ITK  6.0.0
Insight Toolkit
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itk::GaussianDerivativeImageFunction< TInputImage, TOutput > Class Template Reference
Group Core » Module ITKImageFunction

#include <itkGaussianDerivativeImageFunction.h>

Detailed Description

template<typename TInputImage, typename TOutput = double>
class itk::GaussianDerivativeImageFunction< TInputImage, TOutput >

Compute the Gaussian derivatives of an the image at a specific location in space, i.e. point, index or continuous index.

Note
From ITK 5, the Evaluate member functions of this class are concurrent thread safe: It is safe to have multiple simultaneous Evaluate calls on a GaussianDerivativeImageFunction object.

This class is templated over the input image type.

See also
NeighborhoodOperator
ImageFunction

Definition at line 50 of file itkGaussianDerivativeImageFunction.h.

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

Public Types

using ConstPointer = SmartPointer< const Self >
 
using ContinuousIndexType = typename Superclass::ContinuousIndexType
 
using GaussianDerivativeSpatialFunctionPointer = typename GaussianDerivativeSpatialFunctionType::Pointer
 
using GaussianDerivativeSpatialFunctionType = GaussianDerivativeSpatialFunction< TOutput, 1 >
 
using IndexType = typename InputImageType::IndexType
 
using InputImageType = TInputImage
 
using InputPixelType = typename InputImageType::PixelType
 
using NeighborhoodType = Neighborhood< InputPixelType, Self::ImageDimension >
 
using OperatorArrayType = FixedArray< OperatorNeighborhoodType, Self::ImageDimension >
 
using OperatorNeighborhoodType = Neighborhood< TOutput, Self::ImageDimension >
 
using Pointer = SmartPointer< Self >
 
using PointType = typename Superclass::PointType
 
using Self = GaussianDerivativeImageFunction
 
using Superclass = ImageFunction< TInputImage, Vector< TOutput, TInputImage::ImageDimension >, TOutput >
 
using VectorType = Vector< TOutput, Self::ImageDimension >
 
- Public Types inherited from itk::ImageFunction< TInputImage, Vector< double, TInputImage::ImageDimension >, 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 = Vector< double, TInputImage::ImageDimension >
 
using Pointer = SmartPointer< Self >
 
using PointType = Point< double, Self::ImageDimension >
 
using Self = ImageFunction
 
using Superclass = FunctionBase< Point< double, Self::ImageDimension >, Vector< double, TInputImage::ImageDimension > >
 
- Public Types inherited from itk::FunctionBase< Point< double, TInputImage::ImageDimension >, Vector< double, TInputImage::ImageDimension > >
using ConstPointer = SmartPointer< const Self >
 
using InputType = Point< double, TInputImage::ImageDimension >
 
using OutputType = Vector< double, TInputImage::ImageDimension >
 
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 Evaluate (const PointType &point) const override
 
OutputType EvaluateAtContinuousIndex (const ContinuousIndexType &cindex) const override
 
OutputType EvaluateAtIndex (const IndexType &index) const override
 
const double * GetExtent () const
 
const char * GetNameOfClass () const override
 
const double * GetSigma () const
 
void SetExtent (const double *extent)
 
void SetExtent (const double extent)
 
void SetInputImage (const InputImageType *ptr) override
 
void SetSigma (const double *sigma)
 
void SetSigma (const double sigma)
 
void SetUseImageSpacing (const bool val)
 
virtual void UseImageSpacingOn ()
 
virtual bool GetUseImageSpacing ()
 
- Public Member Functions inherited from itk::ImageFunction< TInputImage, Vector< double, TInputImage::ImageDimension >, 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 Vector< double, TInputImage::ImageDimension > EvaluateAtContinuousIndex (const ContinuousIndexType &index) const=0
 
virtual Vector< double, TInputImage::ImageDimension > 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 >, Vector< double, TInputImage::ImageDimension > >
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 = InputImageType::ImageDimension
 
- Static Public Attributes inherited from itk::ImageFunction< TInputImage, Vector< double, TInputImage::ImageDimension >, double >
static constexpr unsigned int ImageDimension
 

Protected Member Functions

 GaussianDerivativeImageFunction ()
 
void PrintSelf (std::ostream &os, Indent indent) const override
 
void RecomputeGaussianKernel ()
 
 ~GaussianDerivativeImageFunction () override=default
 
- Protected Member Functions inherited from itk::ImageFunction< TInputImage, Vector< double, TInputImage::ImageDimension >, 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 >, Vector< double, TInputImage::ImageDimension > >
 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 Attributes

double m_Extent [ImageDimension] {}
 
const GaussianDerivativeSpatialFunctionPointer m_GaussianDerivativeSpatialFunction
 
std::vector< Offset< ImageDimension > > m_ImageNeighborhoodOffsets [ImageDimension] {}
 
OperatorArrayType m_OperatorArray {}
 
double m_Sigma [ImageDimension] {}
 
bool m_UseImageSpacing { true }
 

Additional Inherited Members

- Protected Attributes inherited from itk::ImageFunction< TInputImage, Vector< double, TInputImage::ImageDimension >, 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 TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::ConstPointer = SmartPointer<const Self>

Definition at line 60 of file itkGaussianDerivativeImageFunction.h.

