	requestedNumber
	)		const

inlineoverrideprotectedvirtual

Templetless method to compute the number of possible splits for any number of dimensions.

Implements itk::ImageRegionSplitterBase.

Definition at line 120 of file itkImageRegionSplitter.h.

References itk::ImageRegionSplitterBase::GetNumberOfSplits(), itk::Index< VIndexDimension >::SetIndex(), and itk::Size< VDimension >::SetSize().

template<unsigned int VImageDimension>

virtual RegionType itk::ImageRegionSplitter< VImageDimension >::GetSplit	(	unsigned int	i,
		unsigned int	numberOfPieces,
		const RegionType &	region
	)

virtual

Get a region definition that represents the ith piece a specified region. The "numberOfPieces" must be equal to what GetNumberOfSplits() returns.

Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >.

template<unsigned int VImageDimension>

virtual unsigned int itk::ImageRegionSplitter< VImageDimension >::GetSplitInternal	(	unsigned int	dim,
		unsigned int	i,
		unsigned int	numberOfPieces,
		IndexValueType	regionIndex[],
		SizeValueType	regionSize[]
	)		const

inlineoverrideprotectedvirtual

Templetless method to compute an actual split for any number of dimensions. dim is the size of the regionIndex and regionSize arrays.

Implements itk::ImageRegionSplitterBase.

Definition at line 138 of file itkImageRegionSplitter.h.

References itk::ImageRegion< VImageDimension >::GetIndex(), itk::ImageRegion< VImageDimension >::GetSize(), itk::ImageRegionSplitterBase::GetSplit(), itk::Index< VIndexDimension >::SetIndex(), and itk::Size< VDimension >::SetSize().

template<unsigned int VImageDimension>

static Pointer itk::ImageRegionSplitter< VImageDimension >::New ( )

static

Method for creation through the object factory.

template<unsigned int VImageDimension>

virtual void itk::ImageRegionSplitter< VImageDimension >::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::ImageRegionSplitterBase.

Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >.