ITK  4.13.0
Insight Segmentation and Registration Toolkit
Public Types | Public Member Functions | Static Public Member Functions | Static Public Attributes | Protected Member Functions | Private Attributes | List of all members
itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput > Class Template Reference

#include <itkDiscreteHessianGaussianImageFunction.h>

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

Detailed Description

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

Compute the Hessian Gaussian of an image at a specific location in space by calculating discrete second-order gaussian derivatives. This class is templated over the input image type.

The Initialize() method must be called after setting the parameters and before evaluating the function.

Author
Ivan Macia, VICOMTech, Spain, http://www.vicomtech.es

This implementation was taken from the Insight Journal paper: https://hdl.handle.net/1926/1290

See Also
NeighborhoodOperator
ImageFunction

Definition at line 46 of file itkDiscreteHessianGaussianImageFunction.h.

Public Types

typedef SmartPointer< const SelfConstPointer
 
typedef
Superclass::ContinuousIndexType 
ContinuousIndexType
 
typedef FixedArray
< GaussianDerivativeOperatorType,
3 *itkGetStaticConstMacro(ImageDimension2) > 
GaussianDerivativeOperatorArrayType
 
typedef
itk::GaussianDerivativeOperator
< TOutput,
itkGetStaticConstMacro(ImageDimension2) > 
GaussianDerivativeOperatorType
 
typedef Superclass::IndexType IndexType
 
typedef Superclass::IndexValueType IndexValueType
 
typedef Superclass::InputImageType InputImageType
 
typedef Superclass::InputPixelType InputPixelType
 
enum  InterpolationModeType {
  NearestNeighbourInterpolation,
  LinearInterpolation
}
 
typedef FixedArray< KernelType,
itkGetStaticConstMacro(ImageDimension2)*(itkGetStaticConstMacro(ImageDimension2)+1)/2 > 
KernelArrayType
 
typedef Neighborhood< TOutput,
itkGetStaticConstMacro(ImageDimension2) > 
KernelType
 
typedef
OperatorImageFunctionType::Pointer 
OperatorImageFunctionPointer
 
typedef
NeighborhoodOperatorImageFunction
< InputImageType, TOutput > 
OperatorImageFunctionType
 
typedef Superclass::OutputType OutputType
 
typedef SmartPointer< SelfPointer
 
typedef Superclass::PointType PointType
 
typedef
DiscreteHessianGaussianImageFunction 
Self
 
typedef ImageFunction
< TInputImage,
SymmetricSecondRankTensor
< TOutput,
TInputImage::ImageDimension >
, TOutput > 
Superclass
 
typedef
SymmetricSecondRankTensor
< TOutput,
TInputImage::ImageDimension > 
TensorType
 
typedef FixedArray< double,
itkGetStaticConstMacro(ImageDimension2) > 
VarianceArrayType
 
- Public Types inherited from itk::ImageFunction< TInputImage, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >, TOutput >
typedef SmartPointer< const SelfConstPointer
 
typedef ContinuousIndex
< TOutput,
itkGetStaticConstMacro(ImageDimension) > 
ContinuousIndexType
 
typedef TOutput CoordRepType
 
typedef InputImageType::IndexType IndexType
 
typedef
InputImageType::IndexValueType 
IndexValueType
 
typedef
InputImageType::ConstPointer 
InputImageConstPointer
 
typedef TInputImage InputImageType
 
typedef InputImageType::PixelType InputPixelType
 
typedef
SymmetricSecondRankTensor
< TOutput,
TInputImage::ImageDimension > 
OutputType
 
typedef SmartPointer< SelfPointer
 
typedef Point< TOutput,
itkGetStaticConstMacro(ImageDimension) > 
PointType
 
typedef ImageFunction Self
 
typedef FunctionBase< Point
< TOutput,
itkGetStaticConstMacro(ImageDimension) >
, SymmetricSecondRankTensor
< TOutput,
TInputImage::ImageDimension > > 
Superclass
 
