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itk::LinearInterpolateImageFunction< TInputImage, TCoordRep > Class Template Reference
Data Processing Objects » Functions » Image Functions | Data Processing Objects » Functions » Image Functions » Image Interpolators | Group Core » Module ITKImageFunction

#include <itkLinearInterpolateImageFunction.h>

Detailed Description

template<typename TInputImage, typename TCoordRep = double>
class itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >

Linearly interpolate an image at specified positions.

LinearInterpolateImageFunction linearly interpolates image intensity at a non-integer pixel position. This class is templated over the input image type and the coordinate representation type (e.g. float or double).

This function works for N-dimensional images.

This function works for images with scalar and vector pixel types, and for images of type VectorImage.

See also
VectorLinearInterpolateImageFunction
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Definition at line 51 of file itkLinearInterpolateImageFunction.h.

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

Classes

struct  Dispatch
 
struct  DispatchBase
 

Public Types

using ConstPointer = SmartPointer< const Self >
 
using InternalComputationType = typename ContinuousIndexType::ValueType
 
using Pointer = SmartPointer< Self >
 
using Self = LinearInterpolateImageFunction
 
using Superclass = InterpolateImageFunction< TInputImage, TCoordRep >
 
- Public Types inherited from itk::InterpolateImageFunction< TInputImage, double >
using ConstPointer = SmartPointer< const Self >
 
using Pointer = SmartPointer< Self >
 
using RealType = typename NumericTraits< typename TInputImage::PixelType >::RealType
 
using Self = InterpolateImageFunction
 
using SizeType = typename InputImageType::SizeType
 
using Superclass = ImageFunction< TInputImage, typename NumericTraits< typename TInputImage::PixelType >::RealType, double >
 
- Public Types inherited from itk::ImageFunction< TInputImage, NumericTraits< TInputImage::PixelType >::RealType, double >
using ConstPointer = SmartPointer< const Self >
 
using ContinuousIndexType = ContinuousIndex< double, Self::ImageDimension >
 
using CoordRepType = double
 
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 = NumericTraits< TInputImage::PixelType >::RealType
 
using Pointer = SmartPointer< Self >
 
using PointType = Point< double, Self::ImageDimension >
 
using Self = ImageFunction
 
using Superclass = FunctionBase< Point< double, Self::ImageDimension >, NumericTraits< TInputImage::PixelType >::RealType >
 
- Public Types inherited from itk::FunctionBase< Point< double, TInputImage::ImageDimension >, NumericTraits< TInputImage::PixelType >::RealType >
using ConstPointer = SmartPointer< const Self >
 
using InputType = Point< double, TInputImage::ImageDimension >
 
using OutputType = NumericTraits< TInputImage::PixelType >::RealType
 
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

OutputType EvaluateAtContinuousIndex (const ContinuousIndexType &index) const override
 
const char * GetNameOfClass () const override
 
SizeType GetRadius () const override
 
- Public Member Functions inherited from itk::InterpolateImageFunction< TInputImage, double >
OutputType EvaluateAtContinuousIndex (const ContinuousIndexType &index) const override=0
 
OutputType EvaluateAtIndex (const IndexType &index) const override
 
const char * GetNameOfClass () const override
 
virtual SizeType GetRadius () const=0
 
OutputType Evaluate (const PointType &point) const override
 
- Public Member Functions inherited from itk::ImageFunction< TInputImage, NumericTraits< TInputImage::PixelType >::RealType, double >
void ConvertContinuousIndexToNearestIndex (const ContinuousIndexType &cindex, IndexType &index) const
 
void ConvertPointToContinuousIndex (const PointType &point, ContinuousIndexType &cindex) const
 
OutputType Evaluate (const PointType &point) const override=0
 
virtual NumericTraits< TInputImage::PixelType >::RealType EvaluateAtContinuousIndex (const ContinuousIndexType &index) const=0
 
virtual NumericTraits< TInputImage::PixelType >::RealType EvaluateAtIndex (const IndexType &index) const=0
 
virtual const ContinuousIndexType & GetEndContinuousIndex () const
 
virtual const IndexType & GetEndIndex () const
 
const InputImageType * GetInputImage () const
 
const char * GetNameOfClass () const override
 
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
 
void ConvertPointToNearestIndex (const PointType &point, IndexType &index) const
 
- Public Member Functions inherited from itk::FunctionBase< Point< double, TInputImage::ImageDimension >, NumericTraits< TInputImage::PixelType >::RealType >
virtual OutputType Evaluate (const InputType &input) const=0
 
const char * GetNameOfClass () const override
 
- Public Member Functions inherited from itk::Object
unsigned long AddObserver (const EventObject &event, Command *cmd) const
 
unsigned long AddObserver (const EventObject &event, std::function< void(const EventObject &)> function) 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
 
const char * GetNameOfClass () const override
 
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) const
 
void SetDebug (bool debugFlag) const
 
void SetReferenceCount (int) override
 
void UnRegister () const noexcept override
 
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
Pointer Clone () const
 
virtual Pointer CreateAnother () const
 
virtual void Delete ()
 
virtual const char * GetNameOfClass () const
 
virtual int GetReferenceCount () const
 
void Print (std::ostream &os, Indent indent=0) const
 
virtual void Register () const
 
virtual void SetReferenceCount (int)
 
virtual void UnRegister () const noexcept
 

Static Public Member Functions

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 val)
 
