#include <itkDoubleThresholdImageFilter.h>

Inheritance diagram for itk::DoubleThresholdImageFilter< TInputImage, TOutputImage >:

Collaboration diagram for itk::DoubleThresholdImageFilter< TInputImage, TOutputImage >:

Public Types
typedef SmartPointer< const Self >	ConstPointer
typedef Superclass::InputImagePointer	InputImagePointer
typedef Superclass::InputImageType	InputImageType
typedef TInputImage::PixelType	InputPixelType
typedef TOutputImage::PixelType	OutputPixelType
typedef SmartPointer< Self >	Pointer
typedef DoubleThresholdImageFilter	Self
typedef ImageToImageFilter < TInputImage, TOutputImage >	Superclass
Public Member Functions
virtual ::itk::LightObject::Pointer	CreateAnother (void) const
virtual OutputPixelType	GetInsideValue () const
virtual const char *	GetNameOfClass () const
virtual OutputPixelType	GetOutsideValue () const
virtual void	SetInsideValue (OutputPixelType _arg)
virtual void	SetOutsideValue (OutputPixelType _arg)
	typedef (Concept::EqualityComparable< OutputPixelType >) OutputEqualityComparableCheck
	typedef (Concept::Comparable< InputPixelType >) InputComparableCheck
	typedef (Concept::OStreamWritable< InputPixelType >) InputOStreamWritableCheck
	typedef (Concept::OStreamWritable< OutputPixelType >) OutputOStreamWritableCheck

virtual void	SetThreshold1 (InputPixelType _arg)
virtual void	SetThreshold2 (InputPixelType _arg)
virtual void	SetThreshold3 (InputPixelType _arg)
virtual void	SetThreshold4 (InputPixelType _arg)

virtual InputPixelType	GetThreshold1 () const
virtual InputPixelType	GetThreshold2 () const
virtual InputPixelType	GetThreshold3 () const
virtual InputPixelType	GetThreshold4 () const

virtual void	SetFullyConnected (bool _arg)
virtual const bool &	GetFullyConnected ()
virtual void	FullyConnectedOn ()
virtual void	FullyConnectedOff ()
Static Public Member Functions
static Pointer	New ()
Protected Member Functions
void	EnlargeOutputRequestedRegion (DataObject *)
void	GenerateData ()
void	GenerateInputRequestedRegion ()

	DoubleThresholdImageFilter ()
virtual	~DoubleThresholdImageFilter ()
void	PrintSelf (std::ostream &os, Indent indent) const
Private Member Functions
	DoubleThresholdImageFilter (const Self &)
void	operator= (const Self &)
Private Attributes
bool	m_FullyConnected
OutputPixelType	m_InsideValue
unsigned long	m_NumberOfIterationsUsed
OutputPixelType	m_OutsideValue
InputPixelType	m_Threshold1
InputPixelType	m_Threshold2
InputPixelType	m_Threshold3
InputPixelType	m_Threshold4

Detailed Description

template<class TInputImage, class TOutputImage>
class itk::DoubleThresholdImageFilter< TInputImage, TOutputImage >

Binarize an input image using double thresholding.

Double threshold addresses the difficulty in selecting a threshold that will select the objects of interest without selecting extraneous objects. Double threshold considers two threshold ranges: a narrow range and a wide range (where the wide range encompasses the narrow range). If the wide range was used for a traditional threshold (where values inside the range map to the foreground and values outside the range map to the background), many extraneous pixels may survive the threshold operation. If the narrow range was used for a traditional threshold, then too few pixels may survive the threshold.

Double threshold uses the narrow threshold image as a marker image and the wide threshold image as a mask image in the geodesic dilation. Essentially, the marker image (narrow threshold) is dilated but constrained to lie within the mask image (wide threshold). Thus, only the objects of interest (those pixels that survived the narrow threshold) are extracted but the those objects appear in the final image as they would have if the wide threshold was used.

See also:: GrayscaleGeodesicDilateImageFilter; MorphologyImageFilter, GrayscaleDilateImageFilter, GrayscaleFunctionDilateImageFilter, BinaryDilateImageFilter

Definition at line 54 of file itkDoubleThresholdImageFilter.h.