ITK  5.0.0
Insight Segmentation and Registration Toolkit
Public Types | Public Member Functions | Static Public Attributes | Protected Member Functions | Protected Attributes | List of all members
itk::ImageFunction< TInputImage, TOutput, TCoordRep > Class Template Referenceabstract
Image Functions | Module ITKImageFunction

#include <itkImageFunction.h>

+ Inheritance diagram for itk::ImageFunction< TInputImage, TOutput, TCoordRep >:
+ Collaboration diagram for itk::ImageFunction< TInputImage, TOutput, TCoordRep >:

Detailed Description

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
class itk::ImageFunction< TInputImage, TOutput, TCoordRep >

Evaluates a function of an image at specified position.

ImageFunction is a baseclass for all objects that evaluates a function of an image at index, continuous index or point. This class is templated over the input image type, the type of the function output and the coordinate representation type (e.g. float or double).

The input image is set via method SetInputImage(). Methods Evaluate, EvaluateAtIndex and EvaluateAtContinuousIndex respectively evaluates the function at an geometric point, image index and continuous image index.

Warning
Image BufferedRegion information is cached during in SetInputImage( image ). If the image BufferedRegion has changed one must call SetInputImage( image ) again to update the cache to the current values.
See Also
Point
Index
ContinuousIndex

Definition at line 58 of file itkImageFunction.h.

Public Types

using ConstPointer = SmartPointer< const Self >
 
using ContinuousIndexType = ContinuousIndex< TCoordRep, Self::ImageDimension >
 
using CoordRepType = TCoordRep
 
using IndexType = typename InputImageType::IndexType
 
using IndexValueType = typename InputImageType::IndexValueType
 
using InputImageConstPointer = typename InputImageType::ConstPointer
 
using InputImageType = TInputImage
 
using InputPixelType = typename InputImageType::PixelType
 
using OutputType = TOutput
 
using Pointer = SmartPointer< Self >
 
using PointType = Point< TCoordRep, Self::ImageDimension >
 
using Self = ImageFunction
 
using Superclass = FunctionBase< Point< TCoordRep, Self::ImageDimension >, TOutput >
 
- Public Types inherited from itk::FunctionBase< Point< TCoordRep, TInputImage::ImageDimension >, TOutput >
using ConstPointer = SmartPointer< const Self >
 
using InputType = Point< TCoordRep, TInputImage::ImageDimension >
 
using OutputType = TOutput
 
using Pointer = SmartPointer< Self >
 
using Self = FunctionBase
 
using Superclass = Object
 
- Public Types inherited from itk::Object
using ConstPointer = SmartPointer< const Self >
 
using Pointer = SmartPointer< Self >
 
using Self = Object
 
using Superclass = LightObject
 
- Public Types inherited from itk::LightObject
using ConstPointer = SmartPointer< const Self >
 
using Pointer = SmartPointer< Self >
 
using Self = LightObject
 

Public Member Functions

void ConvertContinuousIndexToNearestIndex (const ContinuousIndexType &cindex, IndexType &index) const
 
void ConvertPointToContinuousIndex (const PointType &point, ContinuousIndexType &cindex) const
 
void ConvertPointToNearestIndex (const PointType &point, IndexType &index) const
 
TOutput Evaluate (const PointType &point) const override=0
 
virtual TOutput EvaluateAtContinuousIndex (const ContinuousIndexType &index) const =0
 
virtual TOutput EvaluateAtIndex (const IndexType &index) const =0
 
virtual const ContinuousIndexType & GetEndContinuousIndex () const
 
virtual const IndexType & GetEndIndex () const
 
const InputImageType * GetInputImage () const
 
virtual const char * GetNameOfClass () const
 
virtual const ContinuousIndexType & GetStartContinuousIndex () const
 
virtual const IndexType & GetStartIndex () const
 
virtual void SetInputImage (const InputImageType *ptr)
 
virtual bool IsInsideBuffer (const IndexType &index) const
 
virtual bool IsInsideBuffer (const ContinuousIndexType &index) const
 
virtual bool IsInsideBuffer (const PointType &point) const
 
- Public Member Functions inherited from itk::Object
unsigned long AddObserver (const EventObject &event, Command *)
 
unsigned long AddObserver (const EventObject &event, Command *) const
 
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
 
void Register () const override
 
void RemoveAllObservers ()
 
void RemoveObserver (unsigned long tag)
 
void SetDebug (bool debugFlag) const
 
void SetReferenceCount (int) override
 
void UnRegister () const noexceptoverride
 
void SetMetaDataDictionary (const MetaDataDictionary &rhs)
 
void SetMetaDataDictionary (MetaDataDictionary &&rrhs)
 