- Public Types inherited from itk::FunctionBase< Point< TOutput, TInputImage::ImageDimension >, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension > >
typedef SmartPointer< const SelfConstPointer
 
typedef Point< TOutput,
TInputImage::ImageDimension > 
InputType
 
typedef
SymmetricSecondRankTensor
< TOutput,
TInputImage::ImageDimension > 
OutputType
 
typedef SmartPointer< SelfPointer
 
typedef FunctionBase Self
 
typedef Object Superclass
 
- Public Types inherited from itk::Object
typedef SmartPointer< const SelfConstPointer
 
typedef SmartPointer< SelfPointer
 
typedef Object Self
 
typedef LightObject Superclass
 
- Public Types inherited from itk::LightObject
typedef SmartPointer< const SelfConstPointer
 
typedef SmartPointer< SelfPointer
 
typedef LightObject Self
 

Public Member Functions

virtual ::itk::LightObject::Pointer CreateAnother () const
 
virtual OutputType Evaluate (const PointType &point) const override
 
virtual OutputType EvaluateAtContinuousIndex (const ContinuousIndexType &index) const override
 
virtual OutputType EvaluateAtIndex (const IndexType &index) const override
 
virtual const char * GetNameOfClass () const
 
virtual void Initialize ()
 
virtual void SetInputImage (const InputImageType *ptr) override
 
void SetSigma (const double sigma)
 
virtual void SetVariance (VarianceArrayType _arg)
 
virtual const VarianceArrayType GetVariance () const
 
virtual void SetVariance (double data[])
 
virtual void SetVariance (double variance)
 
virtual void SetMaximumError (double _arg)
 
virtual double GetMaximumError () const
 
virtual void SetNormalizeAcrossScale (bool _arg)
 
virtual bool GetNormalizeAcrossScale () const
 
virtual void NormalizeAcrossScaleOn ()
 
virtual void NormalizeAcrossScaleOff ()
 
virtual void SetUseImageSpacing (bool _arg)
 
virtual bool GetUseImageSpacing () const
 
virtual void UseImageSpacingOn ()
 
virtual void UseImageSpacingOff ()
 
virtual void SetMaximumKernelWidth (unsigned int _arg)
 
virtual unsigned int GetMaximumKernelWidth () const
 
virtual void SetInterpolationMode (InterpolationModeType _arg)
 
virtual InterpolationModeType GetInterpolationMode () const
 
- Public Member Functions inherited from itk::ImageFunction< TInputImage, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >, TOutput >
void ConvertContinuousIndexToNearestIndex (const ContinuousIndexType &cindex, IndexType &index) const
 
void ConvertPointToContinuousIndex (const PointType &point, ContinuousIndexType &cindex) const
 
void ConvertPointToNearestIndex (const PointType &point, IndexType &index) const
 
virtual
SymmetricSecondRankTensor
< TOutput,
TInputImage::ImageDimension > 
Evaluate (const PointType &point) const override=0
 
virtual
SymmetricSecondRankTensor
< TOutput,
TInputImage::ImageDimension > 
EvaluateAtContinuousIndex (const ContinuousIndexType &index) const =0
 
virtual
SymmetricSecondRankTensor
< TOutput,
TInputImage::ImageDimension > 
EvaluateAtIndex (const IndexType &index) const =0
 
virtual const ContinuousIndexTypeGetEndContinuousIndex () const
 
virtual const IndexTypeGetEndIndex () const
 
const InputImageTypeGetInputImage () const
 
virtual const ContinuousIndexTypeGetStartContinuousIndex () const
 
virtual const IndexTypeGetStartIndex () 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::FunctionBase< Point< TOutput, TInputImage::ImageDimension >, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension > >
virtual OutputType Evaluate (const InputType &input) const =0
 
- Public Member Functions inherited from itk::Object
unsigned long AddObserver (const EventObject &event, Command *)
 
unsigned long AddObserver (const EventObject &event, Command *) const
 
virtual void DebugOff () const
 
virtual void DebugOn () const
 
CommandGetCommand (unsigned long tag)
 
bool GetDebug () const
 
MetaDataDictionaryGetMetaDataDictionary ()
 
const MetaDataDictionaryGetMetaDataDictionary () const
 
virtual ModifiedTimeType GetMTime () const
 
virtual const TimeStampGetTimeStamp () const
 
bool HasObserver (const EventObject &event) const
 
void InvokeEvent (const EventObject &)
 
void InvokeEvent (const EventObject &) const
 
virtual void Modified () const
 
virtual void Register () const override
 
void RemoveAllObservers ()
 
void RemoveObserver (unsigned long tag)
 
void SetDebug (bool debugFlag) const
 
void SetMetaDataDictionary (const MetaDataDictionary &rhs)
 
virtual void SetReferenceCount (int) override
 
virtual void UnRegister () const noexceptoverride
 
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 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 flag)
 
