itkCenteredTransformInitializer.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 itkCenteredTransformInitializer_h
#define itkCenteredTransformInitializer_h

#include "itkObject.h"
#include "itkObjectFactory.h"
#include "itkImageMomentsCalculator.h"

#include <iostream>

namespace itk
{
template< typename TTransform,
          typename TFixedImage,
          typename TMovingImage >
class ITK_TEMPLATE_EXPORT CenteredTransformInitializer:public Object
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(CenteredTransformInitializer);

  using Self = CenteredTransformInitializer;
  using Superclass = Object;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  itkNewMacro(Self);

  itkTypeMacro(CenteredTransformInitializer, Object);

  using TransformType = TTransform;
  using TransformPointer = typename TransformType::Pointer;

  static constexpr unsigned int InputSpaceDimension = TransformType::InputSpaceDimension;
  static constexpr unsigned int OutputSpaceDimension = TransformType::OutputSpaceDimension;

  using FixedImageType = TFixedImage;
  using MovingImageType = TMovingImage;

  using FixedImagePointer = typename FixedImageType::ConstPointer;
  using MovingImagePointer = typename MovingImageType::ConstPointer;

  using FixedImageCalculatorType = ImageMomentsCalculator< FixedImageType >;
  using MovingImageCalculatorType = ImageMomentsCalculator< MovingImageType >;

  using FixedImageCalculatorPointer = typename FixedImageCalculatorType::Pointer;
  using MovingImageCalculatorPointer = typename MovingImageCalculatorType::Pointer;

  using OffsetType = typename TransformType::OffsetType;

  using InputPointType = typename TransformType::InputPointType;

  using OutputVectorType = typename TransformType::OutputVectorType;

  itkSetObjectMacro(Transform,   TransformType);

  itkSetConstObjectMacro(FixedImage,  FixedImageType);

  itkSetConstObjectMacro(MovingImage, MovingImageType);

  virtual void InitializeTransform();

  void GeometryOn() { m_UseMoments = false; }
  void MomentsOn()  { m_UseMoments = true; }

  itkGetModifiableObjectMacro(FixedCalculator, FixedImageCalculatorType);
  itkGetModifiableObjectMacro(MovingCalculator, MovingImageCalculatorType);

protected:
  CenteredTransformInitializer();
  ~CenteredTransformInitializer() override = default;

  void PrintSelf(std::ostream & os, Indent indent) const override;

  itkGetModifiableObjectMacro(Transform, TransformType);

private:
  TransformPointer m_Transform;

  FixedImagePointer m_FixedImage;

  MovingImagePointer m_MovingImage;

  bool m_UseMoments;

  FixedImageCalculatorPointer  m_FixedCalculator;
  MovingImageCalculatorPointer m_MovingCalculator;
}; //class CenteredTransformInitializer
}  // namespace itk

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

#endif /* itkCenteredTransformInitializer_h */