otbStreamingMosaicFilterBase.h

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/*
 * Copyright (C) 1999-2011 Insight Software Consortium
 * Copyright (C) 2005-2024 Centre National d'Etudes Spatiales (CNES)
 * Copyright (C) 2016-2019 IRSTEA
 *
 * 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 __StreamingMosaicFilterBase_H
#define __StreamingMosaicFilterBase_H
 
#include "itkImageToImageFilter.h"
#include "itkNearestNeighborInterpolateImageFunction.h"
#include "otbStreamingTraits.h"
 
// No data
#include "otbNoDataHelper.h"
 
namespace otb
{
template <class TInputImage, class TOutputImage = TInputImage, class TInternalValueType = double>
class ITK_EXPORT StreamingMosaicFilterBase : public itk::ImageToImageFilter<TInputImage, TOutputImage>
{
public:
  typedef StreamingMosaicFilterBase Self;
  typedef itk::ImageToImageFilter<TInputImage, TOutputImage> Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
 
  itkTypeMacro(StreamingMosaicFilterBase, ImageToImageFilter);
 
  typedef TInputImage                                InputImageType;
  typedef typename InputImageType::ConstPointer      InputImagePointer;
  typedef typename InputImageType::RegionType        InputImageRegionType;
  typedef typename InputImageType::PixelType         InputImagePixelType;
  typedef typename InputImageType::PointType         InputImagePointType;
  typedef typename InputImageType::IndexType         InputImageIndexType;
  typedef typename InputImageType::SizeType          InputImageSizeType;
  typedef typename InputImageType::SpacingType       InputImageSpacingType;
  typedef typename InputImageType::InternalPixelType InputImageInternalPixelType;
 
  typedef TOutputImage                                OutputImageType;
  typedef typename OutputImageType::Pointer           OutputImagePointer;
  typedef typename OutputImageType::RegionType        OutputImageRegionType;
  typedef typename OutputImageType::IndexType         OutputImageIndexType;
  typedef typename OutputImageType::PointType         OutputImagePointType;
  typedef typename OutputImageType::SizeType          OutputImageSizeType;
  typedef typename OutputImageType::SpacingType       OutputImageSpacingType;
  typedef typename OutputImageType::PixelType         OutputImagePixelType;
  typedef typename OutputImageType::InternalPixelType OutputImageInternalPixelType;
 
  typedef TInternalValueType InternalValueType;
  typedef typename itk::ContinuousIndex<double, 2>                         ContinuousIndexType;
  typedef itk::InterpolateImageFunction<InputImageType, InternalValueType> InterpolatorType;
  typedef typename InterpolatorType::Pointer InterpolatorPointerType;
  typedef itk::NearestNeighborInterpolateImageFunction<InputImageType, InternalValueType> DefaultInterpolatorType;
  typedef typename otb::VectorImage<InternalValueType, 2>                                 InternalImageType;
  typedef typename InternalImageType::PixelType          InternalPixelType;
  typedef itk::ImageRegionIterator<OutputImageType>      IteratorType;
  typedef itk::ImageRegionConstIterator<OutputImageType> ConstIteratorType;
  typedef otb::StreamingTraits<OutputImageType>          StreamingTraitsType;
 
  typedef std::vector<unsigned int> IndicesListType;
 
  typedef vnl_matrix<InternalValueType> MatrixType;
 
  itkSetObjectMacro(Interpolator, InterpolatorType);
  itkGetObjectMacro(Interpolator, InterpolatorType);
 
  itkSetMacro(NoDataOutputPixel, OutputImagePixelType);
  itkGetMacro(NoDataOutputPixel, OutputImagePixelType);
 
  itkSetMacro(NoDataInputPixel, InputImagePixelType);
  itkGetMacro(NoDataInputPixel, InputImagePixelType);
 
  itkSetMacro(OutputSpacing, OutputImageSpacingType);
  itkGetMacro(OutputSpacing, OutputImageSpacingType);
 
  itkSetMacro(OutputOrigin, OutputImagePointType);
  itkGetMacro(OutputOrigin, OutputImagePointType);
 
  itkSetMacro(OutputSize, OutputImageSizeType);
  itkGetMacro(OutputSize, OutputImageSizeType);
 
