text: /*
   * Copyright (C) 2005-2019 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.
   */
  
  #include "itkMacro.h"
  #include "otbImage.h"
  #include "otbFunctionWithNeighborhoodToImageFilter.h"
  #include "itkVarianceImageFunction.h"
  #include "otbImageFileReader.h"
  #include "otbImageFileWriter.h"
  
  int otbFunctionWithNeighborhoodToImageFilter(int itkNotUsed(argc), char * argv[])
  {
    const unsigned int Dimension = 2;
    typedef double                                                                    PixelType;
    typedef otb::Image<PixelType, Dimension>                                          InputImageType;
    typedef otb::Image<PixelType, Dimension>                                          OutputImageType;
    typedef otb::ImageFileReader<InputImageType>                                      ReaderType;
    typedef otb::ImageFileWriter<OutputImageType>                            WriterType;
    typedef itk::VarianceImageFunction<InputImageType>                                FunctionType;
    typedef otb::FunctionWithNeighborhoodToImageFilter<InputImageType, OutputImageType, FunctionType> FilterType;
  
    // Instantiating object
    FilterType::Pointer filter = FilterType::New();
    ReaderType::Pointer reader = ReaderType::New();
    WriterType::Pointer writer = WriterType::New();
  
    reader->SetFileName(argv[1]);
    writer->SetFileName(argv[2]);
    filter->SetInput(reader->GetOutput());
  
    FunctionType::Pointer function = FunctionType::New();
    function->SetNeighborhoodRadius(atoi(argv[3]));
    function->SetInputImage(reader->GetOutput());
  
    filter->SetFunction(function);
  
    writer->SetInput(filter->GetOutput());
    writer->SetNumberOfDivisionsStrippedStreaming(2);
    writer->Update();
  
    return EXIT_SUCCESS;
  }
  