SimpleITK  1.3.0.dev466
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itk::simple::AdaptiveHistogramEqualizationImageFilter Class Reference

Power Law Adaptive Histogram Equalization. More...

#include <sitkAdaptiveHistogramEqualizationImageFilter.h>

+ Inheritance diagram for itk::simple::AdaptiveHistogramEqualizationImageFilter:
+ Collaboration diagram for itk::simple::AdaptiveHistogramEqualizationImageFilter:

Public Types

typedef BasicPixelIDTypeList PixelIDTypeList
 
typedef AdaptiveHistogramEqualizationImageFilter Self
 
- Public Types inherited from itk::simple::ImageFilter< 1 >
typedef ImageFilter Self
 
- Public Types inherited from itk::simple::ProcessObject
typedef ProcessObject Self
 

Public Member Functions

 AdaptiveHistogramEqualizationImageFilter ()
 
Image Execute (const Image &image1)
 
Image Execute (const Image &image1, const std::vector< unsigned int > &radius, float alpha, float beta)
 
float GetAlpha () const
 
float GetBeta () const
 
std::string GetName () const
 
std::vector< unsigned int > GetRadius () const
 
SelfSetAlpha (float Alpha)
 
SelfSetBeta (float Beta)
 
SelfSetRadius (const std::vector< unsigned int > &Radius)
 
SelfSetRadius (unsigned int value)
 
std::string ToString () const
 
virtual ~AdaptiveHistogramEqualizationImageFilter ()
 
- Public Member Functions inherited from itk::simple::ImageFilter< 1 >
 ImageFilter ()
 
virtual ~ImageFilter ()=0
 
- Public Member Functions inherited from itk::simple::ProcessObject
virtual void Abort ()
 
virtual int AddCommand (itk::simple::EventEnum event, itk::simple::Command &cmd)
 Add a Command Object to observer the event. More...
 
virtual float GetProgress () const
 An Active Measurement of the progress of execution. More...
 
virtual bool HasCommand (itk::simple::EventEnum event) const
 Query of this object has any registered commands for event. More...
 
 ProcessObject ()
 
virtual void RemoveAllCommands ()
 Remove all registered commands. More...
 
virtual ~ProcessObject ()
 
virtual void DebugOn ()
 
virtual void DebugOff ()
 
virtual bool GetDebug () const
 
virtual void SetDebug (bool debugFlag)
 
virtual void SetNumberOfThreads (unsigned int n)
 
virtual unsigned int GetNumberOfThreads () const
 

Private Types

typedef Image(Self::* MemberFunctionType) (const Image &image1)
 

Private Member Functions

template<class TImageType >
Image ExecuteInternal (const Image &image1)
 

Private Attributes

float m_Alpha
 
float m_Beta
 
nsstd::auto_ptr< detail::MemberFunctionFactory< MemberFunctionType > > m_MemberFactory
 
std::vector< unsigned int > m_Radius
 

Friends

struct detail::MemberFunctionAddressor< MemberFunctionType >
 

Additional Inherited Members

- Static Public Member Functions inherited from itk::simple::ProcessObject
static bool GetGlobalDefaultDebug ()
 
static void GlobalDefaultDebugOff ()
 
static void GlobalDefaultDebugOn ()
 
static void SetGlobalDefaultDebug (bool debugFlag)
 
static void GlobalWarningDisplayOn ()
 
static void GlobalWarningDisplayOff ()
 
static void SetGlobalWarningDisplay (bool flag)
 
static bool GetGlobalWarningDisplay ()
 
static void SetGlobalDefaultNumberOfThreads (unsigned int n)
 
static unsigned int GetGlobalDefaultNumberOfThreads ()
 
static double GetGlobalDefaultCoordinateTolerance ()
 Access the global tolerance to determine congruent spaces. More...
 
static void SetGlobalDefaultCoordinateTolerance (double)
 Access the global tolerance to determine congruent spaces. More...
 
static double GetGlobalDefaultDirectionTolerance ()
 Access the global tolerance to determine congruent spaces. More...
 
static void SetGlobalDefaultDirectionTolerance (double)
 Access the global tolerance to determine congruent spaces. More...
 