  itkSetMacro(AutomaticOutputParametersComputation, bool);
  itkGetMacro(AutomaticOutputParametersComputation, bool);
 
  itkSetMacro(ShiftScaleInputImages, bool);
  itkGetMacro(ShiftScaleInputImages, bool);
  itkBooleanMacro(ShiftScaleInputImages);
 
  virtual void SetShiftMatrix(MatrixType shiftMatrix)
  {
    m_ShiftMatrix = MatrixType(shiftMatrix);
  }
 
  virtual void SetScaleMatrix(MatrixType scaleMatrix)
  {
    m_ScaleMatrix = MatrixType(scaleMatrix);
  }
 
  virtual MatrixType GetShiftMatrix()
  {
    return m_ShiftMatrix;
  }
 
  virtual MatrixType GetScaleMatrix()
  {
    return m_ScaleMatrix;
  }
 
protected:
  StreamingMosaicFilterBase();
  ~StreamingMosaicFilterBase()
  {
  }
 
  void GenerateOutputInformation(void) override;
 
  void GenerateInputRequestedRegion(void) override;
 
  void AfterThreadedGenerateData() override;
 
  void BeforeThreadedGenerateData() override;
 
  virtual void ImageToExtent(InputImageType* image, InputImagePointType& extentInf, InputImagePointType& extentSup);
 
  virtual bool OutputRegionToInputRegion(const OutputImageRegionType& mosaicRegion, InputImageRegionType& inputRegion, InputImageType*& inputImage);
 
  virtual void NormalizePixelValue(InternalValueType& pixelValue);
 
  virtual bool IsPixelNotEmpty(InputImagePixelType& inputPixel);
 
  virtual void AddUsedInputImageIndex(unsigned int index)
  {
    usedInputIndices.push_back(index);
  }
 
  virtual unsigned int GetUsedInputImageIndice(unsigned int i)
  {
    return usedInputIndices[i];
  }
 
  virtual unsigned int GetNumberOfUsedInputImages()
  {
    return usedInputIndices.size();
  }
 
  virtual void ComputeOutputParameters();
 
  virtual unsigned int GetNumberOfInputImages()
  {
    return this->GetNumberOfInputs();
  }
 
  virtual unsigned int GetNumberOfBands()
  {
    return nbOfBands;
  }
 
  virtual void ComputeRequestedRegionOfInputImage(unsigned int inputImageIndex);
 
  virtual void ShiftScaleValue(InternalValueType& value, const unsigned int& imageIndex, unsigned int& band)
  {
    value *= m_ScaleMatrix[imageIndex][band];
    value += m_ShiftMatrix[imageIndex][band];
  }
 
  virtual void CheckShiftScaleMatrices();
 
  virtual void PrepareImageAccessors(typename std::vector<InputImageType*>& image, typename std::vector<InterpolatorPointerType>& interpolator);
 
private:
  StreamingMosaicFilterBase(const Self&); // purposely not implemented
  void operator=(const Self&);            // purposely not implemented
 
  InterpolatorPointerType m_Interpolator;      // Interpolator
  OutputImagePixelType    m_NoDataOutputPixel; // No data (output)
  InputImagePixelType     m_NoDataInputPixel;  // No data (input)
 
  OutputImageSpacingType m_OutputSpacing; // Output spacing
  OutputImagePointType   m_OutputOrigin;  // Output origin
  OutputImageSizeType    m_OutputSize;    // Output size
 
  bool m_AutomaticOutputParametersComputation; // Output parameters auto on/off
  bool m_ShiftScaleInputImages;                // Shift-scale mode on/off
 
  MatrixType m_ShiftMatrix; // matrix of shifts
  MatrixType m_ScaleMatrix; // matrix of scales
 
  unsigned int      nbOfBands;          // number of bands
  unsigned int      interpolatorRadius; // interpolator padding radius
  IndicesListType   usedInputIndices;   // requested input image indices
  InternalValueType minOutputPixelValue;
  InternalValueType maxOutputPixelValue;
 
}; // end of class
 
} // end namespace itk
 
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbStreamingMosaicFilterBase.hxx"
#endif
 
#endif