ITK  5.1.0
Insight Segmentation and Registration Toolkit
Public Types | Public Member Functions | Private Attributes | List of all members
itk::ImageRegionExclusionConstIteratorWithIndex< TImage > Class Template Reference

#include <itkImageRegionExclusionConstIteratorWithIndex.h>

+ Inheritance diagram for itk::ImageRegionExclusionConstIteratorWithIndex< TImage >:
+ Collaboration diagram for itk::ImageRegionExclusionConstIteratorWithIndex< TImage >:

Public Types

using AccessorType = typename Superclass::AccessorType
 
using ImageType = typename Superclass::ImageType
 
using IndexType = typename Superclass::IndexType
 
using InternalPixelType = typename Superclass::InternalPixelType
 
using OffsetType = typename Superclass::OffsetType
 
using PixelContainer = typename Superclass::PixelContainer
 
using PixelContainerPointer = typename Superclass::PixelContainerPointer
 
using PixelType = typename Superclass::PixelType
 
using RegionType = typename Superclass::RegionType
 
using Self = ImageRegionExclusionConstIteratorWithIndex
 
using SizeType = typename Superclass::SizeType
 
using Superclass = ImageRegionConstIteratorWithIndex< TImage >
 
- Public Types inherited from itk::ImageRegionConstIteratorWithIndex< TImage >
using AccessorType = typename Superclass::AccessorType
 
using ImageType = typename Superclass::ImageType
 
using IndexType = typename Superclass::IndexType
 
using InternalPixelType = typename Superclass::InternalPixelType
 
using OffsetType = typename Superclass::OffsetType
 
using PixelContainer = typename Superclass::PixelContainer
 
using PixelContainerPointer = typename Superclass::PixelContainerPointer
 
using PixelType = typename Superclass::PixelType
 
using RegionType = typename Superclass::RegionType
 
using Self = ImageRegionConstIteratorWithIndex
 
using SizeType = typename Superclass::SizeType
 
using Superclass = ImageConstIteratorWithIndex< TImage >
 
- Public Types inherited from itk::ImageConstIteratorWithIndex< TImage >
using AccessorFunctorType = typename TImage::AccessorFunctorType
 
using AccessorType = typename TImage::AccessorType
 
using ImageType = TImage
 
using IndexType = typename TImage::IndexType
 
using IndexValueType = typename IndexType::IndexValueType
 
using InternalPixelType = typename TImage::InternalPixelType
 
using OffsetType = typename TImage::OffsetType
 
using OffsetValueType = typename OffsetType::OffsetValueType
 
using PixelContainer = typename TImage::PixelContainer
 
using PixelContainerPointer = typename PixelContainer::Pointer
 
using PixelType = typename TImage::PixelType
 
using RegionType = typename TImage::RegionType
 
using Self = ImageConstIteratorWithIndex
 
using SizeType = typename TImage::SizeType
 
using SizeValueType = typename SizeType::SizeValueType
 

Public Member Functions

void GoToBegin ()
 
void GoToReverseBegin ()
 
 ImageRegionExclusionConstIteratorWithIndex ()=default
 
 ImageRegionExclusionConstIteratorWithIndex (const ImageType *ptr, const RegionType &region)
 
 ImageRegionExclusionConstIteratorWithIndex (const Superclass &it)
 
Selfoperator++ ()
 
Selfoperator-- ()
 
void SetExclusionRegion (const RegionType &region)
 
void SetExclusionRegionToInsetRegion ()
 
- Public Member Functions inherited from itk::ImageRegionConstIteratorWithIndex< TImage >
 ImageRegionConstIteratorWithIndex ()
 
 ImageRegionConstIteratorWithIndex (const TImage *ptr, const RegionType &region)
 
 ImageRegionConstIteratorWithIndex (const ImageConstIteratorWithIndex< TImage > &it)
 
Selfoperator++ ()
 
Selfoperator-- ()
 
- Public Member Functions inherited from itk::ImageConstIteratorWithIndex< TImage >
PixelType Get () const
 
const IndexTypeGetIndex () const
 
const RegionTypeGetRegion () const
 
void GoToBegin ()
 
void GoToReverseBegin ()
 
 ImageConstIteratorWithIndex ()
 
 ImageConstIteratorWithIndex (const Self &it)
 
