mitk::HistogramMatching Class Reference

This class performes a histogram matching between the fixed image and moving image to improve the registration results. More...

#include <mitkHistogramMatching.h>

Inheritance diagram for mitk::HistogramMatching:

Collaboration diagram for mitk::HistogramMatching:

List of all members.

Public Types
typedef HistogramMatching	Self
typedef RegistrationBase	Superclass
typedef itk::SmartPointer< Self >	Pointer
typedef itk::SmartPointer < const Self >	ConstPointer
Public Member Functions
virtual const char *	GetClassName () const
void	SetNumberOfMatchPoints (int matchPoints)
	Sets the number of match points for the histogram generation.
void	SetNumberOfHistogramLevels (int histogrammLevels)
	Sets the number of histogram levels for the histogram generation.
void	SetThresholdAtMeanIntensity (bool on)
	Sets whether a threshold at mean intensity should be used for the histogram generation.
virtual void	GenerateData ()
	Starts the histogram matching.
Static Public Member Functions
static Pointer	New ()
	Method for creation through the object factory.
Protected Member Functions
	HistogramMatching ()
	Default constructor.
virtual	~HistogramMatching ()
	Default destructor.
template<typename TPixel , unsigned int VImageDimension>
void	GenerateData2 (itk::Image< TPixel, VImageDimension > *itkImage1)
	Template class to perform the histogram matching with any kind of image. Called by GenerateData().
Protected Attributes
bool	m_ThresholdAtMeanIntensity
int	m_NumberOfHistogramLevels
int	m_NumberOfMatchPoints

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Detailed Description

This class performes a histogram matching between the fixed image and moving image to improve the registration results.

Author:

Daniel Stein

Definition at line 38 of file mitkHistogramMatching.h.

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Member Typedef Documentation

typedef itk::SmartPointer<const Self> mitk::HistogramMatching::ConstPointer

Reimplemented from mitk::RegistrationBase.

Definition at line 42 of file mitkHistogramMatching.h.

typedef itk::SmartPointer<Self> mitk::HistogramMatching::Pointer

Reimplemented from mitk::RegistrationBase.

Definition at line 42 of file mitkHistogramMatching.h.

typedef HistogramMatching mitk::HistogramMatching::Self

Reimplemented from mitk::RegistrationBase.

Definition at line 42 of file mitkHistogramMatching.h.

typedef RegistrationBase mitk::HistogramMatching::Superclass

Reimplemented from mitk::RegistrationBase.

Definition at line 42 of file mitkHistogramMatching.h.

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Constructor & Destructor Documentation

mitk::HistogramMatching::HistogramMatching

(

)

[protected]

Default constructor.

Definition at line 21 of file mitkHistogramMatching.cpp.

References m_NumberOfHistogramLevels, m_NumberOfMatchPoints, and m_ThresholdAtMeanIntensity.

  {
    m_ThresholdAtMeanIntensity = true;
    m_NumberOfHistogramLevels = 1024;
    m_NumberOfMatchPoints = 7;

mitk::HistogramMatching::~HistogramMatching

(

)

[protected, virtual]

Default destructor.

Definition at line 28 of file mitkHistogramMatching.cpp.

  {

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Member Function Documentation

virtual void mitk::HistogramMatching::GenerateData

(

)

[inline, virtual]

Starts the histogram matching.

Reimplemented from mitk::ImageSource.

Definition at line 67 of file mitkHistogramMatching.h.

References AccessByItk.

    {
      if (this->GetInput())
      {
        AccessByItk(this->GetInput(), GenerateData2);
      }
    }

template<typename TPixel , unsigned int VImageDimension>

void mitk::HistogramMatching::GenerateData2

(

itk::Image< TPixel, VImageDimension > *

itkImage1 )

[protected]

Template class to perform the histogram matching with any kind of image. Called by GenerateData().

Definition at line 48 of file mitkHistogramMatching.cpp.

References mitk::CastToItkImage(), mitk::CastToMitkImage(), mitk::ImageSource::GetOutput(), m_NumberOfHistogramLevels, m_NumberOfMatchPoints, mitk::RegistrationBase::m_ReferenceImage, m_ThresholdAtMeanIntensity, and New().