- Static Public Member Functions inherited from itk::LightObject
static void BreakOnError ()
 
static Pointer New ()
 

Static Public Attributes

static const unsigned int ImageDimension2 = InputImageType::ImageDimension
 
- Static Public Attributes inherited from itk::ImageFunction< TInputImage, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >, TOutput >
static const unsigned int ImageDimension
 

Protected Member Functions

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

Private Attributes

InterpolationModeType m_InterpolationMode
 
KernelArrayType m_KernelArray
 
double m_MaximumError
 
unsigned int m_MaximumKernelWidth
 
bool m_NormalizeAcrossScale
 
GaussianDerivativeOperatorArrayType m_OperatorArray
 
OperatorImageFunctionPointer m_OperatorImageFunction
 
bool m_UseImageSpacing
 
VarianceArrayType m_Variance
 

Additional Inherited Members

- Protected Attributes inherited from itk::ImageFunction< TInputImage, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >, TOutput >
ContinuousIndexType m_EndContinuousIndex
 
IndexType m_EndIndex
 
InputImageConstPointer m_Image
 
ContinuousIndexType m_StartContinuousIndex
 
IndexType m_StartIndex
 
- Protected Attributes inherited from itk::LightObject
AtomicInt< int > m_ReferenceCount
 

Member Typedef Documentation

template<typename TInputImage , typename TOutput = double>
typedef SmartPointer< const Self > itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::ConstPointer

Definition at line 63 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef Superclass::ContinuousIndexType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::ContinuousIndexType

Definition at line 76 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef FixedArray< GaussianDerivativeOperatorType, 3 *itkGetStaticConstMacro(ImageDimension2) > itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::GaussianDerivativeOperatorArrayType

Array to store gaussian derivative operators from zero to second order (3*ImageDimension operators)

Definition at line 98 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef itk::GaussianDerivativeOperator< TOutput, itkGetStaticConstMacro(ImageDimension2) > itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::GaussianDerivativeOperatorType

Definition at line 93 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef Superclass::IndexType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::IndexType

Definition at line 74 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef Superclass::IndexValueType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::IndexValueType

Definition at line 75 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef Superclass::InputImageType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::InputImageType

Image dependent types

Definition at line 69 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef Superclass::InputPixelType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::InputPixelType

Definition at line 73 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef FixedArray< KernelType, itkGetStaticConstMacro(ImageDimension2) * ( itkGetStaticConstMacro(ImageDimension2) + 1 ) / 2 > itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::KernelArrayType

Array to store precomputed N-dimensional kernels for the hessian components

Definition at line 105 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef Neighborhood< TOutput, itkGetStaticConstMacro(ImageDimension2) > itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::KernelType

Definition at line 100 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef OperatorImageFunctionType::Pointer itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::OperatorImageFunctionPointer

Definition at line 111 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef NeighborhoodOperatorImageFunction< InputImageType, TOutput > itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::OperatorImageFunctionType

Image function that performs convolution with the neighborhood operator

Definition at line 110 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef Superclass::OutputType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::OutputType

Definition at line 87 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef SmartPointer< Self > itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::Pointer

Smart pointer typedef support

Definition at line 62 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef Superclass::PointType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::PointType

Definition at line 77 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef DiscreteHessianGaussianImageFunction itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::Self

Standard "Self" typedef

Definition at line 54 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef ImageFunction< TInputImage, SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension >, TOutput > itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::Superclass

Standard "Superclass" typedef

Definition at line 59 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef SymmetricSecondRankTensor< TOutput, TInputImage::ImageDimension > itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::TensorType

Output type

Definition at line 86 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
typedef FixedArray< double, itkGetStaticConstMacro(ImageDimension2) > itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::VarianceArrayType

Definition at line 89 of file itkDiscreteHessianGaussianImageFunction.h.

