itkInverseDisplacementFieldImageFilter.h

Go to the documentation of this file.

/*=========================================================================
 *
 *  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 itkInverseDisplacementFieldImageFilter_h
#define itkInverseDisplacementFieldImageFilter_h

#include "itkImageToImageFilter.h"
#include "itkKernelTransform.h"
#include "itkImageRegionConstIteratorWithIndex.h"

namespace itk
{
template< typename TInputImage, typename TOutputImage >
class ITK_TEMPLATE_EXPORT InverseDisplacementFieldImageFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(InverseDisplacementFieldImageFilter);

  using Self = InverseDisplacementFieldImageFilter;
  using Superclass = ImageToImageFilter< TInputImage, TOutputImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  using InputImageType = TInputImage;
  using InputImagePointer = typename InputImageType::Pointer;
  using InputImageConstPointer = typename InputImageType::ConstPointer;
  using InputImageRegionType = typename InputImageType::RegionType;
  using OutputImageType = TOutputImage;
  using OutputImagePointer = typename OutputImageType::Pointer;

  itkNewMacro(Self);

  itkTypeMacro(InverseDisplacementFieldImageFilter, ImageToImageFilter);

  static constexpr unsigned int ImageDimension = TOutputImage::ImageDimension;

  using KernelTransformType = KernelTransform<
    double, Self::ImageDimension >;
  using KernelTransformPointerType = typename KernelTransformType::Pointer;

  using SizeType = typename OutputImageType::SizeType;

  using IndexType = typename OutputImageType::IndexType;

  using OutputPixelType = typename TOutputImage::PixelType;
  using OutputPixelComponentType = typename OutputPixelType::ValueType;

  using OutputImageRegionType = typename TOutputImage::RegionType;

  using SpacingType = typename TOutputImage::SpacingType;
  using OriginPointType = typename TOutputImage::PointType;

  itkSetObjectMacro(KernelTransform, KernelTransformType);
  itkGetModifiableObjectMacro(KernelTransform, KernelTransformType);

  itkSetMacro(Size, SizeType);

  itkGetConstReferenceMacro(Size, SizeType);

  itkSetMacro(OutputSpacing, SpacingType);
  virtual void SetOutputSpacing(const double *values);

  itkGetConstReferenceMacro(OutputSpacing, SpacingType);

  itkSetMacro(OutputOrigin, OriginPointType);
  virtual void SetOutputOrigin(const double *values);

  itkGetConstReferenceMacro(OutputOrigin, OriginPointType);

  itkSetMacro(SubsamplingFactor, unsigned int);
  itkGetConstMacro(SubsamplingFactor, unsigned int);

  void GenerateOutputInformation() override;

  void GenerateInputRequestedRegion() override;

  ModifiedTimeType GetMTime() const override;

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

protected:
  InverseDisplacementFieldImageFilter();
  ~InverseDisplacementFieldImageFilter() override = default;
  void PrintSelf(std::ostream & os, Indent indent) const override;

  void GenerateData() override;

  void PrepareKernelBaseSpline();

private:
  SizeType                   m_Size;                 // Size of the output image
  KernelTransformPointerType m_KernelTransform;      // Coordinate transform to
                                                     // use
  SpacingType     m_OutputSpacing;                   // output image spacing
  OriginPointType m_OutputOrigin;                    // output image origin

  unsigned int m_SubsamplingFactor;                  // factor to subsample the
                                                     // input field.
};
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkInverseDisplacementFieldImageFilter.hxx"
#endif

#endif