itkInterpolateImageFilter.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef __itkInterpolateImageFilter_h
#define __itkInterpolateImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkLinearInterpolateImageFunction.h"

namespace itk
{
template< typename TInputImage, typename TOutputImage >
class 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)
  itkGetModifiableObjectMacro(Interpolator, InterpolatorType);

  void BeforeThreadedGenerateData();

  void AfterThreadedGenerateData();

#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro( InputHasNumericTraitsCheck,
                   ( Concept::HasNumericTraits< InputPixelType > ) );
  // End concept checking
#endif

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

  void ThreadedGenerateData(const OutputImageRegionType & outputRegionForThread,
                            ThreadIdType 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.hxx"
#endif

#endif