Member Enumeration Documentation

template<typename TInputImage , typename TOutput = double>
enum itk::DiscreteHessianGaussianImageFunction::InterpolationModeType

Interpolation modes

Enumerator
NearestNeighbourInterpolation 
LinearInterpolation 

Definition at line 114 of file itkDiscreteHessianGaussianImageFunction.h.

Constructor & Destructor Documentation

template<typename TInputImage , typename TOutput = double>
itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::DiscreteHessianGaussianImageFunction ( )
protected
template<typename TInputImage , typename TOutput = double>
itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::DiscreteHessianGaussianImageFunction ( const Self )
inlineprotected

Definition at line 201 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::~DiscreteHessianGaussianImageFunction ( )
inlineprotected

Definition at line 203 of file itkDiscreteHessianGaussianImageFunction.h.

Member Function Documentation

template<typename TInputImage , typename TOutput = double>
virtual::itk::LightObject::Pointer itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::CreateAnother ( ) const
virtual

Create an object from an instance, potentially deferring to a factory. This method allows you to create an instance of an object that is exactly the same type as the referring object. This is useful in cases where an object has been cast back to a base class.

Reimplemented from itk::Object.

template<typename TInputImage , typename TOutput = double>
virtual OutputType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::Evaluate ( const PointType point) const
overridevirtual

Evalutate the in the given dimension at specified point

template<typename TInputImage , typename TOutput = double>
virtual OutputType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::EvaluateAtContinuousIndex ( const ContinuousIndexType index) const
overridevirtual

Evaluate the function at specified ContinuousIndex position

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

Evaluate the function at specified Index position

template<typename TInputImage , typename TOutput = double>
virtual InterpolationModeType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::GetInterpolationMode ( ) const
virtual

Set/Get the interpolation mode.

template<typename TInputImage , typename TOutput = double>
virtual double itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::GetMaximumError ( ) const
virtual

Set/Get the desired maximum error of the gaussian approximation. Maximum error is the difference between the area under the discrete Gaussian curve and the area under the continuous Gaussian. Maximum error affects the Gaussian operator size. The value is clamped between 0.00001 and 0.99999.

template<typename TInputImage , typename TOutput = double>
virtual unsigned int itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::GetMaximumKernelWidth ( ) const
virtual

Set/Get a limit for growth of the kernel. Small maximum error values with large variances will yield very large kernel sizes. This value can be used to truncate a kernel in such instances. A warning will be given on truncation of the kernel.

template<typename TInputImage , typename TOutput = double>
virtual const char* itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::GetNameOfClass ( ) const
virtual
template<typename TInputImage , typename TOutput = double>
virtual bool itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::GetNormalizeAcrossScale ( ) const
virtual

Set/Get the flag for calculating scale-space normalized derivatives. Normalized derivatives are obtained multiplying by the scale parameter t.

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

Set/Get the flag for using image spacing when calculating derivatives.

template<typename TInputImage , typename TOutput = double>
virtual const VarianceArrayType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::GetVariance ( ) const
virtual

Set/Get the variance for the discrete Gaussian kernel. Sets the variance for individual dimensions. The default is 0.0 in each dimension. If UseImageSpacing is true, the units are the physical units of your image. If UseImageSpacing is false then the units are pixels.

template<typename TInputImage , typename TOutput = double>
virtual void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::Initialize ( void  )
inlinevirtual

Initialize the Gaussian kernel. Call this method before evaluating the function. This method MUST be called after any changes to function parameters.

Definition at line 196 of file itkDiscreteHessianGaussianImageFunction.h.

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

Method for creation through the object factory

template<typename TInputImage , typename TOutput = double>
virtual void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::NormalizeAcrossScaleOff ( )
virtual

Set/Get the flag for calculating scale-space normalized derivatives. Normalized derivatives are obtained multiplying by the scale parameter t.

template<typename TInputImage , typename TOutput = double>
virtual void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::NormalizeAcrossScaleOn ( )
virtual

Set/Get the flag for calculating scale-space normalized derivatives. Normalized derivatives are obtained multiplying by the scale parameter t.

template<typename TInputImage , typename TOutput = double>
void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::operator= ( const Self )
inlineprotected

Definition at line 205 of file itkDiscreteHessianGaussianImageFunction.h.