- Static Public Member Functions inherited from itk::LightObject
static void BreakOnError ()
 
static Pointer New ()
 

Static Public Attributes

static constexpr unsigned int ImageDimension = Superclass::ImageDimension
 
- Static Public Attributes inherited from itk::InterpolateImageFunction< TInputImage, double >
static constexpr unsigned int ImageDimension
 
- Static Public Attributes inherited from itk::ImageFunction< TInputImage, NumericTraits< TInputImage::PixelType >::RealType, double >
static constexpr unsigned int ImageDimension
 

Protected Member Functions

 LinearInterpolateImageFunction ()=default
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
 ~LinearInterpolateImageFunction () override=default
 
- Protected Member Functions inherited from itk::InterpolateImageFunction< TInputImage, double >
 InterpolateImageFunction ()=default
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
 ~InterpolateImageFunction () override=default
 
- Protected Member Functions inherited from itk::ImageFunction< TInputImage, NumericTraits< TInputImage::PixelType >::RealType, double >
 ImageFunction ()
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
 ~ImageFunction () override=default
 
- Protected Member Functions inherited from itk::FunctionBase< Point< double, TInputImage::ImageDimension >, NumericTraits< TInputImage::PixelType >::RealType >
 FunctionBase ()=default
 
 ~FunctionBase () override=default
 
- Protected Member Functions inherited from itk::Object
 Object ()
 
bool PrintObservers (std::ostream &os, Indent indent) const
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
virtual void SetTimeStamp (const TimeStamp &timeStamp)
 
 ~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 PrintSelf (std::ostream &os, Indent indent) const
 
virtual void PrintTrailer (std::ostream &os, Indent indent) const
 
virtual ~LightObject ()
 

Private Member Functions

OutputType EvaluateOptimized (const Dispatch< 0 > &, const ContinuousIndexType &) const
 
OutputType EvaluateOptimized (const Dispatch< 1 > &, const ContinuousIndexType &index) const
 
OutputType EvaluateOptimized (const Dispatch< 2 > &, const ContinuousIndexType &index) const
 
OutputType EvaluateOptimized (const Dispatch< 3 > &, const ContinuousIndexType &index) const
 
OutputType EvaluateOptimized (const DispatchBase &, const ContinuousIndexType &index) const
 
virtual OutputType EvaluateUnoptimized (const ContinuousIndexType &index) const
 
template<typename RealTypeScalarRealType >
void MakeZeroInitializer (const TInputImage *const inputImagePtr, VariableLengthVector< RealTypeScalarRealType > &tempZeros) const
 
template<typename RealTypeScalarRealType >
void MakeZeroInitializer (const TInputImage *const, RealTypeScalarRealType &tempZeros) const
 

Additional Inherited Members

- Protected Attributes inherited from itk::ImageFunction< TInputImage, NumericTraits< TInputImage::PixelType >::RealType, double >
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 {}
 

Member Typedef Documentation

◆ ConstPointer

template<typename TInputImage , typename TCoordRep = double>
using itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::ConstPointer = SmartPointer<const Self>

Definition at line 60 of file itkLinearInterpolateImageFunction.h.

◆ InternalComputationType

template<typename TInputImage , typename TCoordRep = double>
using itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::InternalComputationType = typename ContinuousIndexType::ValueType

Definition at line 91 of file itkLinearInterpolateImageFunction.h.

◆ Pointer

template<typename TInputImage , typename TCoordRep = double>
using itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::Pointer = SmartPointer<Self>

Definition at line 59 of file itkLinearInterpolateImageFunction.h.

◆ Self

template<typename TInputImage , typename TCoordRep = double>
using itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::Self = LinearInterpolateImageFunction

Standard class type aliases.

Definition at line 57 of file itkLinearInterpolateImageFunction.h.

◆ Superclass

template<typename TInputImage , typename TCoordRep = double>
using itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::Superclass = InterpolateImageFunction<TInputImage, TCoordRep>

Definition at line 58 of file itkLinearInterpolateImageFunction.h.