◆ ContinuousIndexType

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::ContinuousIndexType = typename Superclass::ContinuousIndexType

Definition at line 80 of file itkGaussianDerivativeImageFunction.h.

◆ GaussianDerivativeSpatialFunctionPointer

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::GaussianDerivativeSpatialFunctionPointer = typename GaussianDerivativeSpatialFunctionType::Pointer

Definition at line 90 of file itkGaussianDerivativeImageFunction.h.

◆ GaussianDerivativeSpatialFunctionType

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::GaussianDerivativeSpatialFunctionType = GaussianDerivativeSpatialFunction<TOutput, 1>

Definition at line 89 of file itkGaussianDerivativeImageFunction.h.

◆ IndexType

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::IndexType = typename InputImageType::IndexType

Definition at line 71 of file itkGaussianDerivativeImageFunction.h.

◆ InputImageType

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::InputImageType = TInputImage

InputImageType type alias support

Definition at line 69 of file itkGaussianDerivativeImageFunction.h.

◆ InputPixelType

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::InputPixelType = typename InputImageType::PixelType

Definition at line 70 of file itkGaussianDerivativeImageFunction.h.

◆ NeighborhoodType

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::NeighborhoodType = Neighborhood<InputPixelType, Self::ImageDimension>

Definition at line 82 of file itkGaussianDerivativeImageFunction.h.

◆ OperatorArrayType

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::OperatorArrayType = FixedArray<OperatorNeighborhoodType, Self::ImageDimension>

Definition at line 87 of file itkGaussianDerivativeImageFunction.h.

◆ OperatorNeighborhoodType

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::OperatorNeighborhoodType = Neighborhood<TOutput, Self::ImageDimension>

Definition at line 83 of file itkGaussianDerivativeImageFunction.h.

◆ Pointer

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::Pointer = SmartPointer<Self>

Definition at line 59 of file itkGaussianDerivativeImageFunction.h.

◆ PointType

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::PointType = typename Superclass::PointType

Point type alias support

Definition at line 99 of file itkGaussianDerivativeImageFunction.h.

◆ Self

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::Self = GaussianDerivativeImageFunction

Standard class type aliases.

Definition at line 57 of file itkGaussianDerivativeImageFunction.h.

◆ Superclass

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::Superclass = ImageFunction<TInputImage, Vector<TOutput, TInputImage::ImageDimension>, TOutput>

Definition at line 58 of file itkGaussianDerivativeImageFunction.h.

◆ VectorType

template<typename TInputImage , typename TOutput = double>
using itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::VectorType = Vector<TOutput, Self::ImageDimension>

Definition at line 85 of file itkGaussianDerivativeImageFunction.h.

Constructor & Destructor Documentation

◆ GaussianDerivativeImageFunction()

template<typename TInputImage , typename TOutput = double>
itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::GaussianDerivativeImageFunction ( )
protected

◆ ~GaussianDerivativeImageFunction()

template<typename TInputImage , typename TOutput = double>
itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::~GaussianDerivativeImageFunction ( )
overrideprotecteddefault

Member Function Documentation

◆ Evaluate()

template<typename TInputImage , typename TOutput = double>
OutputType itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::Evaluate ( const PointType &  point) const
override

Evaluate the function at the specified point.

◆ EvaluateAtContinuousIndex()

template<typename TInputImage , typename TOutput = double>
OutputType itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::EvaluateAtContinuousIndex ( const ContinuousIndexType &  cindex) const
override

Evaluate the function at specified ContinuousIndex position.

◆ EvaluateAtIndex()

template<typename TInputImage , typename TOutput = double>
OutputType itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::EvaluateAtIndex ( const IndexType &  index) const
overridevirtual

Evaluate the function at specified Index position.

Implements itk::ImageFunction< TInputImage, Vector< double, TInputImage::ImageDimension >, double >.

◆ GetExtent()

template<typename TInputImage , typename TOutput = double>
const double * itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::GetExtent ( ) const
inline

Definition at line 155 of file itkGaussianDerivativeImageFunction.h.

◆ GetNameOfClass()

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

Reimplemented from itk::Object.

◆ GetSigma()

template<typename TInputImage , typename TOutput = double>
const double * itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::GetSigma ( ) const
inline

Definition at line 142 of file itkGaussianDerivativeImageFunction.h.