  {
    typedef typename itk::Image< TPixel, VImageDimension >  FixedImageType;
    typedef typename itk::Image< TPixel, VImageDimension >  MovingImageType;

    typedef float InternalPixelType;
    typedef typename itk::Image< InternalPixelType, VImageDimension > InternalImageType;
    typedef typename itk::CastImageFilter< FixedImageType, 
                                InternalImageType > FixedImageCasterType;
    typedef typename itk::CastImageFilter< MovingImageType, 
                                InternalImageType > MovingImageCasterType;
    typedef typename itk::HistogramMatchingImageFilter<
                                    InternalImageType,
                                    InternalImageType >   MatchingFilterType;

    typename FixedImageType::Pointer fixedImage = FixedImageType::New();
    mitk::CastToItkImage(m_ReferenceImage, fixedImage);
    typename MovingImageType::Pointer movingImage = itkImage1;
    if (fixedImage.IsNotNull() && movingImage.IsNotNull())
    {
      typename FixedImageCasterType::Pointer fixedImageCaster = FixedImageCasterType::New();
      fixedImageCaster->SetInput(fixedImage);
      typename MovingImageCasterType::Pointer movingImageCaster = MovingImageCasterType::New();
      movingImageCaster->SetInput(movingImage);
      typename MatchingFilterType::Pointer matcher = MatchingFilterType::New();
      matcher->SetInput( movingImageCaster->GetOutput() );
      matcher->SetReferenceImage( fixedImageCaster->GetOutput() );
      matcher->SetNumberOfHistogramLevels( m_NumberOfHistogramLevels );
      matcher->SetNumberOfMatchPoints( m_NumberOfMatchPoints );
      matcher->SetThresholdAtMeanIntensity(m_ThresholdAtMeanIntensity);
      matcher->Update();
      Image::Pointer outputImage = this->GetOutput();
      mitk::CastToMitkImage( matcher->GetOutput(), outputImage );
    }

virtual const char* mitk::HistogramMatching::GetClassName

(

)

const [virtual]

Reimplemented from mitk::RegistrationBase.

static Pointer mitk::HistogramMatching::New

(

)

[static]

Method for creation through the object factory.

Reimplemented from mitk::RegistrationBase.

Referenced by QmitkDemonsRegistrationView::CalculateTransformation(), GenerateData2(), and mitkHistogramMatchingTest().

void mitk::HistogramMatching::SetNumberOfHistogramLevels

(

int

histogrammLevels )

Sets the number of histogram levels for the histogram generation.

Definition at line 32 of file mitkHistogramMatching.cpp.

References m_NumberOfHistogramLevels.

  {
    m_NumberOfHistogramLevels = histogrammLevels;

void mitk::HistogramMatching::SetNumberOfMatchPoints

(

int

matchPoints )

Sets the number of match points for the histogram generation.

Definition at line 37 of file mitkHistogramMatching.cpp.

References m_NumberOfMatchPoints.

  {
    m_NumberOfMatchPoints = matchPoints;

void mitk::HistogramMatching::SetThresholdAtMeanIntensity

(

bool

on )

Sets whether a threshold at mean intensity should be used for the histogram generation.

Definition at line 42 of file mitkHistogramMatching.cpp.

References m_ThresholdAtMeanIntensity.

  {
    m_ThresholdAtMeanIntensity = on;

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Member Data Documentation

int mitk::HistogramMatching::m_NumberOfHistogramLevels [protected]

Definition at line 94 of file mitkHistogramMatching.h.

Referenced by GenerateData2(), HistogramMatching(), and SetNumberOfHistogramLevels().

int mitk::HistogramMatching::m_NumberOfMatchPoints [protected]

Definition at line 95 of file mitkHistogramMatching.h.

Referenced by GenerateData2(), HistogramMatching(), and SetNumberOfMatchPoints().

bool mitk::HistogramMatching::m_ThresholdAtMeanIntensity [protected]

Definition at line 93 of file mitkHistogramMatching.h.

Referenced by GenerateData2(), HistogramMatching(), and SetThresholdAtMeanIntensity().

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

• mitkHistogramMatching.h
• mitkHistogramMatching.cpp