itkMultiplyImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkMultiplyImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2008-10-16 19:33:41 $
  Version:   $Revision: 1.26 $

  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 __itkMultiplyImageFilter_h
#define __itkMultiplyImageFilter_h

#include "itkBinaryFunctorImageFilter.h"

namespace itk
{
  
namespace Function {  

template< class TInput1, class TInput2=TInput1, class TOutput=TInput1>
class Mult
{
public:
  Mult() {}
  ~Mult() {}
  bool operator!=( const Mult & ) const
    {
    return false;
    }
  bool operator==( const Mult & other ) const
    {
    return !(*this != other);
    }
  inline TOutput operator()( const TInput1 & A, const TInput2 & B)
    { return (TOutput)(A * B); }
}; 
}

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

  itkNewMacro(Self);

  itkTypeMacro(MultiplyImageFilter, 
               BinaryFunctorImageFilter);

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(Input1Input2OutputMultiplyOperatorCheck,
    (Concept::MultiplyOperator<typename TInputImage1::PixelType,
                               typename TInputImage2::PixelType,
                               typename TOutputImage::PixelType>));

#endif

protected:
  MultiplyImageFilter() {}
  virtual ~MultiplyImageFilter() {}

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

};

} // end namespace itk


#endif