 ImageConstIteratorWithIndex (const TImage *ptr, const RegionType &region)
 
bool IsAtEnd () const
 
bool IsAtReverseEnd () const
 
bool operator!= (const Self &it) const
 
bool operator< (const Self &it) const
 
bool operator<= (const Self &it) const
 
Selfoperator= (const Self &it)
 
bool operator== (const Self &it) const
 
bool operator> (const Self &it) const
 
bool operator>= (const Self &it) const
 
bool Remaining ()
 
const PixelTypeValue () const
 
virtual ~ImageConstIteratorWithIndex ()=default
 
void SetIndex (const IndexType &ind)
 

Private Attributes

IndexType m_ExclusionBegin
 
IndexType m_ExclusionEnd
 
RegionType m_ExclusionRegion
 

Additional Inherited Members

- Static Public Member Functions inherited from itk::ImageConstIteratorWithIndex< TImage >
static unsigned int GetImageDimension ()
 
- Static Public Attributes inherited from itk::ImageConstIteratorWithIndex< TImage >
static constexpr unsigned int ImageDimension = TImage::ImageDimension
 
- Protected Attributes inherited from itk::ImageConstIteratorWithIndex< TImage >
const InternalPixelTypem_Begin
 
IndexType m_BeginIndex
 
const InternalPixelTypem_End
 
IndexType m_EndIndex
 
TImage::ConstWeakPointer m_Image
 
OffsetValueType m_OffsetTable [ImageDimension+1]
 
AccessorType m_PixelAccessor
 
AccessorFunctorType m_PixelAccessorFunctor
 
const InternalPixelTypem_Position
 
IndexType m_PositionIndex
 
RegionType m_Region
 
bool m_Remaining
 

Detailed Description

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

A multi-dimensional image iterator that walks an image region, excluding a second region that may partially or completely overlap the first, with read-only access to pixels.

ImageRegionExclusionConstIteratorWithIndex is a class templated over the image type that represents a multi-dimensional iterator. The exclusion region is set after construction. By default the exclusion region is empty and the iterator will behave as the itk::ImageRegionConstIteratorWithIndex with a penalty in performance due to internal bounds checking. There are no restrictions on valid exclusion regions.

As with other ITK image iterators, ImageRegionExclusionConstIteratorWithIndex requires that more information be specified before the iterator can be used than conventional iterators. Whereas the std::vector::iterator from the STL only needs to be passed a pointer to establish the iterator, the multi-dimensional image iterator needs a pointer, the size of the buffer, the size of the region, the start index of the buffer, and the start index of the region. To gain access to this information, ImageRegionExclusionConstIteratorWithIndex holds a reference to the image over which it is traversing.

ImageRegionExclusionConstIteratorWithIndex 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.

The operator++ method provides a simple syntax for walking around a region of a multidimensional image. operator++ iterates across a row, constraining the movement to within a region of image. When the iterator reaches the boundary of the region along a row, the iterator automatically wraps to the next row, starting at the first pixel in the row that is part of the region. This allows for simple processing loops of the form:

IteratorType it( image, image->GetRequestedRegion() );
it.SetExclusionRegion( exclusionRegion );
it.GoToBegin();
while( ! it.IsAtEnd() )
{
it.Set( 100.0 + it.Get() );
++it;
}

It also can be used for walking in the reverse direction like

IteratorType it( image, image->GetRequestedRegion() );
it.SetExclusionRegion( exclusionRegion );
it.GoToEnd();
while( !it.IsAtBegin() )
{
it.Set( 100.0 );
--it;
}
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 https://www.itk.org.
See also
ImageConstIterator
ConditionalConstIterator
ConstNeighborhoodIterator
ConstShapedNeighborhoodIterator
ConstSliceIterator
CorrespondenceDataStructureIterator
FloodFilledFunctionConditionalConstIterator
FloodFilledImageFunctionConditionalConstIterator
FloodFilledImageFunctionConditionalIterator
FloodFilledSpatialFunctionConditionalConstIterator
FloodFilledSpatialFunctionConditionalIterator
ImageConstIterator
ImageConstIteratorWithIndex
ImageIterator
ImageIteratorWithIndex
ImageLinearConstIteratorWithIndex
ImageLinearIteratorWithIndex
ImageRandomConstIteratorWithIndex
ImageRandomIteratorWithIndex
ImageRegionConstIterator
ImageRegionConstIteratorWithIndex
ImageRegionExclusionConstIteratorWithIndex
ImageRegionExclusionIteratorWithIndex
ImageRegionIterator
ImageRegionIteratorWithIndex
ImageRegionReverseConstIterator
ImageRegionReverseIterator
ImageReverseConstIterator
ImageReverseIterator
ImageSliceConstIteratorWithIndex
ImageSliceIteratorWithIndex
NeighborhoodIterator
PathConstIterator
PathIterator
ShapedNeighborhoodIterator
SliceIterator
ImageConstIteratorWithIndex
ITK Sphinx Examples:
\li All ITK Sphinx Examples
Examples
SphinxExamples/src/Core/Common/IterateOverSpecificRegion/Code.cxx.