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 constexpr unsigned int ImageDimension = TInputImage::ImageDimension
 

Protected Member Functions

 ImageFunction ()
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
 ~ImageFunction () override=default
 
- Protected Member Functions inherited from itk::FunctionBase< Point< TCoordRep, TInputImage::ImageDimension >, TOutput >
 FunctionBase ()=default
 
 ~FunctionBase () override=default
 
- Protected Member Functions inherited from itk::Object
 Object ()
 
bool PrintObservers (std::ostream &os, Indent indent) const
 
virtual void SetTimeStamp (const TimeStamp &time)
 
 ~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 ()
 

Protected Attributes

ContinuousIndexType m_EndContinuousIndex
 
IndexType m_EndIndex
 
InputImageConstPointer m_Image
 
ContinuousIndexType m_StartContinuousIndex
 
IndexType m_StartIndex
 
- Protected Attributes inherited from itk::LightObject
std::atomic< int > m_ReferenceCount
 

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 ()
 

Member Typedef Documentation

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
using itk::ImageFunction< TInputImage, TOutput, TCoordRep >::ConstPointer = SmartPointer< const Self >

Definition at line 76 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
using itk::ImageFunction< TInputImage, TOutput, TCoordRep >::ContinuousIndexType = ContinuousIndex< TCoordRep, Self::ImageDimension >

ContinuousIndex Type.

Definition at line 102 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
using itk::ImageFunction< TInputImage, TOutput, TCoordRep >::CoordRepType = TCoordRep

CoordRepType type alias support

Definition at line 94 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
using itk::ImageFunction< TInputImage, TOutput, TCoordRep >::IndexType = typename InputImageType::IndexType

Index Type.

Definition at line 97 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
using itk::ImageFunction< TInputImage, TOutput, TCoordRep >::IndexValueType = typename InputImageType::IndexValueType

Definition at line 98 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
using itk::ImageFunction< TInputImage, TOutput, TCoordRep >::InputImageConstPointer = typename InputImageType::ConstPointer

InputImagePointer type alias support

Definition at line 88 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
using itk::ImageFunction< TInputImage, TOutput, TCoordRep >::InputImageType = TInputImage

InputImageType type alias support

Definition at line 82 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
using itk::ImageFunction< TInputImage, TOutput, TCoordRep >::InputPixelType = typename InputImageType::PixelType

InputPixel type alias support

Definition at line 85 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
using itk::ImageFunction< TInputImage, TOutput, TCoordRep >::OutputType = TOutput

OutputType type alias support

Definition at line 91 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
using itk::ImageFunction< TInputImage, TOutput, TCoordRep >::Pointer = SmartPointer< Self >

Definition at line 75 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
using itk::ImageFunction< TInputImage, TOutput, TCoordRep >::PointType = Point< TCoordRep, Self::ImageDimension >

Point Type.

Definition at line 105 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
using itk::ImageFunction< TInputImage, TOutput, TCoordRep >::Self = ImageFunction

Standard class type aliases.

Definition at line 68 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
using itk::ImageFunction< TInputImage, TOutput, TCoordRep >::Superclass = FunctionBase< Point< TCoordRep, Self::ImageDimension >, TOutput >

Definition at line 73 of file itkImageFunction.h.

Constructor & Destructor Documentation

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
itk::ImageFunction< TInputImage, TOutput, TCoordRep >::ImageFunction ( )
protected
template<typename TInputImage, typename TOutput, typename TCoordRep = float>
itk::ImageFunction< TInputImage, TOutput, TCoordRep >::~ImageFunction ( )
overrideprotecteddefault

Member Function Documentation

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
void itk::ImageFunction< TInputImage, TOutput, TCoordRep >::ConvertContinuousIndexToNearestIndex ( const ContinuousIndexType &  cindex,
IndexType &  index 
) const
inline

Convert continuous index to nearest index.

Definition at line 204 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
void itk::ImageFunction< TInputImage, TOutput, TCoordRep >::ConvertPointToContinuousIndex ( const PointType &  point,
ContinuousIndexType &  cindex 
) const
inline

Convert point to continuous index

Definition at line 197 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
void itk::ImageFunction< TInputImage, TOutput, TCoordRep >::ConvertPointToNearestIndex ( const PointType &  point,
IndexType &  index 
) const
inline

Convert point to nearest index.

Definition at line 187 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
TOutput itk::ImageFunction< TInputImage, TOutput, TCoordRep >::Evaluate ( const PointType &  point) const
overridepure virtual

Evaluate the function at specified Point position. Subclasses must provide this method.

Implements itk::FunctionBase< Point< TCoordRep, TInputImage::ImageDimension >, TOutput >.

