otbDSFusionOfClassifiersImageFilter.h

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/*
 * Copyright (C) 2005-2022 Centre National d'Etudes Spatiales (CNES)
 *
 * This file is part of Orfeo Toolbox
 *
 *     https://www.orfeo-toolbox.org/
 *
 * 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
 *
 * 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 otbDSFusionOfClassifiersImageFilter_h
#define otbDSFusionOfClassifiersImageFilter_h
 
#include "itkImageToImageFilter.h"
#include "otbVectorImage.h"
#include "otbImage.h"
 
namespace otb
{
template <class TInputImage, class TOutputImage, class TMaskImage = TOutputImage>
class ITK_EXPORT DSFusionOfClassifiersImageFilter : public itk::ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  typedef DSFusionOfClassifiersImageFilter Self;
  typedef itk::ImageToImageFilter<TInputImage, TOutputImage> Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
 
  itkNewMacro(Self);
 
  itkTypeMacro(DSFusionOfClassifiersImageFilter, ImageToImageFilter);
 
  // TInputImage is expected to be a vector image
  typedef TInputImage                                InputImageType;
  typedef typename InputImageType::ConstPointer      InputImageConstPointerType;
  typedef typename InputImageType::InternalPixelType ValueType;
  typedef typename InputImageType::PixelType         PixelType;
  typedef typename InputImageType::InternalPixelType InternalPixelType;
 
  // TMaskImage is expected to be a mono band image
  typedef TMaskImage                           MaskImageType;
  typedef typename MaskImageType::ConstPointer MaskImageConstPointerType;
  typedef typename MaskImageType::Pointer      MaskImagePointerType;
 
  // TOutputImage is expected to be a mono band image
  typedef TOutputImage                         OutputImageType;
  typedef typename OutputImageType::Pointer    OutputImagePointerType;
  typedef typename OutputImageType::RegionType OutputImageRegionType;
  typedef typename OutputImageType::PixelType  LabelType;
 
  typedef double MassType;
  typedef typename std::map<LabelType, MassType>     LabelMassMapType;
  typedef typename std::map<LabelType, unsigned int> ClassifierHistogramType;
  typedef typename std::vector<LabelMassMapType> VectorOfMapOfMassesOfBeliefType;
 
 
  itkSetMacro(LabelForNoDataPixels, LabelType);
  itkGetMacro(LabelForNoDataPixels, LabelType);
 
  itkSetMacro(LabelForUndecidedPixels, LabelType);
  itkGetMacro(LabelForUndecidedPixels, LabelType);
 
 
  void SetInputMask(const MaskImageType* mask);
 
  void SetInputMapsOfMassesOfBelief(const VectorOfMapOfMassesOfBeliefType* ptrVectorOfMapOfMassesOfBelief);
 
  const MaskImageType* GetInputMask(void);
 
  const VectorOfMapOfMassesOfBeliefType* GetInputMapsOfMassesOfBelief(void);
 
  const LabelType OptimizedDSMassCombination(PixelType vectorPixelValue);
 
 
protected:
  DSFusionOfClassifiersImageFilter();
 
  ~DSFusionOfClassifiersImageFilter() override
  {
  }
 
  void GenerateOutputInformation() override;
 
  void ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread, itk::ThreadIdType threadId) override;
 
  void BeforeThreadedGenerateData() override;
 
  void PrintSelf(std::ostream& os, itk::Indent indent) const override;
 
private:
  DSFusionOfClassifiersImageFilter(const Self&) = delete;
  void operator=(const Self&) = delete;
 
  unsigned int            m_NumberOfClassifiers;
  ClassifierHistogramType m_Universe;
  unsigned int            m_NumberOfClassesInUniverse;
 
  VectorOfMapOfMassesOfBeliefType m_VectorOfMapMOBs;
  std::vector<MassType>           m_VectorOfUniverseMOBs;
 
  LabelType m_LabelForNoDataPixels;
 
  LabelType m_LabelForUndecidedPixels;
};
} // End namespace otb
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbDSFusionOfClassifiersImageFilter.hxx"
#endif
 
#endif