- Protected Member Functions inherited from itk::simple::ProcessObject
virtual unsigned long AddITKObserver (const itk::EventObject &, itk::Command *)
 
virtual itk::ProcessObjectGetActiveProcess ()
 
virtual void OnActiveProcessDelete ()
 
virtual void onCommandDelete (const itk::simple::Command *cmd) SITK_NOEXCEPT
 
virtual void PreUpdate (itk::ProcessObject *p)
 
virtual void RemoveITKObserver (EventCommand &e)
 
- Protected Member Functions inherited from itk::simple::NonCopyable
 NonCopyable ()
 
- Static Protected Member Functions inherited from itk::simple::ImageFilter< 1 >
static void FixNonZeroIndex (TImageType *img)
 
- Static Protected Member Functions inherited from itk::simple::ProcessObject
template<class TImageType >
static TImageType::ConstPointer CastImageToITK (const Image &img)
 
template<class TImageType >
static Image CastITKToImage (TImageType *img)
 
template<class TPixelType , unsigned int VImageDimension, unsigned int VLength, template< typename, unsigned int > class TVector>
static Image CastITKToImage (itk::Image< TVector< TPixelType, VLength >, VImageDimension > *img)
 
static const itk::EventObjectGetITKEventObject (EventEnum e)
 
template<typename T >
static std::ostream & ToStringHelper (std::ostream &os, const T &v)
 
static std::ostream & ToStringHelper (std::ostream &os, const char &v)
 
static std::ostream & ToStringHelper (std::ostream &os, const signed char &v)
 
static std::ostream & ToStringHelper (std::ostream &os, const unsigned char &v)
 

Detailed Description

Power Law Adaptive Histogram Equalization.

Histogram equalization modifies the contrast in an image. The AdaptiveHistogramEqualizationImageFilter is a superset of many contrast enhancing filters. By modifying its parameters (alpha, beta, and window), the AdaptiveHistogramEqualizationImageFilter can produce an adaptively equalized histogram or a version of unsharp mask (local mean subtraction). Instead of applying a strict histogram equalization in a window about a pixel, this filter prescribes a mapping function (power law) controlled by the parameters alpha and beta.

The parameter alpha controls how much the filter acts like the classical histogram equalization method (alpha=0) to how much the filter acts like an unsharp mask (alpha=1).

The parameter beta controls how much the filter acts like an unsharp mask (beta=0) to much the filter acts like pass through (beta=1, with alpha=1).

The parameter window controls the size of the region over which local statistics are calculated.

By altering alpha, beta and window, a host of equalization and unsharp masking filters is available.

The boundary condition ignores the part of the neighborhood outside the image, and over-weights the valid part of the neighborhood.

For detail description, reference "Adaptive Image Contrast Enhancement using Generalizations of Histogram Equalization." J.Alex Stark. IEEE Transactions on Image Processing, May 2000.

See also
itk::simple::AdaptiveHistogramEqualization for the procedural interface
itk::AdaptiveHistogramEqualizationImageFilter for the Doxygen on the original ITK class.

Definition at line 55 of file sitkAdaptiveHistogramEqualizationImageFilter.h.

Member Typedef Documentation

typedef Image(Self::* itk::simple::AdaptiveHistogramEqualizationImageFilter::MemberFunctionType) (const Image &image1)
private

Setup for member function dispatching

Definition at line 120 of file sitkAdaptiveHistogramEqualizationImageFilter.h.

Define the pixels types supported by this filter

Definition at line 67 of file sitkAdaptiveHistogramEqualizationImageFilter.h.