Implemented in itk::InterpolateImageFunction< TImageType, TCoordRep >.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
virtual TOutput itk::ImageFunction< TInputImage, TOutput, TCoordRep >::EvaluateAtContinuousIndex ( const ContinuousIndexType &  index) const
pure virtual

Evaluate the function at specified ContinuousIndex position. Subclasses must provide this method.

Implemented in itk::InterpolateImageFunction< TImageType, TCoordRep >.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
virtual TOutput itk::ImageFunction< TInputImage, TOutput, TCoordRep >::EvaluateAtIndex ( const IndexType &  index) const
pure virtual

Evaluate the function at specified Index position. Subclasses must provide this method.

Implemented in itk::BSplineControlPointImageFunction< TInputImage, TCoordRep >, itk::InterpolateImageFunction< TImageType, TCoordRep >, and itk::GaussianDerivativeImageFunction< TInputImage, TOutput >.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
virtual const ContinuousIndexType& itk::ImageFunction< TInputImage, TOutput, TCoordRep >::GetEndContinuousIndex ( ) const
virtual
template<typename TInputImage, typename TOutput, typename TCoordRep = float>
virtual const IndexType& itk::ImageFunction< TInputImage, TOutput, TCoordRep >::GetEndIndex ( ) const
virtual
template<typename TInputImage, typename TOutput, typename TCoordRep = float>
const InputImageType* itk::ImageFunction< TInputImage, TOutput, TCoordRep >::GetInputImage ( ) const
inline

Get the input image.

Definition at line 114 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
virtual const char* itk::ImageFunction< TInputImage, TOutput, TCoordRep >::GetNameOfClass ( ) const
virtual

Run-time type information (and related methods).

Reimplemented from itk::FunctionBase< Point< TCoordRep, TInputImage::ImageDimension >, TOutput >.

Reimplemented in itk::WindowedSincInterpolateImageFunction< TInputImage, VRadius, TWindowFunction, TBoundaryCondition, TCoordRep >, itk::CentralDifferenceImageFunction< TInputImage, TCoordRep, TOutputType >, itk::BSplineInterpolateImageFunction< TImageType, TCoordRep, TCoefficientType >, itk::BSplineInterpolateImageFunction< TImageType, TCoordRep, TImageType::PixelType >, itk::SiddonJacobsRayCastInterpolateImageFunction< TInputImage, TCoordRep >, itk::LabelImageGaussianInterpolateImageFunction< TInputImage, TCoordRep, TPixelCompare >, itk::RayCastInterpolateImageFunction< TInputImage, TCoordRep >, itk::VectorCentralDifferenceImageFunction< TInputImage, TCoordRep >, itk::BSplineControlPointImageFunction< TInputImage, TCoordRep >, itk::BSplineResampleImageFunction< TImageType, TCoordRep >, itk::VectorInterpolateImageFunction< TInputImage, TCoordRep >, itk::GaussianDerivativeImageFunction< TInputImage, TOutput >, itk::VectorLinearInterpolateNearestNeighborExtrapolateImageFunction< TInputImage, TCoordRep >, itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >, itk::GaussianInterpolateImageFunction< TInputImage, TCoordRep >, itk::NeighborhoodOperatorImageFunction< TInputImage, TOutput >, itk::DiscreteGaussianDerivativeImageFunction< TInputImage, TOutput >, itk::DiscreteGradientMagnitudeGaussianImageFunction< TInputImage, TOutput >, itk::CovarianceImageFunction< TInputImage, TCoordRep >, itk::ScatterMatrixImageFunction< TInputImage, TCoordRep >, itk::PhysicalCentralDifferenceImageFunction< TInputImage, TCoordRep >, itk::GaussianBlurImageFunction< TInputImage, TOutput >, itk::MeanImageFunction< TInputImage, TCoordRep >, itk::MedianImageFunction< TInputImage, TCoordRep >, itk::VectorMeanImageFunction< TInputImage, TCoordRep >, itk::ComplexBSplineInterpolateImageFunction< TImageType, TCoordRep, TCoefficientType >, itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >, itk::MahalanobisDistanceThresholdImageFunction< TInputImage, TCoordRep >, itk::InterpolateImageFunction< TInputImage, TCoordRep >, itk::InterpolateImageFunction< TImageType, TCoordRep >, itk::SumOfSquaresImageFunction< TInputImage, TCoordRep >, itk::VectorLinearInterpolateImageFunction< TInputImage, TCoordRep >, itk::VectorNearestNeighborInterpolateImageFunction< TInputImage, TCoordRep >, itk::ExtrapolateImageFunction< TInputImage, TCoordRep >, itk::VarianceImageFunction< TInputImage, TCoordRep >, itk::BinaryThresholdImageFunction< TInputImage, TCoordRep >, itk::NeighborhoodBinaryThresholdImageFunction< TInputImage, TCoordRep >, itk::LabelImageGenericInterpolateImageFunction< TInputImage, TInterpolator, TCoordRep >, itk::NearestNeighborExtrapolateImageFunction< TInputImage, TCoordRep >, and itk::NearestNeighborInterpolateImageFunction< TInputImage, TCoordRep >.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
virtual const ContinuousIndexType& itk::ImageFunction< TInputImage, TOutput, TCoordRep >::GetStartContinuousIndex ( ) const
virtual
template<typename TInputImage, typename TOutput, typename TCoordRep = float>
virtual const IndexType& itk::ImageFunction< TInputImage, TOutput, TCoordRep >::GetStartIndex ( ) const
virtual
template<typename TInputImage, typename TOutput, typename TCoordRep = float>
virtual bool itk::ImageFunction< TInputImage, TOutput, TCoordRep >::IsInsideBuffer ( const IndexType &  index) const
inlinevirtual

