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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.
*/
#include "otbImageFileReader.h"
#include "otbImageFileWriter.h"
#include "otbVectorImage.h"
#include "otbImage.h"
#include "itkUnaryFunctorImageFilter.h"
#include "itkImageRegionIterator.h"
#include "itkRescaleIntensityImageFilter.h"
int otbImageFileReaderMSTAR(int itkNotUsed(argc), char* argv[])
{
typedef float InputPixelType;
typedef unsigned char OutputPixelType;
const unsigned int InputDimension = 2;
typedef otb::Image<itk::FixedArray<InputPixelType, 2>, InputDimension> InputImageType;
typedef otb::Image<InputPixelType, InputDimension> InternalImageType;
typedef otb::Image<OutputPixelType, InputDimension> OutputImageType;
typedef otb::ImageFileReader<InputImageType> ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName(argv[1]);
reader->Update();
typedef itk::ImageRegionConstIterator<InputImageType> ConstIteratorType;
typedef itk::ImageRegionIterator<InternalImageType> IteratorType;
InputImageType::RegionType inputRegion;
InputImageType::RegionType::IndexType inputStart;
InputImageType::RegionType::SizeType size;
inputStart[0] = 0;
inputStart[1] = 0;
size[0] = reader->GetOutput()->GetLargestPossibleRegion().GetSize()[0];
size[1] = reader->GetOutput()->GetLargestPossibleRegion().GetSize()[1];
inputRegion.SetSize(size);
inputRegion.SetIndex(inputStart);
InternalImageType::RegionType outputRegion;
InternalImageType::RegionType::IndexType outputStart;
outputStart[0] = 0;
outputStart[1] = 0;
outputRegion.SetSize(size);
outputRegion.SetIndex(outputStart);
InternalImageType::Pointer magnitude = InternalImageType::New();
magnitude->SetRegions(inputRegion);
const InternalImageType::SpacingType& spacing = reader->GetOutput()->GetSignedSpacing();
const InternalImageType::PointType& inputOrigin = reader->GetOutput()->GetOrigin();
double outputOrigin[InputDimension];
for (unsigned int i = 0; i < InputDimension; ++i)
{
outputOrigin[i] = inputOrigin[i] + spacing[i] * inputStart[i];
}
magnitude->SetSignedSpacing(spacing);
magnitude->SetOrigin(outputOrigin);
magnitude->Allocate();
ConstIteratorType inputIt(reader->GetOutput(), inputRegion);
IteratorType outputIt(magnitude, outputRegion);
for (inputIt.GoToBegin(), outputIt.GoToBegin(); !inputIt.IsAtEnd(); ++inputIt, ++outputIt)
{
outputIt.Set(inputIt.Get()[0]);
// std::cout << inputIt.Get()[0] << " - " << inputIt.Get()[1] << std::endl;
}
typedef itk::RescaleIntensityImageFilter<InternalImageType, OutputImageType> RescalerType;
RescalerType::Pointer rescaler = RescalerType::New();
rescaler->SetOutputMinimum(itk::NumericTraits<OutputPixelType>::min());
rescaler->SetOutputMaximum(itk::NumericTraits<OutputPixelType>::max());
rescaler->SetInput(magnitude);
typedef otb::ImageFileWriter<OutputImageType> WriterType;
WriterType::Pointer writer = WriterType::New();
writer->SetInput(rescaler->GetOutput());
writer->SetFileName(argv[2]);
writer->Update();
return EXIT_SUCCESS;
}
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