Definition at line 131 of file itkImageRegionExclusionConstIteratorWithIndex.h.

Member Typedef Documentation

◆ AccessorType

template<typename TImage>
using itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::AccessorType = typename Superclass::AccessorType

◆ ImageType

template<typename TImage>
using itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::ImageType = typename Superclass::ImageType

◆ IndexType

template<typename TImage>
using itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::IndexType = typename Superclass::IndexType

Types inherited from the Superclass

Definition at line 140 of file itkImageRegionExclusionConstIteratorWithIndex.h.

◆ InternalPixelType

◆ OffsetType

template<typename TImage>
using itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::OffsetType = typename Superclass::OffsetType

◆ PixelContainer

template<typename TImage>
using itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::PixelContainer = typename Superclass::PixelContainer

◆ PixelContainerPointer

◆ PixelType

template<typename TImage>
using itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::PixelType = typename Superclass::PixelType

◆ RegionType

template<typename TImage>
using itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::RegionType = typename Superclass::RegionType

◆ Self

Standard class type aliases.

Definition at line 136 of file itkImageRegionExclusionConstIteratorWithIndex.h.

◆ SizeType

template<typename TImage>
using itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::SizeType = typename Superclass::SizeType

◆ Superclass

Constructor & Destructor Documentation

◆ ImageRegionExclusionConstIteratorWithIndex() [1/3]

Default constructor. Needed since we provide a cast constructor.

◆ ImageRegionExclusionConstIteratorWithIndex() [2/3]

template<typename TImage>
itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::ImageRegionExclusionConstIteratorWithIndex ( const ImageType ptr,
const RegionType region 
)

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

◆ ImageRegionExclusionConstIteratorWithIndex() [3/3]

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

Member Function Documentation

◆ GoToBegin()

template<typename TImage>
void itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::GoToBegin ( )

Move an iterator to the beginning of the non-excluded region.

◆ GoToReverseBegin()

template<typename TImage>
void itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::GoToReverseBegin ( )

Move an iterator to the End of the region.

◆ operator++()

template<typename TImage>
Self& itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::operator++ ( )

Increment (prefix) the fastest moving dimension of the iterator's index. This operator will constrain the iterator within the region (i.e. the iterator will automatically wrap from the end of the row of the region to the beginning of the next row of the region) up until the iterator tries to moves past the last pixel of the region. Here, the iterator will be set to be one pixel past the end of the region.

See also
operator++(int)

◆ operator--()

template<typename TImage>
Self& itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::operator-- ( )

Decrement (prefix) the fastest moving dimension of the iterator's index. This operator will constrain the iterator within the region (i.e. the iterator will automatically wrap from the beginning of the row of the region to the end of the next row of the region) up until the iterator tries to moves past the first pixel of the region. Here, the iterator will be set to be one pixel past the beginning of the region.

See also
operator--(int)

◆ SetExclusionRegion()

template<typename TImage>
void itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::SetExclusionRegion ( const RegionType region)

Method to define the Exclusion region. The iterator will skip pixels inside this region.

Warning
The exclusion region must be completly contained inside the normal region used to construct the iterator. A border of at least one pixel should exist between the normal region and the exclusion region.
Examples
SphinxExamples/src/Core/Common/IterateOverSpecificRegion/Code.cxx.

◆ SetExclusionRegionToInsetRegion()

template<typename TImage>
void itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::SetExclusionRegionToInsetRegion ( )

Set the exclusion region to be inset one pixel in from the region the iterator walks. This configures the iterator to only walk the pixels on the boundary of the region.

Member Data Documentation

◆ m_ExclusionBegin

template<typename TImage>
IndexType itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::m_ExclusionBegin
private

◆ m_ExclusionEnd

template<typename TImage>
IndexType itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::m_ExclusionEnd
private

◆ m_ExclusionRegion

template<typename TImage>
RegionType itk::ImageRegionExclusionConstIteratorWithIndex< TImage >::m_ExclusionRegion
private

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