itkEigenAnalysis2DImageFilter.h

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/*=========================================================================
 *
 *  Copyright NumFOCUS
 *
 *  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
 *
 *         https://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 itkEigenAnalysis2DImageFilter_h
#define itkEigenAnalysis2DImageFilter_h
 
#include "itkImageToImageFilter.h"
 
namespace itk
{
 
template <typename TInputImage, typename TEigenValueImage, typename TEigenVectorImage>
class ITK_TEMPLATE_EXPORT EigenAnalysis2DImageFilter : public ImageToImageFilter<TInputImage, TEigenValueImage>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(EigenAnalysis2DImageFilter);

  using Self = EigenAnalysis2DImageFilter;
  using Superclass = ImageToImageFilter<TInputImage, TEigenValueImage>;
  using Pointer = SmartPointer<Self>;
  using ConstPointer = SmartPointer<const Self>;

  itkOverrideGetNameOfClassMacro(EigenAnalysis2DImageFilter);

  itkNewMacro(Self);

  using EigenVectorType = typename TEigenVectorImage::PixelType;
  using VectorComponentType = typename EigenVectorType::ValueType;

  using typename Superclass::OutputImageRegionType;

  using EigenValueImageType = TEigenValueImage;
  using EigenValueImagePointer = typename EigenValueImageType::Pointer;
  using EigenValueImageRegionType = typename EigenValueImageType::RegionType;
  using EigenValueImagePixelType = typename EigenValueImageType::PixelType;
  using EigenVectorImageType = TEigenVectorImage;
  using EigenVectorImagePointer = typename EigenVectorImageType::Pointer;
  using EigenVectorImageRegionType = typename EigenVectorImageType::RegionType;
  using EigenVectorImagePixelType = typename EigenVectorImageType::PixelType;

  static constexpr unsigned int ImageDimension = TInputImage::ImageDimension;

  void
  SetInput1(TInputImage * image);

  void
  SetInput2(TInputImage * image);

  void
  SetInput3(TInputImage * image);

  EigenValueImageType *
  GetMaxEigenValue();

  EigenValueImageType *
  GetMinEigenValue();

  EigenVectorImageType *
  GetMaxEigenVector();

  using DataObjectPointerArraySizeType = ProcessObject::DataObjectPointerArraySizeType;
  using Superclass::MakeOutput;
  DataObject::Pointer
  MakeOutput(DataObjectPointerArraySizeType idx) override;
 
  itkConceptMacro(VectorComponentHasNumericTraitsCheck, (Concept::HasNumericTraits<VectorComponentType>));
 
protected:
  EigenAnalysis2DImageFilter();
  ~EigenAnalysis2DImageFilter() override = default;
 
  void
  GenerateData() override;
};
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkEigenAnalysis2DImageFilter.hxx"
#endif
 
#endif