#include <itkImageRandomNonRepeatingConstIteratorWithIndex.h>

Inheritance diagram for itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >:

Collaboration diagram for itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >:

Detailed Description

template<typename TImage>
class itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >

A multi-dimensional image iterator that visits a random set of pixels within an image region. All pixels in the image will be visited before any are repeated. A priority image may be passed to the interator which will cause it to select certain sets of pixels (those with lower priority values) before others.

This class was contributed by Rupert Brooks, McGill Centre for Intelligent Machines, Montreal, Canada. It is heavily based on the ImageRandomIterator class.

ImageRandomNonRepeatingConstIteratorWithIndex is a multi-dimensional iterator class that is templated over image type. ImageRandomNonRepeatingConstIteratorWithIndex is constrained to walk only within the specified region. When first instantiated, it creates (and stores) a random permutation of the image pixels. It then visits each pixel in the order specified by the permutation. Thus, iterator++ followed by iterator– will end up leaving the iterator pointing at the same pixel. Furthermore, iterating from beginning to end will cover each pixel in the region exactly once.

This iterator can be passed an image the same size as the region, which specifies a priority for the pixels. Within areas of this priority image that have the same value, the pixel selection will be random. Otherwise the pixel selection will be in the order of the priority image. In the extreme, this allows the order of the pixel selection to be completely specified.

ImageRandomNonRepeatingConstIteratorWithIndex assumes a particular layout of the image data. The is arranged in a 1D array as if it were [][][][slice][row][col] with Index[0] = col, Index[1] = row, Index[2] = slice, etc.

MORE INFORMATION: For a complete description of the ITK Image Iterators and their API, please see the Iterators chapter in the ITK Software Guide. The ITK Software Guide is available in print and as a free .pdf download from http://www.itk.org.

Author: Rupert Brooks, McGill Centre for Intelligent Machines. Canada

See Also: ImageConstIterator; ConditionalConstIterator; ConstNeighborhoodIterator; ConstShapedNeighborhoodIterator; ConstSliceIterator; CorrespondenceDataStructureIterator; FloodFilledFunctionConditionalConstIterator; FloodFilledImageFunctionConditionalConstIterator; FloodFilledImageFunctionConditionalIterator; FloodFilledSpatialFunctionConditionalConstIterator; FloodFilledSpatialFunctionConditionalIterator; ImageConstIterator; ImageConstIteratorWithIndex; ImageIterator; ImageIteratorWithIndex; ImageLinearConstIteratorWithIndex; ImageLinearIteratorWithIndex; ImageRandomNonRepeatingConstIteratorWithIndex; ImageRandomIteratorWithIndex; ImageRegionConstIterator; ImageRegionConstIteratorWithIndex; ImageRegionExclusionConstIteratorWithIndex; ImageRegionExclusionIteratorWithIndex; ImageRegionIterator; ImageRegionIteratorWithIndex; ImageRegionReverseConstIterator; ImageRegionReverseIterator; ImageReverseConstIterator; ImageReverseIterator; ImageSliceConstIteratorWithIndex; ImageSliceIteratorWithIndex; NeighborhoodIterator; PathConstIterator; PathIterator; ShapedNeighborhoodIterator; SliceIterator; ImageConstIteratorWithIndex

Wiki Examples:

All Examples

Randomly select pixels from a region of an image without replacement

Permute a sequence of indices

Definition at line 214 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

Public Types
typedef Superclass::AccessorType	AccessorType

typedef Superclass::ImageType	ImageType

typedef Superclass::IndexType	IndexType

typedef Superclass::IndexValueType	IndexValueType

typedef Superclass::InternalPixelType	InternalPixelType

typedef Superclass::OffsetType	OffsetType

typedef Superclass::OffsetValueType	OffsetValueType

typedef Superclass::PixelContainer	PixelContainer

typedef Superclass::PixelContainerPointer	PixelContainerPointer

typedef Superclass::PixelType	PixelType

typedef itk::Image < SizeValueType, itkGetStaticConstMacro(ImageDimension) >	PriorityImageType

typedef Superclass::RegionType	RegionType

typedef ImageRandomNonRepeatingConstIteratorWithIndex	Self

typedef Superclass::SizeType	SizeType

typedef Superclass::SizeValueType	SizeValueType

typedef ImageConstIteratorWithIndex < TImage >	Superclass

Public Types inherited from itk::ImageConstIteratorWithIndex< TImage >
typedef TImage::AccessorFunctorType	AccessorFunctorType

