itkMinimumImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkMinimumImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2003/12/03 15:36:43 $
  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 __itkMinimumImageFilter_h
#define __itkMinimumImageFilter_h

#include "itkBinaryFunctorImageFilter.h"

namespace itk
{
  
namespace Function {  

template< class TInput1, class TInput2, class TOutput>
class Minimum
{
public:
  Minimum() {}
  ~Minimum() {}
  inline TOutput operator()( const TInput1 & A, const TInput2 & B)
  { return static_cast<TOutput>( (A < B)? A : B ); }
}; 
}

template <class TInputImage1, class TInputImage2, class TOutputImage>
class ITK_EXPORT MinimumImageFilter :
    public
BinaryFunctorImageFilter<TInputImage1,TInputImage2,TOutputImage, 
                         Function::Minimum< 
  typename TInputImage1::PixelType, 
  typename TInputImage2::PixelType,
  typename TOutputImage::PixelType>   >
{
public:
  typedef MinimumImageFilter  Self;
  typedef BinaryFunctorImageFilter<TInputImage1,TInputImage2,TOutputImage, 
                                   Function::Minimum< 
    typename TInputImage1::PixelType, 
    typename TInputImage2::PixelType,
    typename TOutputImage::PixelType>   
  > Superclass;
  typedef SmartPointer<Self>   Pointer;
  typedef SmartPointer<const Self>  ConstPointer;

  itkNewMacro(Self);
  
protected:
  MinimumImageFilter() {}
  virtual ~MinimumImageFilter() {}

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

};

} // end namespace itk


#endif

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