Constructor & Destructor Documentation

virtual itk::simple::AdaptiveHistogramEqualizationImageFilter::~AdaptiveHistogramEqualizationImageFilter ( )
virtual

Destructor

itk::simple::AdaptiveHistogramEqualizationImageFilter::AdaptiveHistogramEqualizationImageFilter ( )

Default Constructor that takes no arguments and initializes default parameters

Member Function Documentation

Image itk::simple::AdaptiveHistogramEqualizationImageFilter::Execute ( const Image image1)

Execute the filter on the input image

Image itk::simple::AdaptiveHistogramEqualizationImageFilter::Execute ( const Image image1,
const std::vector< unsigned int > &  radius,
float  alpha,
float  beta 
)

Execute the filter on the input image with the given parameters

template<class TImageType >
Image itk::simple::AdaptiveHistogramEqualizationImageFilter::ExecuteInternal ( const Image image1)
private
float itk::simple::AdaptiveHistogramEqualizationImageFilter::GetAlpha ( ) const
inline

Set/Get the value of alpha. Alpha = 0 produces the adaptive histogram equalization (provided beta=0). Alpha = 1 produces an unsharp mask. Default is 0.3.

Definition at line 91 of file sitkAdaptiveHistogramEqualizationImageFilter.h.

float itk::simple::AdaptiveHistogramEqualizationImageFilter::GetBeta ( ) const
inline

Set/Get the value of beta. If beta = 1 (and alpha = 1), then the output image matches the input image. As beta approaches 0, the filter behaves as an unsharp mask. Default is 0.3.

Definition at line 101 of file sitkAdaptiveHistogramEqualizationImageFilter.h.

std::string itk::simple::AdaptiveHistogramEqualizationImageFilter::GetName ( ) const
inlinevirtual

Name of this class

Implements itk::simple::ProcessObject.

Definition at line 103 of file sitkAdaptiveHistogramEqualizationImageFilter.h.

std::vector<unsigned int> itk::simple::AdaptiveHistogramEqualizationImageFilter::GetRadius ( ) const
inline
Self& itk::simple::AdaptiveHistogramEqualizationImageFilter::SetAlpha ( float  Alpha)
inline

Set/Get the value of alpha. Alpha = 0 produces the adaptive histogram equalization (provided beta=0). Alpha = 1 produces an unsharp mask. Default is 0.3.

Definition at line 86 of file sitkAdaptiveHistogramEqualizationImageFilter.h.

Self& itk::simple::AdaptiveHistogramEqualizationImageFilter::SetBeta ( float  Beta)
inline

Set/Get the value of beta. If beta = 1 (and alpha = 1), then the output image matches the input image. As beta approaches 0, the filter behaves as an unsharp mask. Default is 0.3.

Definition at line 96 of file sitkAdaptiveHistogramEqualizationImageFilter.h.

Self& itk::simple::AdaptiveHistogramEqualizationImageFilter::SetRadius ( const std::vector< unsigned int > &  Radius)
inline
Self& itk::simple::AdaptiveHistogramEqualizationImageFilter::SetRadius ( unsigned int  value)
inline

Set the values of the Radius vector all to value

Definition at line 76 of file sitkAdaptiveHistogramEqualizationImageFilter.h.

std::string itk::simple::AdaptiveHistogramEqualizationImageFilter::ToString ( ) const
virtual

Print ourselves out

Reimplemented from itk::simple::ProcessObject.

Friends And Related Function Documentation

Member Data Documentation

float itk::simple::AdaptiveHistogramEqualizationImageFilter::m_Alpha
private
float itk::simple::AdaptiveHistogramEqualizationImageFilter::m_Beta
private
nsstd::auto_ptr<detail::MemberFunctionFactory<MemberFunctionType> > itk::simple::AdaptiveHistogramEqualizationImageFilter::m_MemberFactory
private
std::vector<unsigned int> itk::simple::AdaptiveHistogramEqualizationImageFilter::m_Radius
private

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