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

template<typename TInputImage , typename TOutput = double>
void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::RecomputeGaussianKernel ( )
protected
template<typename TInputImage , typename TOutput = double>
virtual void itk::DiscreteHessianGaussianImageFunction< 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.
template<typename TInputImage , typename TOutput = double>
virtual void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::SetInterpolationMode ( InterpolationModeType  _arg)
virtual

Set/Get the interpolation mode.

template<typename TInputImage , typename TOutput = double>
virtual void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::SetMaximumError ( double  _arg)
virtual

Set/Get the desired maximum error of the gaussian approximation. Maximum error is the difference between the area under the discrete Gaussian curve and the area under the continuous Gaussian. Maximum error affects the Gaussian operator size. The value is clamped between 0.00001 and 0.99999.

template<typename TInputImage , typename TOutput = double>
virtual void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::SetMaximumKernelWidth ( unsigned int  _arg)
virtual

Set/Get a limit for growth of the kernel. Small maximum error values with large variances will yield very large kernel sizes. This value can be used to truncate a kernel in such instances. A warning will be given on truncation of the kernel.

template<typename TInputImage , typename TOutput = double>
virtual void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::SetNormalizeAcrossScale ( bool  _arg)
virtual

Set/Get the flag for calculating scale-space normalized derivatives. Normalized derivatives are obtained multiplying by the scale parameter t.

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

Convenience method for setting the variance through the standard deviation

Definition at line 147 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
virtual void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::SetUseImageSpacing ( bool  _arg)
virtual

Set/Get the flag for using image spacing when calculating derivatives.

template<typename TInputImage , typename TOutput = double>
virtual void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::SetVariance ( VarianceArrayType  _arg)
virtual

Set/Get the variance for the discrete Gaussian kernel. Sets the variance for individual dimensions. The default is 0.0 in each dimension. If UseImageSpacing is true, the units are the physical units of your image. If UseImageSpacing is false then the units are pixels.

template<typename TInputImage , typename TOutput = double>
virtual void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::SetVariance ( double  data[])
virtual

Set/Get the variance for the discrete Gaussian kernel. Sets the variance for individual dimensions. The default is 0.0 in each dimension. If UseImageSpacing is true, the units are the physical units of your image. If UseImageSpacing is false then the units are pixels.

template<typename TInputImage , typename TOutput = double>
virtual void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::SetVariance ( double  variance)
inlinevirtual

Convenience method for setting the variance for all dimensions

Definition at line 138 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
virtual void itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::UseImageSpacingOff ( )
virtual

Set/Get the flag for using image spacing when calculating derivatives.

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

Set/Get the flag for using image spacing when calculating derivatives.

Member Data Documentation

template<typename TInputImage , typename TOutput = double>
const unsigned int itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::ImageDimension2 = InputImageType::ImageDimension
static

Dimension of the underlying image

Definition at line 81 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
InterpolationModeType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::m_InterpolationMode
private

Interpolation mode

Definition at line 245 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
KernelArrayType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::m_KernelArray
private

Array of N-dimensional kernels which are the result of convolving the operators for calculating hessian matrix derivatives

Definition at line 233 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
double itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::m_MaximumError
private

Difference between the areas under the curves of the continuous and discrete Gaussian functions

Definition at line 217 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
unsigned int itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::m_MaximumKernelWidth
private

Maximum kernel size allowed. This value is used to truncate a kernel that has grown too large. A warning is given when the specified maximum error causes the kernel to exceed this size

Definition at line 222 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
bool itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::m_NormalizeAcrossScale
private

Flag for scale-space normalization of derivatives

Definition at line 239 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
GaussianDerivativeOperatorArrayType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::m_OperatorArray
mutableprivate

Array of derivative operators, one for each dimension and order. First N zero-order operators are stored, then N first-order and then N second-order making 3*N operators altogether where N=ImageDimension.

Definition at line 228 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
OperatorImageFunctionPointer itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::m_OperatorImageFunction
private

OperatorImageFunction

Definition at line 236 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
bool itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::m_UseImageSpacing
private

Flag to indicate whether to use image spacing

Definition at line 242 of file itkDiscreteHessianGaussianImageFunction.h.

template<typename TInputImage , typename TOutput = double>
VarianceArrayType itk::DiscreteHessianGaussianImageFunction< TInputImage, TOutput >::m_Variance
private

Desired variance of the discrete Gaussian function

Definition at line 213 of file itkDiscreteHessianGaussianImageFunction.h.


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