otbTileImageFilter.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 otbTileImageFilter_h
#define otbTileImageFilter_h
 
#include "itkImageToImageFilter.h"
 
namespace otb
{
template <class TImage>
class ITK_EXPORT TileImageFilter : public itk::ImageToImageFilter<TImage, TImage>
{
public:
  typedef TileImageFilter Self;
  typedef itk::ImageToImageFilter<TImage, TImage> Superclass;
  typedef itk::SmartPointer<Self>       Pointer;
  typedef itk::SmartPointer<const Self> ConstPointer;
 
  typedef TImage                         ImageType;
  typedef typename ImageType::Pointer    ImagePointerType;
  typedef typename ImageType::SizeType   SizeType;
  typedef typename ImageType::RegionType RegionType;
 
  itkNewMacro(Self);
 
  itkTypeMacro(TileImageFilter, ImageToImageFilter);
 
  itkSetMacro(Layout, SizeType);
  itkGetConstReferenceMacro(Layout, SizeType);
 
protected:
  TileImageFilter();
 
  ~TileImageFilter() override;
 
  void PrintSelf(std::ostream& os, itk::Indent indent) const override;
 
  void ThreadedGenerateData(const RegionType& outputRegionForThread, itk::ThreadIdType threadId) override;
 
  void GenerateInputRequestedRegion() override;
 
  void GenerateOutputInformation() override;
 
  void VerifyInputInformation() override
  {
  }
 
 
private:
  TileImageFilter(const Self&) = delete;
  void operator=(const Self&) = delete;
 
  // Compute the overlapping region between the output requested
  // region and the nth input tile largest region
  RegionType OutputRegionToInputRegion(unsigned int tileIndex, const RegionType& requestedRegion);
 
  RegionType InputRegionToOutputRegion(unsigned int tileIndex, const RegionType& requestedRegion);
 
  // Layout of the images
  SizeType m_Layout;
 
  // Columns sizes
  std::vector<unsigned int> m_ColumnsSizes;
 
  // Row sizes
  std::vector<unsigned int> m_RowsSizes;
};
 
} // end namespace itk
 
#ifndef OTB_MANUAL_INSTANTIATION
#include "otbTileImageFilter.hxx"
#endif
 
#endif