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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:
./PrintableImageFilterExample Input/IMAGERY_SSECH.tif Output/PrintableExampleOutput1.jpg 1 2 3
*/
/* Example usage:
./PrintableImageFilterExample Input/IMAGERY_SSECH.tif Output/PrintableExampleOutput2.jpg 1 4 2
*/
#include "otbVectorImage.h"
#include "otbImageFileReader.h"
#include "otbImageFileWriter.h"
#include "otbPrintableImageFilter.h"
int main(int argc, char* argv[])
{
if (argc != 6)
{
std::cerr << "Usage: " << argv[0] << " <inputImageFile> ";
std::cerr << " <outputImageFile> <RedBand> <GreenBand> <BlueBand>" << std::endl;
return EXIT_FAILURE;
}
const char* inputFilename = argv[1];
const char* outputFilename = argv[2];
int redChannelNumber = atoi(argv[3]);
int greenChannelNumber = atoi(argv[4]);
int blueChannelNumber = atoi(argv[5]);
using InputPixelType = double;
const unsigned int Dimension = 2;
using InputImageType = otb::VectorImage<InputPixelType, Dimension>;
using ReaderType = otb::ImageFileReader<InputImageType>;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName(inputFilename);
// To easily convert the image to a printable format, i.e. 3 bands
// unsigned char value, you can use the PrintableImageFilter.
using PrintableFilterType = otb::PrintableImageFilter<InputImageType>;
PrintableFilterType::Pointer printableImageFilter = PrintableFilterType::New();
printableImageFilter->SetInput(reader->GetOutput());
printableImageFilter->SetChannel(redChannelNumber);
printableImageFilter->SetChannel(greenChannelNumber);
printableImageFilter->SetChannel(blueChannelNumber);
// When you create the writer to plug at the output of the printableImageFilter
// you may want to use the direct type definition as it is a good way to avoid mismatch:
using OutputImageType = PrintableFilterType::OutputImageType;
using WriterType = otb::ImageFileWriter<OutputImageType>;
WriterType::Pointer writer = WriterType::New();
writer->SetFileName(outputFilename);
writer->SetInput(printableImageFilter->GetOutput());
writer->Update();
}
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