itkMorphologicalWatershedFromMarkersImageFilter.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 itkMorphologicalWatershedFromMarkersImageFilter_h
#define itkMorphologicalWatershedFromMarkersImageFilter_h

#include "itkImageToImageFilter.h"

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

  using Self = MorphologicalWatershedFromMarkersImageFilter;
  using Superclass = ImageToImageFilter< TInputImage, TLabelImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;

  using InputImageType = TInputImage;
  using LabelImageType = TLabelImage;
  using InputImagePointer = typename InputImageType::Pointer;
  using InputImageConstPointer = typename InputImageType::ConstPointer;
  using InputImageRegionType = typename InputImageType::RegionType;
  using InputImagePixelType = typename InputImageType::PixelType;
  using LabelImagePointer = typename LabelImageType::Pointer;
  using LabelImageConstPointer = typename LabelImageType::ConstPointer;
  using LabelImageRegionType = typename LabelImageType::RegionType;
  using LabelImagePixelType = typename LabelImageType::PixelType;

  using IndexType = typename LabelImageType::IndexType;

  static constexpr unsigned int ImageDimension = TInputImage::ImageDimension;

  itkNewMacro(Self);

  itkTypeMacro(MorphologicalWatershedFromMarkersImageFilter, ImageToImageFilter);

  void SetMarkerImage(const TLabelImage *input)
  {
    // Process object is not const-correct so the const casting is required.
    this->SetNthInput( 1, const_cast< TLabelImage * >( input ) );
  }

  const LabelImageType * GetMarkerImage() const
  {
    return itkDynamicCastInDebugMode< LabelImageType * >
      (const_cast< DataObject * >( this->ProcessObject::GetInput(1) ) );
  }

  void SetInput1(const TInputImage *input)
  {
    this->SetInput(input);
  }

  void SetInput2(const TLabelImage *input)
  {
    this->SetMarkerImage(input);
  }

  itkSetMacro(FullyConnected, bool);
  itkGetConstReferenceMacro(FullyConnected, bool);
  itkBooleanMacro(FullyConnected);

  itkSetMacro(MarkWatershedLine, bool);
  itkGetConstReferenceMacro(MarkWatershedLine, bool);
  itkBooleanMacro(MarkWatershedLine);

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

  void GenerateInputRequestedRegion() override;

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

  void GenerateData() override;

private:
  bool m_FullyConnected{ false };

  bool m_MarkWatershedLine{ true };
}; // end of class
} // end namespace itk

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

#endif