itkLabelImageToStatisticsLabelMapFilter.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 itkLabelImageToStatisticsLabelMapFilter_h
#define itkLabelImageToStatisticsLabelMapFilter_h

#include "itkStatisticsLabelObject.h"
#include "itkLabelImageToLabelMapFilter.h"
#include "itkStatisticsLabelMapFilter.h"

namespace itk
{
template< typename TInputImage, typename TFeatureImage, typename TOutputImage =
            LabelMap< StatisticsLabelObject< typename TInputImage::PixelType,
                                             TInputImage::ImageDimension > > >
class ITK_TEMPLATE_EXPORT LabelImageToStatisticsLabelMapFilter:
  public ImageToImageFilter< TInputImage, TOutputImage >
{
public:
  ITK_DISALLOW_COPY_AND_ASSIGN(LabelImageToStatisticsLabelMapFilter);

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

  using InputImageType = TInputImage;
  using InputImagePointer = typename InputImageType::Pointer;
  using InputImageConstPointer = typename InputImageType::ConstPointer;
  using InputImageRegionType = typename InputImageType::RegionType;
  using InputImagePixelType = typename InputImageType::PixelType;

  using OutputImageType = TOutputImage;
  using OutputImagePointer = typename OutputImageType::Pointer;
  using OutputImageConstPointer = typename OutputImageType::ConstPointer;
  using OutputImageRegionType = typename OutputImageType::RegionType;
  using OutputImagePixelType = typename OutputImageType::PixelType;
  using LabelObjectType = typename OutputImageType::LabelObjectType;

  using FeatureImageType = TFeatureImage;
  using FeatureImagePointer = typename FeatureImageType::Pointer;
  using FeatureImageConstPointer = typename FeatureImageType::ConstPointer;
  using FeatureImagePixelType = typename FeatureImageType::PixelType;

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

  using LabelizerType = LabelImageToLabelMapFilter< InputImageType, OutputImageType >;
  using LabelObjectValuatorType = StatisticsLabelMapFilter< OutputImageType, FeatureImageType >;

  itkNewMacro(Self);

  itkTypeMacro(LabelImageToStatisticsLabelMapFilter,
               ImageToImageFilter);

#ifdef ITK_USE_CONCEPT_CHECKING
  // Begin concept checking
  itkConceptMacro( InputEqualityComparableCheck,
                   ( Concept::EqualityComparable< InputImagePixelType > ) );
  itkConceptMacro( IntConvertibleToInputCheck,
                   ( Concept::Convertible< int, InputImagePixelType > ) );
  itkConceptMacro( InputOStreamWritableCheck,
                   ( Concept::OStreamWritable< InputImagePixelType > ) );
  // End concept checking
#endif

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

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

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

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

  const FeatureImageType * GetFeatureImage()
  {
    return static_cast< FeatureImageType * >( this->ProcessObject::GetInput(1) );
  }

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

  void SetInput2(const FeatureImageType *input)
  {
    this->SetFeatureImage(input);
  }

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

  itkSetMacro(NumberOfBins, unsigned int);
  itkGetConstReferenceMacro(NumberOfBins, unsigned int);

protected:
  LabelImageToStatisticsLabelMapFilter();
  ~LabelImageToStatisticsLabelMapFilter() 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;
  bool                 m_ComputeFeretDiameter;
  bool                 m_ComputePerimeter;
  unsigned int         m_NumberOfBins;
  bool                 m_ComputeHistogram;
}; // end of class
} // end namespace itk

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

#endif