itkAdaptiveHistogramEqualizationImageFilter.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkAdaptiveHistogramEqualizationImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2009-04-25 12:27:02 $
  Version:   $Revision: 1.23 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even 
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 
     PURPOSE.  See the above copyright notices for more information.

=========================================================================*/
#ifndef __itkAdaptiveHistogramEqualizationImageFilter_h
#define __itkAdaptiveHistogramEqualizationImageFilter_h


// First make sure that the configuration is available.
// This line can be removed once the optimized versions
// gets integrated into the main directories.
#include "itkConfigure.h"

#ifdef ITK_USE_CONSOLIDATED_MORPHOLOGY
#include "itkOptAdaptiveHistogramEqualizationImageFilter.h"
#else


#include <itkImageToImageFilter.h>
#include <itkImage.h>

namespace itk
{
template <class TImageType>
class ITK_EXPORT AdaptiveHistogramEqualizationImageFilter :
    public ImageToImageFilter< TImageType, TImageType >
{
public:
  typedef AdaptiveHistogramEqualizationImageFilter     Self;
  typedef ImageToImageFilter< TImageType, TImageType > Superclass;
  typedef SmartPointer<Self>                           Pointer;
  typedef SmartPointer<const Self>                     ConstPointer;

  itkStaticConstMacro(ImageDimension, unsigned int,
                      TImageType::ImageDimension );

  itkNewMacro(Self);

  itkTypeMacro(AdaptiveHistogramEqualizationImageFilter, ImageToImageFilter);

  typedef TImageType                   ImageType;
  typedef typename ImageType::SizeType ImageSizeType;

  itkSetMacro(Alpha, float);
  itkGetConstMacro(Alpha, float);

  itkSetMacro(Beta, float);
  itkGetConstMacro(Beta, float);

  itkSetMacro(Radius, ImageSizeType);
  itkGetConstReferenceMacro(Radius, ImageSizeType);

  itkSetMacro(UseLookupTable, bool);
  itkGetConstMacro(UseLookupTable, bool);
  itkBooleanMacro(UseLookupTable);

protected:
  AdaptiveHistogramEqualizationImageFilter()
    {
    m_Alpha = .3;
    m_Beta = .3;
    m_Radius.Fill( 5 );
    m_UseLookupTable = false;
    }
  virtual ~AdaptiveHistogramEqualizationImageFilter(){}
  void PrintSelf(std::ostream& os, Indent indent) const;

  void GenerateData();

  void GenerateInputRequestedRegion();

private:
  AdaptiveHistogramEqualizationImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented

  float m_Alpha;

  float m_Beta;

  ImageSizeType m_Radius;

  bool m_UseLookupTable;

  float CumulativeFunction(float u, float v);

};

} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkAdaptiveHistogramEqualizationImageFilter.txx"
#endif

#endif

#endif

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