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/*=========================================================================
Program: ORFEO Toolbox
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
See OTBCopyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "otbOpticalCalibration.h"
#include <iostream>
#include "otbVectorImage.h"
#include "otbImageFileReader.h"
#include "otbImageToLuminanceImageFilter.h"
#include "otbLuminanceToReflectanceImageFilter.h"
#include "otbReflectanceToSurfaceReflectanceImageFilter.h"
#include "otbStreamingImageFileWriter.h"
#include "otbStandardWriterWatcher.h"
#include "otbPipelineMemoryPrintCalculator.h"

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namespace otb
{
int OpticalCalibration::Describe(ApplicationDescriptor* descriptor)
{
descriptor->SetName("OpticalCalibration");
descriptor->SetDescription("Perform optical calibration TOA/TOC");
descriptor->AddInputImage();
descriptor->AddOutputImage();
descriptor->AddOptionNParams("Level",
"Level of calibration toa or toc",
"level",true, otb::ApplicationDescriptor::String);
descriptor->AddOption("AvailableMemory","Set the maximum of available memory for the pipeline execution in mega bytes (optional, 256 by default","ram",1,false, otb::ApplicationDescriptor::Integer);
return EXIT_SUCCESS;
}
int OpticalCalibration::Execute(otb::ApplicationOptionsResult* parseResult)
{
typedef otb::VectorImage<unsigned short int, 2> ImageType;
typedef otb::ImageFileReader<ImageType> ReaderType;
typedef otb::StreamingImageFileWriter<ImageType> WriterType;
typedef ImageToLuminanceImageFilter<ImageType, ImageType> ImageToLuminanceImageFilterType;
typedef LuminanceToReflectanceImageFilter<ImageType,
ImageType> LuminanceToReflectanceImageFilterType;
typedef ReflectanceToSurfaceReflectanceImageFilter<ImageType,
ImageType> ReflectanceToSurfaceReflectanceImageFilterType;
typedef otb::PipelineMemoryPrintCalculator MemoryCalculatorType;
// calibration process
if(parseResult->IsOptionPresent("Level"))
{
// Read input image information
ReaderType::Pointer reader=ReaderType::New();
reader->SetFileName(parseResult->GetInputImage().c_str());
reader->GenerateOutputInformation();
ImageToLuminanceImageFilterType ::Pointer imageToLuminanceFilter = ImageToLuminanceImageFilterType::New();
LuminanceToReflectanceImageFilterType::Pointer luminanceToReflectanceFilter = LuminanceToReflectanceImageFilterType::New();
ReflectanceToSurfaceReflectanceImageFilterType::Pointer reflectanceToSurfaceReflectanceFilter = ReflectanceToSurfaceReflectanceImageFilterType::New();
imageToLuminanceFilter->SetInput(reader->GetOutput());
luminanceToReflectanceFilter->SetInput(imageToLuminanceFilter->GetOutput());
reflectanceToSurfaceReflectanceFilter->SetInput(luminanceToReflectanceFilter->GetOutput());
//Instantiate the writer
WriterType::Pointer writer = WriterType::New();
writer->SetFileName(parseResult->GetOutputImage());
writer->SetInput(luminanceToReflectanceFilter->GetOutput());
writer->SetWriteGeomFile(true);
//Instantiate the pipeline memory print estimator
MemoryCalculatorType::Pointer calculator = MemoryCalculatorType::New();
const double byteToMegabyte = 1./vcl_pow(2.0, 20);
if (parseResult->IsOptionPresent("AvailableMemory"))
{
long long int memory = static_cast <long long int> (parseResult->GetParameterUInt("AvailableMemory"));
calculator->SetAvailableMemory(memory / byteToMegabyte);
}

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{

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calculator->SetAvailableMemory(256 * byteToMegabyte);
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}

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calculator->SetDataToWrite(imageToLuminanceFilter->GetOutput());
calculator->Compute();
writer->SetTilingStreamDivisions(calculator->GetOptimalNumberOfStreamDivisions());
otbMsgDevMacro(<< "Guess the pipeline memory print " << calculator->GetMemoryPrint()*byteToMegabyte << " Mo");
otbMsgDevMacro(<< "Number of stream divisions : " << calculator->GetOptimalNumberOfStreamDivisions());
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otb::StandardWriterWatcher watcher(writer,"OpticalCalibration");
writer->Update();
return EXIT_SUCCESS;
}
else
{
itkGenericExceptionMacro(<< "No levels of are specified");