Constructor & Destructor Documentation

◆ LinearInterpolateImageFunction()

template<typename TInputImage , typename TCoordRep = double>
itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::LinearInterpolateImageFunction ( )
protecteddefault

◆ ~LinearInterpolateImageFunction()

template<typename TInputImage , typename TCoordRep = double>
itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::~LinearInterpolateImageFunction ( )
overrideprotecteddefault

Member Function Documentation

◆ EvaluateAtContinuousIndex()

template<typename TInputImage , typename TCoordRep = double>
OutputType itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::EvaluateAtContinuousIndex ( const ContinuousIndexType &  index) const
inlineoverridevirtual

Evaluate the function at a ContinuousIndex position

Returns the linearly interpolated image intensity at a specified point position. No bounds checking is done. The point is assume to lie within the image buffer.

ImageFunction::IsInsideBuffer() can be used to check bounds before calling the method.

Implements itk::InterpolateImageFunction< TInputImage, double >.

Definition at line 102 of file itkLinearInterpolateImageFunction.h.

◆ EvaluateOptimized() [1/5]

template<typename TInputImage , typename TCoordRep = double>
OutputType itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::EvaluateOptimized ( const Dispatch< 0 > &  ,
const ContinuousIndexType &   
) const
inlineprivate

Definition at line 127 of file itkLinearInterpolateImageFunction.h.

◆ EvaluateOptimized() [2/5]

template<typename TInputImage , typename TCoordRep = double>
OutputType itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::EvaluateOptimized ( const Dispatch< 1 > &  ,
const ContinuousIndexType &  index 
) const
inlineprivate

Definition at line 133 of file itkLinearInterpolateImageFunction.h.

◆ EvaluateOptimized() [3/5]

template<typename TInputImage , typename TCoordRep = double>
OutputType itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::EvaluateOptimized ( const Dispatch< 2 > &  ,
const ContinuousIndexType &  index 
) const
inlineprivate

Definition at line 158 of file itkLinearInterpolateImageFunction.h.

◆ EvaluateOptimized() [4/5]

template<typename TInputImage , typename TCoordRep = double>
OutputType itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::EvaluateOptimized ( const Dispatch< 3 > &  ,
const ContinuousIndexType &  index 
) const
inlineprivate

Definition at line 227 of file itkLinearInterpolateImageFunction.h.

◆ EvaluateOptimized() [5/5]

template<typename TInputImage , typename TCoordRep = double>
OutputType itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::EvaluateOptimized ( const DispatchBase &  ,
const ContinuousIndexType &  index 
) const
inlineprivate

Definition at line 476 of file itkLinearInterpolateImageFunction.h.

◆ EvaluateUnoptimized()

template<typename TInputImage , typename TCoordRep = double>
virtual OutputType itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::EvaluateUnoptimized ( const ContinuousIndexType &  index) const
inlineprivatevirtual

Evaluate interpolator at image index position.

◆ GetNameOfClass()

template<typename TInputImage , typename TCoordRep = double>
const char * itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::GetNameOfClass ( ) const
overridevirtual
See also
LightObject::GetNameOfClass()

Reimplemented from itk::Object.

◆ GetRadius()

template<typename TInputImage , typename TCoordRep = double>
SizeType itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::GetRadius ( ) const
inlineoverridevirtual

Get the radius required for interpolation.

This defines the number of surrounding pixels required to interpolate at a given point.

Implements itk::InterpolateImageFunction< TInputImage, double >.

Definition at line 108 of file itkLinearInterpolateImageFunction.h.

◆ MakeZeroInitializer() [1/2]

template<typename TInputImage , typename TCoordRep = double>
template<typename RealTypeScalarRealType >
void itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::MakeZeroInitializer ( const TInputImage *const  inputImagePtr,
VariableLengthVector< RealTypeScalarRealType > &  tempZeros 
) const
inlineprivate

A method to generically set all components to zero.

Definition at line 489 of file itkLinearInterpolateImageFunction.h.

◆ MakeZeroInitializer() [2/2]

template<typename TInputImage , typename TCoordRep = double>
template<typename RealTypeScalarRealType >
void itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::MakeZeroInitializer ( const TInputImage * const  ,
RealTypeScalarRealType &  tempZeros 
) const
inlineprivate

Definition at line 502 of file itkLinearInterpolateImageFunction.h.

◆ New()

template<typename TInputImage , typename TCoordRep = double>
static Pointer itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::New ( )
static

Method for creation through the object factory.

◆ PrintSelf()

template<typename TInputImage , typename TCoordRep = double>
void itk::LinearInterpolateImageFunction< TInputImage, 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.

Member Data Documentation

◆ ImageDimension

template<typename TInputImage , typename TCoordRep = double>
constexpr unsigned int itk::LinearInterpolateImageFunction< TInputImage, TCoordRep >::ImageDimension = Superclass::ImageDimension
staticconstexpr

Dimension underlying input image.

Definition at line 81 of file itkLinearInterpolateImageFunction.h.

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