itkHausdorffDistanceImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkHausdorffDistanceImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2003/09/10 14:28:50 $
  Version:   $Revision: 1.8 $

  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 __itkHausdorffDistanceImageFilter_h
#define __itkHausdorffDistanceImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkNumericTraits.h"

namespace itk {

template<class TInputImage1, class TInputImage2>
class ITK_EXPORT HausdorffDistanceImageFilter : 
    public ImageToImageFilter<TInputImage1, TInputImage1>
{
public:
  typedef HausdorffDistanceImageFilter Self;
  typedef ImageToImageFilter<TInputImage1,TInputImage1>  Superclass;
  typedef SmartPointer<Self>        Pointer;
  typedef SmartPointer<const Self>  ConstPointer;
  
  itkNewMacro(Self);  

  itkTypeMacro(HausdorffDistanceImageFilter, ImageToImageFilter);
  
  typedef TInputImage1 InputImage1Type;
  typedef TInputImage2 InputImage2Type;
  typedef typename TInputImage1::Pointer InputImage1Pointer;
  typedef typename TInputImage2::Pointer InputImage2Pointer;
  typedef typename TInputImage1::ConstPointer InputImage1ConstPointer;
  typedef typename TInputImage2::ConstPointer InputImage2ConstPointer;

  typedef typename TInputImage1::RegionType RegionType ;
  typedef typename TInputImage1::SizeType SizeType ;
  typedef typename TInputImage1::IndexType IndexType ;

  typedef typename TInputImage1::PixelType InputImage1PixelType;
  typedef typename TInputImage2::PixelType InputImage2PixelType;
  
  itkStaticConstMacro(ImageDimension, unsigned int,
                      TInputImage1::ImageDimension);

  typedef typename NumericTraits<InputImage1PixelType>::RealType RealType;

  void SetInput1( const InputImage1Type * image )
  { this->SetInput( image ); }

  void SetInput2( const InputImage2Type * image );

  const InputImage1Type * GetInput1(void)
  { return this->GetInput(); }
  
  const InputImage2Type * GetInput2(void);
  
  itkGetMacro(HausdorffDistance,RealType);

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

  // Override since the filter needs all the data for the algorithm
  void GenerateInputRequestedRegion();

  // Override since the filter produces all of its output
  void EnlargeOutputRequestedRegion(DataObject *data);

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

  RealType                            m_HausdorffDistance;

} ; // end of class

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

#endif

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