text: /*
   * 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 "otbMultiChannelRAndBAndNIRIndexImageFilter.h"
  #include "otbImage.h"
  #include "otbVectorImage.h"
  #include "otbImageFileReader.h"
  #include "otbImageFileWriter.h"
  
  template<class TInputImage, class TOutputImage, class TFunction>
  int generic_EVIMultiChannelRAndBAndNIRVegetationIndexImageFilter(int itkNotUsed(argc), char * argv[])
  {
    typedef otb::ImageFileReader<TInputImage>  ReaderType;
    typedef otb::ImageFileWriter<TOutputImage> WriterType;
  
    typedef otb::MultiChannelRAndBAndNIRIndexImageFilter<TInputImage, TOutputImage, TFunction>
    MultiChannelRAndBAndNIRIndexImageFilterType;
  
    // Instantiating object
    typename MultiChannelRAndBAndNIRIndexImageFilterType::Pointer filter =
      MultiChannelRAndBAndNIRIndexImageFilterType::New();
    typename ReaderType::Pointer reader = ReaderType::New();
    typename WriterType::Pointer writer = WriterType::New();
  
    const char * inputFilename  = argv[1];
    const char * outputFilename = argv[2];
  
    unsigned int redChannel(::atoi(argv[3]));
    unsigned int blueChannel(::atoi(argv[4]));
    unsigned int nirChannel(::atoi(argv[5]));
  
    double g(::atof(argv[6]));
    double c1(::atof(argv[7]));
    double c2(::atof(argv[8]));
    double l(::atof(argv[9]));
  
    reader->SetFileName(inputFilename);
    writer->SetFileName(outputFilename);
    filter->SetRedIndex(redChannel);
    filter->SetBlueIndex(blueChannel);
    filter->SetNIRIndex(nirChannel);
    filter->SetInput(reader->GetOutput());
    filter->GetFunctor().SetG(g);
    filter->GetFunctor().SetC1(c1);
    filter->GetFunctor().SetC2(c2);
    filter->GetFunctor().SetL(l);
  
    writer->SetInput(filter->GetOutput());
    writer->Update();
  
    return EXIT_SUCCESS;
  }
  
  int otbEVIMultiChannelRAndBAndNIRVegetationIndexImageFilter(int argc, char * argv[])
  {
    const unsigned int Dimension = 2;
    typedef otb::VectorImage<double, Dimension> InputImageType;
    typedef otb::Image<double, Dimension>       OutputImageType;
  
    std::string strArgv(argv[1]);
    argc--;
    argv++;
    if (strArgv == "EVI")
      return (generic_EVIMultiChannelRAndBAndNIRVegetationIndexImageFilter<InputImageType, OutputImageType,
                  otb::Functor::EVI<InputImageType::
                      InternalPixelType,
                      InputImageType::
                      InternalPixelType,
                      InputImageType::
                      InternalPixelType,
                      OutputImageType::PixelType> >
                (argc, argv));
    else return EXIT_FAILURE;
    return EXIT_SUCCESS;
  }
  