itk::ImageRegionSplitter< VImageDimension > Class Template Reference
[ITK System Objects, Data Processing Objects]

Divide a region into several pieces. More...

#include <itkImageRegionSplitter.h>

Inheritance diagram for itk::ImageRegionSplitter< VImageDimension >:

[legend]Collaboration diagram for itk::ImageRegionSplitter< VImageDimension >:

[legend]List of all members.

Public Types
typedef ImageRegionSplitter	Self
typedef Object	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef Index< VImageDimension >	IndexType
typedef IndexType::IndexValueType	IndexValueType
typedef Size< VImageDimension >	SizeType
typedef SizeType::SizeValueType	SizeValueType
typedef ImageRegion< VImageDimension >	RegionType
Public Member Functions
virtual const char *	GetClassName () const
	itkStaticConstMacro (ImageDimension, unsigned int, VImageDimension)
virtual unsigned int	GetNumberOfSplits (const RegionType &region, unsigned int requestedNumber)
virtual RegionType	GetSplit (unsigned int i, unsigned int numberOfPieces, const RegionType &region)
Static Public Member Functions
Pointer	New ()
unsigned int	GetImageDimension ()
Protected Member Functions
	ImageRegionSplitter ()
	~ImageRegionSplitter ()
void	PrintSelf (std::ostream &os, Indent indent) const

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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 a region can support will 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.

See also:

ImageRegionMultidimensionalSplitter

Definition at line 66 of file itkImageRegionSplitter.h.

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Member Typedef Documentation

template<unsigned int VImageDimension> typedef SmartPointer<const Self> itk::ImageRegionSplitter< VImageDimension >::ConstPointer

Reimplemented from itk::Object. Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >. Definition at line 73 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. Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >. Definition at line 89 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension> typedef IndexType::IndexValueType itk::ImageRegionSplitter< VImageDimension >::IndexValueType

Definition at line 90 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension> typedef SmartPointer<Self> itk::ImageRegionSplitter< VImageDimension >::Pointer

Reimplemented from itk::Object. Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >. Definition at line 72 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension> typedef ImageRegion<VImageDimension> itk::ImageRegionSplitter< VImageDimension >::RegionType

Region typedef support. Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >. Definition at line 97 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension> typedef ImageRegionSplitter itk::ImageRegionSplitter< VImageDimension >::Self

Standard class typedefs. Reimplemented from itk::Object. Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >. Definition at line 70 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. Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >. Definition at line 93 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension> typedef SizeType::SizeValueType itk::ImageRegionSplitter< VImageDimension >::SizeValueType

Definition at line 94 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension> typedef Object itk::ImageRegionSplitter< VImageDimension >::Superclass

Reimplemented from itk::Object. Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >. Definition at line 71 of file itkImageRegionSplitter.h.

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Constructor & Destructor Documentation

template<unsigned int VImageDimension> itk::ImageRegionSplitter< VImageDimension >::ImageRegionSplitter (   )  [inline, protected]

Definition at line 115 of file itkImageRegionSplitter.h.

template<unsigned int VImageDimension> itk::ImageRegionSplitter< VImageDimension >::~ImageRegionSplitter (   )  [inline, protected]

Definition at line 116 of file itkImageRegionSplitter.h.

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Member Function Documentation

template<unsigned int VImageDimension> virtual const char* itk::ImageRegionSplitter< VImageDimension >::GetClassName (   )  const [virtual]

Run-time type information (and related methods). Reimplemented from itk::Object. Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >.

template<unsigned int VImageDimension> unsigned int itk::ImageRegionSplitter< VImageDimension >::GetImageDimension (   )  [inline, static]

Dimension of the image available at run time. Definition at line 85 of file itkImageRegionSplitter.h.

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 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" specified should be less than or equal to what GetNumberOfSplits() returns. Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >.

template<unsigned int VImageDimension> itk::ImageRegionSplitter< VImageDimension >::itkStaticConstMacro (  ImageDimension  , unsigned  int, VImageDimension  )

Dimension of the image available at compile time. Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >.

template<unsigned int VImageDimension> Pointer itk::ImageRegionSplitter< VImageDimension >::New (   )  [static]

Method for creation through the object factory. Reimplemented from itk::Object. Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >.

template<unsigned int VImageDimension> void itk::ImageRegionSplitter< VImageDimension >::PrintSelf (  std::ostream &  os, Indent  indent )  const [protected, virtual]

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::Object. Reimplemented in itk::ImageRegionMultidimensionalSplitter< VImageDimension >.

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

• itkImageRegionSplitter.h

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