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/*
* 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 "otbImageFileReader.h"
#include "otbImageFileWriter.h"
#include "otbExtractROI.h"
#include "itkIdentityTransform.h"
#include "otbStreamingResampleImageFilter.h"
// Pipeline reader -> Resampler (with Identity transform) -> ExtractROI
// -> Writer
// the resample is optionally removed with the command line parameter.
//
int otbExtractROIResample(int argc, char* argv[])
{
if (argc < 4)
{
std::cout << argv[0] << " <input filename> <output filename> <use resample>" << std::endl;
return EXIT_FAILURE;
}
bool useResample = true;
if (atoi(argv[3]) == 0)
{
useResample = false;
}
unsigned int startX = 10;
unsigned int startY = 10;
unsigned int sizeX = 100;
unsigned int sizeY = 100;
typedef double PixelType;
typedef otb::Image<PixelType, 2> ImageType;
typedef otb::ImageFileReader<ImageType> ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName(argv[1]);
reader->UpdateOutputInformation();
typedef itk::IdentityTransform<double, 2> IdentityTransformType;
IdentityTransformType::Pointer transform = IdentityTransformType::New();
typedef otb::StreamingResampleImageFilter<ImageType, ImageType, double> ResampleType;
ResampleType::Pointer filterResample = ResampleType::New();
filterResample->SetInput(reader->GetOutput());
filterResample->SetTransform(transform);
filterResample->SetOutputSize(reader->GetOutput()->GetLargestPossibleRegion().GetSize());
typedef otb::ExtractROI<PixelType, PixelType> ExtractROIType;
ExtractROIType::Pointer filterResampleRoi = ExtractROIType::New();
filterResampleRoi->SetStartX(startX);
filterResampleRoi->SetStartY(startY);
filterResampleRoi->SetSizeX(sizeX);
filterResampleRoi->SetSizeY(sizeY);
if (useResample)
{
filterResampleRoi->SetInput(filterResample->GetOutput());
}
else
{
filterResampleRoi->SetInput(reader->GetOutput());
}
typedef otb::ImageFileWriter<ImageType> WriterType;
WriterType::Pointer streamingWriter = WriterType::New();
streamingWriter->SetFileName(argv[2]);
streamingWriter->SetInput(filterResampleRoi->GetOutput());
streamingWriter->Update();
return EXIT_SUCCESS;
}
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