itkOptMorphologicalGradientImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkOptMorphologicalGradientImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2008-09-29 19:07:46 $
  Version:   $Revision: 1.4 $

  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 __itkOptMorphologicalGradientImageFilter_h
#define __itkOptMorphologicalGradientImageFilter_h

#include "itkKernelImageFilter.h"
#include "itkMovingHistogramMorphologicalGradientImageFilter.h"
#include "itkBasicDilateImageFilter.h"
#include "itkBasicErodeImageFilter.h"
#include "itkAnchorErodeImageFilter.h"
#include "itkAnchorDilateImageFilter.h"
#include "itkVanHerkGilWermanDilateImageFilter.h"
#include "itkVanHerkGilWermanErodeImageFilter.h"
#include "itkSubtractImageFilter.h"
#include "itkConstantBoundaryCondition.h"
#include "itkFlatStructuringElement.h"
#include "itkNeighborhood.h"

namespace itk {

template<class TInputImage, class TOutputImage, class TKernel>
class ITK_EXPORT MorphologicalGradientImageFilter : 
    public KernelImageFilter<TInputImage, TOutputImage, TKernel>
{
public:
  typedef MorphologicalGradientImageFilter                      Self;
  typedef KernelImageFilter<TInputImage,TOutputImage, TKernel>  Superclass;
  typedef SmartPointer<Self>                                    Pointer;
  typedef SmartPointer<const Self>                              ConstPointer;

  itkNewMacro(Self);  

  itkTypeMacro(MorphologicalGradientImageFilter, 
               KernelImageFilter);

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

  typedef TInputImage                                           InputImageType;
  typedef TOutputImage                                          OutputImageType;
  typedef typename TInputImage::RegionType                      RegionType;
  typedef typename TInputImage::SizeType                        SizeType;
  typedef typename TInputImage::IndexType                       IndexType;
  typedef typename TInputImage::PixelType                       PixelType;
  typedef typename TInputImage::OffsetType                      OffsetType;
  typedef typename Superclass::OutputImageRegionType            OutputImageRegionType;

  typedef FlatStructuringElement< itkGetStaticConstMacro(ImageDimension) >
                                                                FlatKernelType;
  typedef MovingHistogramMorphologicalGradientImageFilter< TInputImage, TOutputImage, TKernel >
                                                                HistogramFilterType;
  typedef BasicDilateImageFilter< TInputImage, TInputImage, TKernel >
                                                                BasicDilateFilterType;
  typedef BasicErodeImageFilter< TInputImage, TInputImage, TKernel >
                                                                BasicErodeFilterType;
  typedef AnchorDilateImageFilter< TInputImage, FlatKernelType >
                                                                AnchorDilateFilterType;
  typedef AnchorErodeImageFilter< TInputImage, FlatKernelType > AnchorErodeFilterType;
  typedef VanHerkGilWermanDilateImageFilter< TInputImage, FlatKernelType >
                                                                VHGWDilateFilterType;
  typedef VanHerkGilWermanErodeImageFilter< TInputImage, FlatKernelType > 
                                                                VHGWErodeFilterType;
  typedef SubtractImageFilter< TInputImage, TInputImage, TOutputImage >
                                                                SubtractFilterType;
  
  typedef TKernel                                               KernelType;
//   typedef typename KernelType::Superclass KernelSuperClass;
//   typedef Neighborhood< typename KernelType::PixelType, ImageDimension > KernelSuperClass;

  void SetKernel( const KernelType& kernel );

  void SetAlgorithm(int algo );
  itkGetMacro(Algorithm, int);

  virtual void Modified() const;

  enum {
    BASIC = 0,
    HISTO = 1,
    ANCHOR = 2,
    VHGW = 3
  } AlgorithmChoice;


protected:
  MorphologicalGradientImageFilter();
  ~MorphologicalGradientImageFilter() {};
  void PrintSelf(std::ostream& os, Indent indent) const;
  
  void GenerateData();

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

  // the filters used internally
  typename HistogramFilterType::Pointer    m_HistogramFilter;
  typename BasicDilateFilterType::Pointer  m_BasicDilateFilter;
  typename BasicErodeFilterType::Pointer   m_BasicErodeFilter;
  typename AnchorDilateFilterType::Pointer m_AnchorDilateFilter;
  typename AnchorErodeFilterType::Pointer  m_AnchorErodeFilter;
  typename VHGWDilateFilterType::Pointer   m_VanHerkGilWermanDilateFilter;
  typename VHGWErodeFilterType::Pointer    m_VanHerkGilWermanErodeFilter;

  // and the name of the filter
  int                                      m_Algorithm;

}; // end of class

} // end namespace itk
  
#ifndef ITK_MANUAL_INSTANTIATION
#include "itkOptMorphologicalGradientImageFilter.txx"
#endif

#endif

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