◆ GetUseImageSpacing()

template<typename TInputImage , typename TOutput = double>
virtual bool itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::GetUseImageSpacing ( )
virtual

UseImageSpacing controls the extent of the computations. Set UseImageSpacing to true to set the units to physical units of the image. Set UseImageSpacing to false to set the units of pixels.

◆ New()

template<typename TInputImage , typename TOutput = double>
static Pointer itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::New ( )
static

Method for creation through the object factory.

◆ PrintSelf()

template<typename TInputImage , typename TOutput = double>
void itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::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.

◆ RecomputeGaussianKernel()

template<typename TInputImage , typename TOutput = double>
void itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::RecomputeGaussianKernel ( )
protected

Recompute the Gaussian kernel used to evaluate indexes. This should use a fastest Derivative Gaussian operator.

◆ SetExtent() [1/2]

template<typename TInputImage , typename TOutput = double>
void itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::SetExtent ( const double *  extent)

Set the extent of the discrete Gaussian kernel.

◆ SetExtent() [2/2]

template<typename TInputImage , typename TOutput = double>
void itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::SetExtent ( const double  extent)

◆ SetInputImage()

template<typename TInputImage , typename TOutput = double>
void itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::SetInputImage ( const InputImageType *  ptr)
overridevirtual

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 from itk::ImageFunction< TInputImage, Vector< double, TInputImage::ImageDimension >, double >.

◆ SetSigma() [1/2]

template<typename TInputImage , typename TOutput = double>
void itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::SetSigma ( const double *  sigma)

The variance for the discrete Gaussian kernel. Sets the variance independently for each dimension, but see also SetVariance(const double v). The default is 0.0 in each dimension. The extent of the kernel is controlled by UseImageSpacing.

◆ SetSigma() [2/2]

template<typename TInputImage , typename TOutput = double>
void itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::SetSigma ( const double  sigma)

◆ SetUseImageSpacing()

template<typename TInputImage , typename TOutput = double>
void itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::SetUseImageSpacing ( const bool  val)
inline

UseImageSpacing controls the extent of the computations. Set UseImageSpacing to true to set the units to physical units of the image. Set UseImageSpacing to false to set the units of pixels.

Definition at line 118 of file itkGaussianDerivativeImageFunction.h.

◆ UseImageSpacingOn()

template<typename TInputImage , typename TOutput = double>
virtual void itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::UseImageSpacingOn ( )
virtual

UseImageSpacing controls the extent of the computations. Set UseImageSpacing to true to set the units to physical units of the image. Set UseImageSpacing to false to set the units of pixels.

Member Data Documentation

◆ ImageDimension

template<typename TInputImage , typename TOutput = double>
constexpr unsigned int itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::ImageDimension = InputImageType::ImageDimension
staticconstexpr

Dimension of the underlying image.

Definition at line 74 of file itkGaussianDerivativeImageFunction.h.

◆ m_Extent

template<typename TInputImage , typename TOutput = double>
double itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::m_Extent[ImageDimension] {}
private

Definition at line 189 of file itkGaussianDerivativeImageFunction.h.

◆ m_GaussianDerivativeSpatialFunction

template<typename TInputImage , typename TOutput = double>
const GaussianDerivativeSpatialFunctionPointer itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::m_GaussianDerivativeSpatialFunction
private
Initial value:
{
GaussianDerivativeSpatialFunctionType::New()
}

Neighborhood Image Function.

Definition at line 195 of file itkGaussianDerivativeImageFunction.h.

◆ m_ImageNeighborhoodOffsets

template<typename TInputImage , typename TOutput = double>
std::vector<Offset<ImageDimension> > itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::m_ImageNeighborhoodOffsets[ImageDimension] {}
private

Definition at line 187 of file itkGaussianDerivativeImageFunction.h.

◆ m_OperatorArray

template<typename TInputImage , typename TOutput = double>
OperatorArrayType itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::m_OperatorArray {}
private

Array of 1D operators. Contains a derivative kernel for each dimension. Note: A future version of ITK could extend this array to include a Gaussian blurring kernel for each dimension.

Definition at line 185 of file itkGaussianDerivativeImageFunction.h.

◆ m_Sigma

template<typename TInputImage , typename TOutput = double>
double itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::m_Sigma[ImageDimension] {}
private

Definition at line 180 of file itkGaussianDerivativeImageFunction.h.

◆ m_UseImageSpacing

template<typename TInputImage , typename TOutput = double>
bool itk::GaussianDerivativeImageFunction< TInputImage, TOutput >::m_UseImageSpacing { true }
private

Flag to indicate whether to use image spacing.

Definition at line 192 of file itkGaussianDerivativeImageFunction.h.

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