itkInterpolateImageFilter.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkInterpolateImageFilter.h,v $
  Language:  C++
  Date:      $Date: 2009-04-25 12:27:27 $
  Version:   $Revision: 1.10 $

  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 __itkInterpolateImageFilter_h
#define __itkInterpolateImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkImage.h"
#include "itkInterpolateImageFunction.h"
#include "itkLinearInterpolateImageFunction.h"

namespace itk
{

template < class TInputImage, class TOutputImage >
class ITK_EXPORT InterpolateImageFilter:
    public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  typedef InterpolateImageFilter                        Self;
  typedef ImageToImageFilter<TInputImage,TOutputImage>  Superclass;
  typedef SmartPointer<Self>                            Pointer;
  typedef SmartPointer<const Self>                      ConstPointer;

  itkNewMacro(Self);  

  itkTypeMacro(InterpolateImageFilter, ImageToImageFilter);

  typedef typename Superclass::InputImageType        InputImageType;
  typedef typename Superclass::InputImagePointer     InputImagePointer;
  typedef typename Superclass::OutputImageType       OutputImageType;
  typedef typename Superclass::OutputImagePointer    OutputImagePointer;
  typedef typename Superclass::OutputImageRegionType OutputImageRegionType;

  itkStaticConstMacro(ImageDimension, unsigned int,
                      TOutputImage::ImageDimension);
  itkStaticConstMacro(IntermediateImageDimension, unsigned int,
                      TOutputImage::ImageDimension + 1);

  typedef typename TInputImage::PixelType InputPixelType;
  typedef Image<InputPixelType,itkGetStaticConstMacro(IntermediateImageDimension)> IntermediateImageType;
  typedef InterpolateImageFunction<IntermediateImageType> InterpolatorType;

  void SetInput1( const InputImageType * image)
    { this->SetInput( image ); }
  const InputImageType * GetInput1()
    { return this->GetInput(); }

  void SetInput2( const InputImageType * image);
  const InputImageType * GetInput2();

  itkSetClampMacro( Distance, double, 0.0, 1.0 );
  itkGetConstMacro( Distance, double );

  itkSetObjectMacro( Interpolator, InterpolatorType ) 


  itkGetObjectMacro( Interpolator, InterpolatorType );

  void BeforeThreadedGenerateData();

  void AfterThreadedGenerateData();

#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(InputHasNumericTraitsCheck,
                  (Concept::HasNumericTraits<InputPixelType>));

#endif

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

  void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
                            int threadId );

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

  typename InterpolatorType::Pointer      m_Interpolator;
  typename IntermediateImageType::Pointer m_IntermediateImage;
  double                                  m_Distance;

};

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