#include <itkParabolicErodeDilateImageFilter.h>

Detailed Description

template<typename TInputImage, bool doDilate, typename TOutputImage = TInputImage>
class itk::ParabolicErodeDilateImageFilter< TInputImage, doDilate, TOutputImage >

Parent class for morphological operations with parabolic structuring elements.

Parabolic structuring elements are the morphological counterpart of the gaussian function in linear processing. Parabolic structuring elements are dimensionally decomposable and fast algorithms are available for computing erosions and dilations along lines. This class implements the "point of contact" algorithm, which is reasonably efficient. Improved versions, that are nearly independent of structuring function size, are also known but haven't been implemented here.

Parabolic structuring functions can be used as a fast alternative to the "rolling ball" structuring element classically used in background estimation, for example in ImageJ, have applications in image sharpening and distance transform computation.

This class uses an internal buffer of RealType pixels for each line. This line is cast to the output pixel type when written back to the output image. Since the filter uses dimensional decomposition this approach could result in inaccuracy as pixels are cast back and forth between low and high precision types. Use a high precision output type and cast manually if this is a problem.

This filter is threaded. Threading mechanism derived from SignedMaurerDistanceMap extensions by Gaetan Lehman

Author: Richard Beare, Department of Medicine, Monash University, Australia. Richa.nosp@m.rd.B.nosp@m.eare@.nosp@m.med..nosp@m.monas.nosp@m.h.ed.nosp@m.u.au

Definition at line 64 of file itkParabolicErodeDilateImageFilter.h.

Inheritance diagram for itk::ParabolicErodeDilateImageFilter< TInputImage, doDilate, TOutputImage >:

Public Types
typedef SmartPointer< const Self >	ConstPointer

typedef TInputImage::ConstPointer	InputImageConstPointer

typedef TInputImage::Pointer	InputImagePointer

typedef TInputImage	InputImageType

typedef TInputImage::SizeType	InputSizeType

typedef NumericTraits< PixelType >::FloatType	InternalRealType

typedef OutputImageType::RegionType	OutputImageRegionType

typedef TOutputImage	OutputImageType

typedef TOutputImage::PixelType	OutputPixelType

typedef TOutputImage::SizeType	OutputSizeType

typedef SmartPointer< Self >	Pointer

typedef itk::FixedArray< ScalarRealType, TInputImage::ImageDimension >	RadiusType

typedef NumericTraits< PixelType >::RealType	RealType

typedef NumericTraits< PixelType >::ScalarRealType	ScalarRealType

typedef ParabolicErodeDilateImageFilter	Self

typedef ImageToImageFilter< TInputImage, TOutputImage >	Superclass

Public Member Functions
virtual const char *	GetClassName () const

virtual const RadiusType &	GetScale ()

virtual const bool &	GetUseImageSpacing ()

	itkStaticConstMacro (ImageDimension, unsigned int, TInputImage::ImageDimension)

	itkStaticConstMacro (InputImageDimension, unsigned int, TInputImage::ImageDimension)

	itkStaticConstMacro (OutputImageDimension, unsigned int, TOutputImage::ImageDimension)

virtual void	SetScale (RadiusType _arg)

void	SetScale (ScalarRealType scale)

virtual void	SetUseImageSpacing (bool _arg)

virtual void	UseImageSpacingOff ()

virtual void	UseImageSpacingOn ()

Static Public Member Functions
static Pointer	New ()

Protected Member Functions
void	EnlargeOutputRequestedRegion (DataObject *output) override

void	GenerateData (void) override

	ParabolicErodeDilateImageFilter ()

void	PrintSelf (std::ostream &os, Indent indent) const override

int	SplitRequestedRegion (int i, int num, OutputImageRegionType &splitRegion)

void	ThreadedGenerateData (const OutputImageRegionType &outputRegionForThread, ThreadIdType threadId) override

	~ParabolicErodeDilateImageFilter () override

Protected Attributes
bool	m_UseImageSpacing

Private Member Functions
void	operator= (const Self &)

	ParabolicErodeDilateImageFilter (const Self &)

Private Attributes
int	m_CurrentDimension

TInputImage::PixelType	m_Extreme

int	m_MagnitudeSign

RadiusType	m_Scale