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/*
* Copyright (C) 2005-2020 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 otbNRIBandImagesToOneNComplexBandsImage_hxx
#define otbNRIBandImagesToOneNComplexBandsImage_hxx
#include "otbNRIBandImagesToOneNComplexBandsImage.h"
#include "itkImageRegionIterator.h"
#include "itkImageRegionConstIterator.h"
#include "itkProgressReporter.h"
#include "itkVariableLengthVector.h"
namespace otb
{
/**
*
*/
template <class TInputImage, class TOutputImage>
NRIBandImagesToOneNComplexBandsImage<TInputImage, TOutputImage>::NRIBandImagesToOneNComplexBandsImage()
{
// this->SetNumberOfThreads(1);
}
/**
* GenerateOutputInformation
*/
template <class TInputImage, class TOutputImage>
void NRIBandImagesToOneNComplexBandsImage<TInputImage, TOutputImage>::GenerateOutputInformation(void)
{
Superclass::GenerateOutputInformation();
unsigned int nbInputs = this->GetNumberOfInputs();
this->GetOutput()->SetNumberOfComponentsPerPixel(nbInputs);
}
/**
* BeforeThreadedGenerateData
*/
template <class TInputImage, class TOutputImage>
void NRIBandImagesToOneNComplexBandsImage<TInputImage, TOutputImage>::BeforeThreadedGenerateData(void)
{
unsigned int nbInputs = this->GetNumberOfInputs();
for (unsigned int i = 0; i < nbInputs; i++)
if (this->GetInput(i)->GetNumberOfComponentsPerPixel() != 2)
itkExceptionMacro("Input images must be made of two bands and only two (see input #" << i << ").");
}
/**
* ThreadedGenerateData
*/
template <class TInputImage, class TOutputImage>
void NRIBandImagesToOneNComplexBandsImage<TInputImage, TOutputImage>::ThreadedGenerateData(const OutputImageRegionType& outputRegionForThread,
itk::ThreadIdType threadId)
{
// support progress methods/callbacks
itk::ProgressReporter progress(this, threadId, outputRegionForThread.GetNumberOfPixels());
unsigned int nbInputs = this->GetNumberOfInputs();
itk::VariableLengthVector<std::complex<typename InputPixelType::ValueType>> vlv(nbInputs);
std::vector<typename itk::ImageRegionConstIterator<TInputImage>> vInIt;
for (unsigned int i = 0; i < nbInputs; i++)
vInIt.push_back(itk::ImageRegionConstIterator<TInputImage>(this->GetInput(i), outputRegionForThread));
itk::ImageRegionIterator<OutputImageType> outIt;
outIt = itk::ImageRegionIterator<OutputImageType>(this->GetOutput(), outputRegionForThread);
for (unsigned int i = 0; i < nbInputs; i++)
vInIt[i].GoToBegin();
outIt.GoToBegin();
while (!outIt.IsAtEnd())
{
for (unsigned int i = 0; i < nbInputs; i++)
{
vlv[i] = std::complex<typename InputPixelType::ValueType>(vInIt[i].Get()[0], vInIt[i].Get()[1]);
// std::cout << "i = " << i << " " << vInIt[i].Get()[0] << " " << vInIt[i].Get()[1] << std::endl;
}
outIt.Set(vlv);
// std::cout << "outIt.Get() = " << outIt.Get() << std::endl;
for (unsigned int i = 0; i < nbInputs; i++)
++vInIt[i];
++outIt;
progress.CompletedPixel();
}
}
/**
* Standard "PrintSelf" method
*/
template <class TInputImage, class TOutput>
void NRIBandImagesToOneNComplexBandsImage<TInputImage, TOutput>::PrintSelf(std::ostream& os, itk::Indent indent) const
{
Superclass::PrintSelf(os, indent);
}
} // end namespace otb
#endif
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