/*
 * Copyright (C) 2005-2017 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 <iostream>

#include "otbImage.h"
#include "otbImageFileReader.h"
#include "otbImageFileWriter.h"
#include "otbGammaMAPImageFilter.h"

int otbGammaMAPFilter(int itkNotUsed(argc), char * argv[])
{
  const char * inputFilename  = argv[1];
  const char * outputFilename = argv[2];

  unsigned int RadiusX((unsigned int) ::atoi(argv[3]));
  unsigned int RadiusY((unsigned int) ::atoi(argv[4]));
  double       NbLooks((double) ::atof(argv[5]));

  typedef double InputPixelType;
  typedef double OutputPixelType;
  const unsigned int Dimension = 2;

  typedef otb::Image<InputPixelType,  Dimension> InputImageType;
  typedef otb::Image<OutputPixelType, Dimension> OutputImageType;

  typedef otb::ImageFileReader<InputImageType>  ReaderType;
  typedef otb::ImageFileWriter<OutputImageType> WriterType;

  typedef otb::GammaMAPImageFilter<InputImageType, OutputImageType> FilterType;

  FilterType::SizeType Radius;
  Radius[0] = RadiusX;
  Radius[1] = RadiusY;

  FilterType::Pointer filterLee = FilterType::New();

  filterLee->SetRadius(Radius);
  // OTB-FA-00018-CS
  filterLee->SetNbLooks(NbLooks);

  ReaderType::Pointer reader = ReaderType::New();
  WriterType::Pointer writer = WriterType::New();

  reader->SetFileName(inputFilename);
  writer->SetFileName(outputFilename);

  filterLee->SetInput(reader->GetOutput());
  writer->SetInput(filterLee->GetOutput());

  writer->Update();

  return EXIT_SUCCESS;
}
