itkMatrixIndexSelectionImageFilter.h

Go to the documentation of this file.

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkMatrixIndexSelectionImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2005/10/06 19:56:10 $
  Version:   $Revision: 1.1 $

  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 __itkMatrixIndexSelectionImageFilter_h
#define __itkMatrixIndexSelectionImageFilter_h

#include "itkUnaryFunctorImageFilter.h"

namespace itk
{
  
namespace Functor {  
  
template< class TInput, class TOutput>
class MatrixIndexSelection
{
public:
  MatrixIndexSelection() {m_i = m_j = 0;}
  ~MatrixIndexSelection() {}

  void GetIndices(unsigned int& i, unsigned int& j) const {i= m_i; j=m_j;}
  void SetIndices(unsigned int i,unsigned int j) {m_i= i; m_j =j;}

  inline TOutput operator()( const TInput & A )
  {
    return static_cast<TOutput>( A[m_i][m_j] );
  }
      
private:
  unsigned int m_i, m_j;;   
}; 
}

template <class TInputImage, class TOutputImage>
class ITK_EXPORT MatrixIndexSelectionImageFilter :
    public
UnaryFunctorImageFilter<TInputImage,TOutputImage,Functor::MatrixIndexSelection< typename TInputImage::PixelType,typename TOutputImage::PixelType> >
{
public:
  typedef MatrixIndexSelectionImageFilter Self;
  typedef UnaryFunctorImageFilter<TInputImage,TOutputImage,Functor::MatrixIndexSelection<typename TInputImage::PixelType,typename TOutputImage::PixelType> > Superclass;
  typedef SmartPointer<Self> Pointer;
  typedef SmartPointer<const Self> ConstPointer;
    
  itkNewMacro(Self);

  void SetIndices(unsigned int i, unsigned int j)
    {
    this->GetFunctor().SetIndices(i,j);
    this->Modified();
    }

  void GetIndices(unsigned int& i, unsigned int& j) const
    { return this->GetFunctor().GetIndices(i,j); }

protected:
  MatrixIndexSelectionImageFilter() {}
  virtual ~MatrixIndexSelectionImageFilter() {}
    
private:
  MatrixIndexSelectionImageFilter(const Self&); //purposely not implemented
  void operator=(const Self&); //purposely not implemented
};
 
} // end namespace itk


#endif

---