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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:
./LeeImageFilter Input/GomaSmall.png Output/GomaSmallLeeFiltered.png 3 1
*/
#include "otbLeeImageFilter.h"
#include "otbImage.h"
#include "otbImageFileReader.h"
#include "otbImageFileWriter.h"
int main(int argc, char* argv[])
{
if (argc != 5)
{
std::cerr << "Usage: " << argv[0] << " inputImageFile ";
std::cerr << " outputImageFile radius NbLooks" << std::endl;
return EXIT_FAILURE;
}
using PixelType = unsigned char;
// The images are defined using the pixel type and the dimension.
using InputImageType = otb::Image<PixelType, 2>;
using OutputImageType = otb::Image<PixelType, 2>;
// The filter can be instantiated using the image types defined above.
using FilterType = otb::LeeImageFilter<InputImageType, OutputImageType>;
// An ImageFileReader class is also instantiated in order to read
// image data from a file.
using ReaderType = otb::ImageFileReader<InputImageType>;
// An ImageFileWriter is instantiated in order to write the
// output image to a file.
using WriterType = otb::ImageFileWriter<OutputImageType>;
// Both the filter and the reader are created by invoking their New()
// methods and assigning the result to SmartPointers.
ReaderType::Pointer reader = ReaderType::New();
FilterType::Pointer filter = FilterType::New();
WriterType::Pointer writer = WriterType::New();
writer->SetInput(filter->GetOutput());
reader->SetFileName(argv[1]);
// The image obtained with the reader is passed as input to the
// LeeImageFilter.
filter->SetInput(reader->GetOutput());
// The method SetRadius() defines the size of the window to
// be used for the computation of the local statistics. The method
// SetNbLooks() sets the number of looks of the input
// image.
FilterType::SizeType Radius;
Radius[0] = atoi(argv[3]);
Radius[1] = atoi(argv[3]);
filter->SetRadius(Radius);
filter->SetNbLooks(atoi(argv[4]));
writer->SetFileName(argv[2]);
writer->Update();
}
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