itkLabelContourImageFilter.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 itkLabelContourImageFilter_h
#define itkLabelContourImageFilter_h

#include "itkInPlaceImageFilter.h"
#include "itkScanlineFilterCommon.h"
#include <vector>

namespace itk
{
template< typename TInputImage, typename TOutputImage >
class ITK_TEMPLATE_EXPORT LabelContourImageFilter:
  public InPlaceImageFilter< TInputImage, TOutputImage >
  , protected ScanlineFilterCommon< TInputImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(LabelContourImageFilter);

  using Self = LabelContourImageFilter;
  using Superclass = InPlaceImageFilter< TInputImage, TOutputImage >;
  using Pointer = SmartPointer< Self >;
  using ConstPointer = SmartPointer< const Self >;
  using Superclass::Register;
  using Superclass::UnRegister;

  itkNewMacro(Self);

  itkTypeMacro(LabelContourImageFilter, InPlaceImageFilter);

  static constexpr unsigned int ImageDimension = TOutputImage::ImageDimension;

  using InputImageType = TInputImage;
  using InputImagePointer = typename InputImageType::Pointer;
  using InputIndexType = typename InputImageType::IndexType;
  using InputSizeType = typename InputImageType::SizeType;
  using InputOffsetType = typename InputImageType::OffsetType;
  using InputImagePixelType = typename InputImageType::PixelType;
  using OffsetValueType = typename InputImageType::OffsetValueType;
  using InputPixelType = typename InputImageType::PixelType;

  using OutputImageType = TOutputImage;
  using OutputImagePointer = typename OutputImageType::Pointer;
  using OutputRegionType = typename OutputImageType::RegionType;
  using OutputIndexType = typename OutputImageType::IndexType;
  using OutputSizeType = typename OutputImageType::SizeType;
  using OutputOffsetType = typename OutputImageType::OffsetType;
  using OutputImagePixelType = typename OutputImageType::PixelType;

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

  itkSetMacro(BackgroundValue, OutputImagePixelType);
  itkGetConstMacro(BackgroundValue, OutputImagePixelType);

protected:

  LabelContourImageFilter();
  ~LabelContourImageFilter() override = default;

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

  void GenerateData() override;

  void BeforeThreadedGenerateData() override;

  void AfterThreadedGenerateData() override;

  void DynamicThreadedGenerateData(const OutputRegionType& outputRegionForThread) override;

  void ThreadedIntegrateData(const OutputRegionType& outputRegionForThread);


  void GenerateInputRequestedRegion() override;

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

  using ScanlineFunctions = ScanlineFilterCommon< TInputImage, TOutputImage >;

  using InternalLabelType         = typename ScanlineFunctions::InternalLabelType;
  using OutSizeType               = typename ScanlineFunctions::OutSizeType;
  using RunLength                 = typename ScanlineFunctions::RunLength;
  using LineEncodingType          = typename ScanlineFunctions::LineEncodingType;
  using LineEncodingIterator      = typename ScanlineFunctions::LineEncodingIterator;
  using LineEncodingConstIterator = typename ScanlineFunctions::LineEncodingConstIterator;
  using OffsetVectorType          = typename ScanlineFunctions::OffsetVectorType;
  using OffsetVectorConstIterator = typename ScanlineFunctions::OffsetVectorConstIterator;
  using LineMapType               = typename ScanlineFunctions::LineMapType;
  using UnionFindType             = typename ScanlineFunctions::UnionFindType;
  using ConsecutiveVectorType     = typename ScanlineFunctions::ConsecutiveVectorType;

private:
  OutputImagePixelType m_BackgroundValue;

  LineMapType m_LineMap;
};
} // end namespace itk

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

#endif