Check if an index is inside the image buffer. We take into account the fact that each voxel has its center at the integer coordinate and extends half way to the next integer coordinate.

Warning
For efficiency, no validity checking of the input image is done.

Definition at line 136 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
virtual bool itk::ImageFunction< TInputImage, TOutput, TCoordRep >::IsInsideBuffer ( const ContinuousIndexType &  index) const
inlinevirtual

Check if a continuous index is inside the image buffer.

Warning
For efficiency, no validity checking of the input image is done.

Definition at line 156 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
virtual bool itk::ImageFunction< TInputImage, TOutput, TCoordRep >::IsInsideBuffer ( const PointType &  point) const
inlinevirtual

Check if a point is inside the image buffer.

Warning
For efficiency, no validity checking of the input image pointer is done.

Definition at line 174 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
void itk::ImageFunction< TInputImage, TOutput, TCoordRep >::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::Object.

Reimplemented in itk::InterpolateImageFunction< TImageType, TCoordRep >.

Referenced by itk::ExtrapolateImageFunction< TInputImage, TCoordRep >::PrintSelf().

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
virtual void itk::ImageFunction< TInputImage, TOutput, TCoordRep >::SetInputImage ( const InputImageType *  ptr)
virtual

Set the input image.

Warning
this method caches BufferedRegion information. If the BufferedRegion has changed, user must call SetInputImage again to update cached values.

Reimplemented in itk::WindowedSincInterpolateImageFunction< TInputImage, VRadius, TWindowFunction, TBoundaryCondition, TCoordRep >, itk::BSplineInterpolateImageFunction< TImageType, TCoordRep, TCoefficientType >, itk::BSplineInterpolateImageFunction< TImageType, TCoordRep, TImageType::PixelType >, itk::GaussianDerivativeImageFunction< TInputImage, TOutput >, itk::CentralDifferenceImageFunction< TInputImage, TCoordRep, TOutputType >, itk::GaussianBlurImageFunction< TInputImage, TOutput >, itk::ComplexBSplineInterpolateImageFunction< TImageType, TCoordRep, TCoefficientType >, itk::BSplineControlPointImageFunction< TInputImage, TCoordRep >, itk::GaussianInterpolateImageFunction< TInputImage, TCoordRep >, itk::LabelImageGenericInterpolateImageFunction< TInputImage, TInterpolator, TCoordRep >, itk::PhysicalCentralDifferenceImageFunction< TInputImage, TCoordRep >, and itk::BSplineResampleImageFunction< TImageType, TCoordRep >.

Member Data Documentation

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
constexpr unsigned int itk::ImageFunction< TInputImage, TOutput, TCoordRep >::ImageDimension = TInputImage::ImageDimension
static

Dimension underlying input image.

Definition at line 65 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
ContinuousIndexType itk::ImageFunction< TInputImage, TOutput, TCoordRep >::m_EndContinuousIndex
protected

Definition at line 230 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
IndexType itk::ImageFunction< TInputImage, TOutput, TCoordRep >::m_EndIndex
protected

Definition at line 227 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
InputImageConstPointer itk::ImageFunction< TInputImage, TOutput, TCoordRep >::m_Image
protected

Const pointer to the input image.

Definition at line 223 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
ContinuousIndexType itk::ImageFunction< TInputImage, TOutput, TCoordRep >::m_StartContinuousIndex
protected

Definition at line 229 of file itkImageFunction.h.

template<typename TInputImage, typename TOutput, typename TCoordRep = float>
IndexType itk::ImageFunction< TInputImage, TOutput, TCoordRep >::m_StartIndex
protected

Cache some values for testing if indices are inside buffered region.

Definition at line 226 of file itkImageFunction.h.

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