typedef TImage::AccessorType	AccessorType

typedef TImage	ImageType

typedef TImage::IndexType	IndexType

typedef IndexType::IndexValueType	IndexValueType

typedef TImage::InternalPixelType	InternalPixelType

typedef TImage::OffsetType	OffsetType

typedef OffsetType::OffsetValueType	OffsetValueType

typedef TImage::PixelContainer	PixelContainer

typedef PixelContainer::Pointer	PixelContainerPointer

typedef TImage::PixelType	PixelType

typedef TImage::RegionType	RegionType

typedef ImageConstIteratorWithIndex	Self

typedef TImage::SizeType	SizeType

typedef SizeType::SizeValueType	SizeValueType

Public Member Functions
SizeValueType	GetNumberOfSamples (void) const

	ImageRandomNonRepeatingConstIteratorWithIndex (const ImageType *ptr, const RegionType &region)

	ImageRandomNonRepeatingConstIteratorWithIndex (const ImageConstIteratorWithIndex< TImage > &it)

bool	IsAtBegin (void) const

bool	IsAtEnd (void) const

Self &	operator= (const Self &it)

void	ReinitializeSeed ()

void	ReinitializeSeed (int)

void	SetNumberOfSamples (SizeValueType number)

void	SetPriorityImage (const PriorityImageType *priorityImage)


	ImageRandomNonRepeatingConstIteratorWithIndex ()

	~ImageRandomNonRepeatingConstIteratorWithIndex ()


void	GoToBegin (void)


void	GoToEnd (void)


Self &	operator++ ()


Self &	operator-- ()

Public Member Functions inherited from itk::ImageConstIteratorWithIndex< TImage >
PixelType	Get (void) const

const IndexType &	GetIndex () const

const RegionType &	GetRegion () const

void	GoToBegin (void)

void	GoToReverseBegin (void)

	ImageConstIteratorWithIndex ()

	ImageConstIteratorWithIndex (const Self &it)

	ImageConstIteratorWithIndex (const TImage *ptr, const RegionType &region)

bool	IsAtEnd (void) const

bool	IsAtReverseEnd (void) const

	itkLegacyMacro (Self Begin(void) const)

	itkLegacyMacro (Self End(void) const)

bool	operator!= (const Self &it) const

bool	operator< (const Self &it) const

bool	operator<= (const Self &it) const

Self &	operator= (const Self &it)

bool	operator== (const Self &it) const

bool	operator> (const Self &it) const

bool	operator>= (const Self &it) const

bool	Remaining ()

const PixelType &	Value (void) const

virtual	~ImageConstIteratorWithIndex ()

void	SetIndex (const IndexType &ind)

Static Public Attributes
static const unsigned int	ImageDimension = TImage::ImageDimension

Static Public Attributes inherited from itk::ImageConstIteratorWithIndex< TImage >
static const unsigned int	ImageDimension = TImage::ImageDimension

Private Member Functions
void	UpdatePosition ()

Private Attributes
SizeValueType	m_NumberOfPixelsInRegion

SizeValueType	m_NumberOfSamplesDone

SizeValueType	m_NumberOfSamplesRequested

RandomPermutation *	m_Permutation

Additional Inherited Members
Static Public Member Functions inherited from itk::ImageConstIteratorWithIndex< TImage >
static unsigned int	GetImageDimension ()

Protected Attributes inherited from itk::ImageConstIteratorWithIndex< TImage >
const InternalPixelType *	m_Begin

IndexType	m_BeginIndex

const InternalPixelType *	m_End

IndexType	m_EndIndex

TImage::ConstWeakPointer	m_Image

OffsetValueType	m_OffsetTable [ImageDimension+1]

AccessorType	m_PixelAccessor

AccessorFunctorType	m_PixelAccessorFunctor

const InternalPixelType *	m_Position

IndexType	m_PositionIndex

RegionType	m_Region

bool	m_Remaining

Member Typedef Documentation

template<typename TImage>

typedef Superclass::AccessorType itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::AccessorType

Definition at line 231 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef Superclass::ImageType itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::ImageType

Definition at line 226 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef Superclass::IndexType itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::IndexType

