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/*
* Copyright (C) 2005-2022 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.
*/
/* Example usage:
./Pipeline Input/QB_Suburb.png Output/TutorialsPipelineOutput.png
*/
// Start by including some necessary headers and with the
// usual \code{main} declaration:
#include "otbImage.h"
#include "otbImageFileReader.h"
#include "otbImageFileWriter.h"
int main(int argc, char* argv[])
{
if (argc != 3)
{
std::cerr << "Usage: " << argv[0] << " <input_filename> <output_filename>" << std::endl;
}
// Declare the image as an \doxygen{otb}{Image}, the pixel type
// is declared as an unsigned char (one byte) and the image is specified as
// having two dimensions.
using ImageType = otb::Image<unsigned char, 2>;
// To read the image, we need an \doxygen{otb}{ImageFileReader}
// which is templated with the image type.
using ReaderType = otb::ImageFileReader<ImageType>;
ReaderType::Pointer reader = ReaderType::New();
// Then, we need an \doxygen{otb}{ImageFileWriter}
// also templated with the image type.
using WriterType = otb::ImageFileWriter<ImageType>;
WriterType::Pointer writer = WriterType::New();
// The filenames are passed as arguments to the program. We keep it
// simple for now and we don't check their validity.
reader->SetFileName(argv[1]);
writer->SetFileName(argv[2]);
// Now that we have all the elements, we connect the pipeline,
// plugging the output of the reader to the input of the writer.
writer->SetInput(reader->GetOutput());
// And finally, we trigger the pipeline execution calling the Update()
// method on the last element of the pipeline. The last element will make
// sure to update all previous elements in the pipeline.
writer->Update();
return EXIT_SUCCESS;
}
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