itkHessianImageFilter.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 itkHessianImageFilter_h
#define itkHessianImageFilter_h

#include "itkImage.h"
#include "itkImageToImageFilter.h"
#include "itkSymmetricSecondRankTensor.h"

namespace itk
{

template <typename TInputImage,
          typename TOutputImage = Image< SymmetricSecondRankTensor<
                                           typename NumericTraits< typename TInputImage::PixelType >::RealType,
                                           TInputImage::ImageDimension >,
                                         TInputImage::ImageDimension > >
class HessianImageFilter :
    public ImageToImageFilter< TInputImage, TOutputImage>
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(HessianImageFilter);

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


  using InputImageType = TInputImage;
  using PixelType = typename InputImageType::PixelType;

  using OutputImageType = TOutputImage;
  using OutputPixelType = typename          OutputImageType::PixelType;
  using OutputImageRegionType = typename OutputImageType::RegionType;


  itkTypeMacro( HessianImageFilter, ImageToImageFilter );

  itkNewMacro(Self);

  void GenerateInputRequestedRegion() override;


#ifdef ITK_USE_CONCEPT_CHECKING

  itkConceptMacro(InputHasNumericTraitsCheck,
                  (Concept::HasNumericTraits<PixelType>));
  itkConceptMacro(OutputHasPixelTraitsCheck,
                  (Concept::HasPixelTraits<OutputPixelType>));

#endif

protected:

  HessianImageFilter( void );

  void DynamicThreadedGenerateData(const OutputImageRegionType& outputRegionForThread) override;
};

} // end namespace itk


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


#endif //itkHessianImageFilter_h