Inherit types from the superclass

Definition at line 222 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef Superclass::IndexValueType itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::IndexValueType

Definition at line 232 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef Superclass::InternalPixelType itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::InternalPixelType

Definition at line 229 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef Superclass::OffsetType itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::OffsetType

Definition at line 224 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef Superclass::OffsetValueType itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::OffsetValueType

Definition at line 233 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef Superclass::PixelContainer itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::PixelContainer

Definition at line 227 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef Superclass::PixelContainerPointer itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::PixelContainerPointer

Definition at line 228 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef Superclass::PixelType itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::PixelType

Definition at line 230 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef itk::Image< SizeValueType, itkGetStaticConstMacro(ImageDimension) > itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::PriorityImageType

Image with priorities

Definition at line 299 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef Superclass::RegionType itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::RegionType

Definition at line 225 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef ImageRandomNonRepeatingConstIteratorWithIndex itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::Self

Standard class typedefs.

Definition at line 218 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef Superclass::SizeType itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::SizeType

Definition at line 223 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef Superclass::SizeValueType itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::SizeValueType

Definition at line 234 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

typedef ImageConstIteratorWithIndex< TImage > itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::Superclass

Definition at line 219 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

Constructor & Destructor Documentation

template<typename TImage>

itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::ImageRandomNonRepeatingConstIteratorWithIndex ( )

Default constructor. Needed since we provide a cast constructor.

template<typename TImage>

itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::~ImageRandomNonRepeatingConstIteratorWithIndex ( )

inline

Default constructor. Needed since we provide a cast constructor.

Definition at line 238 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::ImageRandomNonRepeatingConstIteratorWithIndex	(	const ImageType *	ptr,
		const RegionType &	region
	)

Constructor establishes an iterator to walk a particular image and a particular region of that image.

template<typename TImage>

itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::ImageRandomNonRepeatingConstIteratorWithIndex ( const ImageConstIteratorWithIndex< TImage > & it )

inline

Constructor that can be used to cast from an ImageIterator to an ImageRandomNonRepeatingConstIteratorWithIndex. Many routines return an ImageIterator but for a particular task, you may want an ImageRandomNonRepeatingConstIteratorWithIndex. Rather than provide overloaded APIs that return different types of Iterators, itk returns ImageIterators and uses constructors to cast from an ImageIterator to a ImageRandomNonRepeatingConstIteratorWithIndex.

Definition at line 257 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

References NULL, and itk::ImageConstIteratorWithIndex< TImage >::operator=().

Member Function Documentation

template<typename TImage>

SizeValueType itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::GetNumberOfSamples ( void ) const

template<typename TImage>

void itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::GoToBegin ( void )

inline

Move an iterator to the beginning of the region.

Definition at line 268 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

void itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::GoToEnd ( void )

inline

Move an iterator to one position past the End of the region.

Definition at line 276 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

bool itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::IsAtBegin ( void ) const

inline

Is the iterator at the beginning of the region?

Definition at line 284 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

bool itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::IsAtEnd ( void ) const

inline

Is the iterator at the end of the region?

Definition at line 290 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

Self& itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::operator++ ( )

inline

Increment (prefix) the selected dimension. No bounds checking is performed.

See Also: GetIndex; operator–

Definition at line 310 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

Self& itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::operator-- ( )

inline

Decrement (prefix) the selected dimension. No bounds checking is performed.

See Also: GetIndex; operator++

Definition at line 320 of file itkImageRandomNonRepeatingConstIteratorWithIndex.h.

template<typename TImage>

Self& itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::operator= ( const Self & it )

operator= is provided to deep copy m_Permutation.

template<typename TImage>

void itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::ReinitializeSeed ( )

Reinitialize the seed of the random number generator

template<typename TImage>

void itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::ReinitializeSeed ( int )

Reinitialize the seed of the random number generator with a specific value

template<typename TImage>

void itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::SetNumberOfSamples ( SizeValueType number )

Set/Get number of random samples to get from the image region

template<typename TImage>

void itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::SetPriorityImage ( const PriorityImageType * priorityImage )

Set the priority image. The priority image controls the order of the random selection. Pixels of the same priority will be ordered randomly, but pixels of lower priority value will be selected first.

template<typename TImage>

void itk::ImageRandomNonRepeatingConstIteratorWithIndex< TImage >::UpdatePosition ( )

private