itk::OtsuThresholdImageCalculator< TInputImage > Class Template Reference
[Operators]

Computes the Otsu's threshold for an image. More...

#include <itkOtsuThresholdImageCalculator.h>

Inheritance diagram for itk::OtsuThresholdImageCalculator< TInputImage >:

[legend]Collaboration diagram for itk::OtsuThresholdImageCalculator< TInputImage >:

[legend]List of all members.

Public Types
typedef OtsuThresholdImageCalculator	Self
typedef Object	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef TInputImage	ImageType
typedef TInputImage::Pointer	ImagePointer
typedef TInputImage::ConstPointer	ImageConstPointer
typedef TInputImage::PixelType	PixelType
Public Member Functions
virtual const char *	GetNameOfClass () const
virtual void	SetImage (const ImageType *_arg)
void	Compute (void)
virtual PixelType	GetThreshold ()
virtual void	SetNumberOfHistogramBins (unsigned long _arg)
virtual unsigned long	GetNumberOfHistogramBins ()
Static Public Member Functions
Pointer	New ()
Protected Member Functions
	OtsuThresholdImageCalculator ()
virtual	~OtsuThresholdImageCalculator ()
void	PrintSelf (std::ostream &os, Indent indent) const

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Detailed Description

template<class TInputImage>
class itk::OtsuThresholdImageCalculator< TInputImage >

Computes the Otsu's threshold for an image.

This calculator computes the Otsu's threshold which separates an image into foreground and background components. The method relies on a histogram of image intensities. The basic idea is to maximize the between-class variance.

This class is templated over the input image type.

Warning:

This method assumes that the input image consists of scalar pixel types.

Definition at line 43 of file itkOtsuThresholdImageCalculator.h.

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Member Typedef Documentation

template<class TInputImage> typedef SmartPointer<const Self> itk::OtsuThresholdImageCalculator< TInputImage >::ConstPointer

Reimplemented from itk::Object. Definition at line 50 of file itkOtsuThresholdImageCalculator.h.

template<class TInputImage> typedef TInputImage::ConstPointer itk::OtsuThresholdImageCalculator< TInputImage >::ImageConstPointer

Const Pointer type for the image. Definition at line 65 of file itkOtsuThresholdImageCalculator.h. Referenced by itk::OtsuThresholdImageCalculator< TInputImage >::~OtsuThresholdImageCalculator().

template<class TInputImage> typedef TInputImage::Pointer itk::OtsuThresholdImageCalculator< TInputImage >::ImagePointer

Pointer type for the image. Definition at line 62 of file itkOtsuThresholdImageCalculator.h.

template<class TInputImage> typedef TInputImage itk::OtsuThresholdImageCalculator< TInputImage >::ImageType

Type definition for the input image. Definition at line 59 of file itkOtsuThresholdImageCalculator.h.

template<class TInputImage> typedef TInputImage::PixelType itk::OtsuThresholdImageCalculator< TInputImage >::PixelType

Type definition for the input image pixel type. Definition at line 68 of file itkOtsuThresholdImageCalculator.h. Referenced by itk::OtsuThresholdImageCalculator< TInputImage >::~OtsuThresholdImageCalculator().

template<class TInputImage> typedef SmartPointer<Self> itk::OtsuThresholdImageCalculator< TInputImage >::Pointer

Reimplemented from itk::Object. Definition at line 49 of file itkOtsuThresholdImageCalculator.h.

template<class TInputImage> typedef OtsuThresholdImageCalculator itk::OtsuThresholdImageCalculator< TInputImage >::Self

Standard class typedefs. Reimplemented from itk::Object. Definition at line 47 of file itkOtsuThresholdImageCalculator.h. Referenced by itk::OtsuThresholdImageCalculator< TInputImage >::~OtsuThresholdImageCalculator().

template<class TInputImage> typedef Object itk::OtsuThresholdImageCalculator< TInputImage >::Superclass

Reimplemented from itk::Object. Definition at line 48 of file itkOtsuThresholdImageCalculator.h.

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Constructor & Destructor Documentation

template<class TInputImage> itk::OtsuThresholdImageCalculator< TInputImage >::OtsuThresholdImageCalculator (   )  [protected]

template<class TInputImage> virtual itk::OtsuThresholdImageCalculator< TInputImage >::~OtsuThresholdImageCalculator (   )  [inline, protected, virtual]

Definition at line 87 of file itkOtsuThresholdImageCalculator.h. References itk::OtsuThresholdImageCalculator< TInputImage >::ImageConstPointer, itk::OtsuThresholdImageCalculator< TInputImage >::PixelType, and itk::OtsuThresholdImageCalculator< TInputImage >::Self.

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Member Function Documentation

template<class TInputImage> void itk::OtsuThresholdImageCalculator< TInputImage >::Compute (  void   )

Compute the Otsu's threshold for the input image.

template<class TInputImage> virtual const char* itk::OtsuThresholdImageCalculator< TInputImage >::GetNameOfClass (   )  const [virtual]

Run-time type information (and related methods). Reimplemented from itk::Object.

template<class TInputImage> virtual unsigned long itk::OtsuThresholdImageCalculator< TInputImage >::GetNumberOfHistogramBins (   )  [virtual]

Set/Get the number of histogram bins. Default is 128.

template<class TInputImage> virtual PixelType itk::OtsuThresholdImageCalculator< TInputImage >::GetThreshold (   )  [virtual]

Return the Otsu's threshold value.

template<class TInputImage> Pointer itk::OtsuThresholdImageCalculator< TInputImage >::New (   )  [static]

Method for creation through the object factory. Reimplemented from itk::Object.

template<class TInputImage> void itk::OtsuThresholdImageCalculator< TInputImage >::PrintSelf (  std::ostream &  os, Indent  indent )  const [protected, virtual]

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<class TInputImage> virtual void itk::OtsuThresholdImageCalculator< TInputImage >::SetImage (  const ImageType *  _arg  )  [virtual]

Set the input image.

template<class TInputImage> virtual void itk::OtsuThresholdImageCalculator< TInputImage >::SetNumberOfHistogramBins (  unsigned long  _arg  )  [virtual]

Set/Get the number of histogram bins. Default is 128.

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

• itkOtsuThresholdImageCalculator.h

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