itkLabelMapToAttributeImageFilter.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 itkLabelMapToAttributeImageFilter_h
#define itkLabelMapToAttributeImageFilter_h
 
#include "itkImageToImageFilter.h"
#include "itkAttributeLabelObject.h"
 
namespace itk
{

template <typename TInputImage,
          typename TOutputImage,
          typename TAttributeAccessor =
            typename Functor::AttributeLabelObjectAccessor<typename TInputImage::LabelObjectType>>
class ITK_TEMPLATE_EXPORT LabelMapToAttributeImageFilter : public ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  ITK_DISALLOW_COPY_AND_MOVE(LabelMapToAttributeImageFilter);

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

  using InputImageType = TInputImage;
  using OutputImageType = TOutputImage;
  using InputImagePointer = typename InputImageType::Pointer;
  using InputImageConstPointer = typename InputImageType::ConstPointer;
  using InputImageRegionType = typename InputImageType::RegionType;
  using InputImagePixelType = typename InputImageType::PixelType;
  using OutputImagePointer = typename OutputImageType::Pointer;
  using OutputImageConstPointer = typename OutputImageType::ConstPointer;
  using OutputImageRegionType = typename OutputImageType::RegionType;
  using OutputImagePixelType = typename OutputImageType::PixelType;
  using IndexType = typename OutputImageType::IndexType;
 
  using AttributeAccessorType = TAttributeAccessor;
  using AttributeValueType = typename AttributeAccessorType::AttributeValueType;

  static constexpr unsigned int InputImageDimension = TInputImage::ImageDimension;
  static constexpr unsigned int OutputImageDimension = TOutputImage::ImageDimension;

  itkNewMacro(Self);

  itkOverrideGetNameOfClassMacro(LabelMapToAttributeImageFilter);

  itkSetMacro(BackgroundValue, OutputImagePixelType);
  itkGetConstMacro(BackgroundValue, OutputImagePixelType);
 
protected:
  LabelMapToAttributeImageFilter();
  ~LabelMapToAttributeImageFilter() override = default;
  void
  PrintSelf(std::ostream & os, Indent indent) const override;

  void
  GenerateInputRequestedRegion() override;

  void
  EnlargeOutputRequestedRegion(DataObject * itkNotUsed(output)) override;

  void
  GenerateData() override;
 
private:
  OutputImagePixelType m_BackgroundValue{};
 
}; // end of class
 
} // end namespace itk
 
#ifndef ITK_MANUAL_INSTANTIATION
#  include "itkLabelMapToAttributeImageFilter.hxx"
#endif
 
#endif