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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 <iostream>
#include <fstream>
#include "otbImage.h"
#include "itkImageRegionIterator.h"
#include "otbLog10ThresholdedImageFilter.h"
int otbLog10ThresholdedImageFilterTest(int argc, char* argv[])
{
if (argc != 2)
{
std::cout << "Invalid arguments -> need only output filename" << std::endl;
return EXIT_FAILURE;
}
// TYPEDEFS
typedef double PixelType;
typedef otb::Image<PixelType, 2> ImageType;
typedef ImageType::RegionType RegionType;
typedef ImageType::SizeType SizeType;
typedef ImageType::IndexType IndexType;
typedef itk::ImageRegionIterator<ImageType> IteratorType;
typedef otb::Log10ThresholdedImageFilter<ImageType, ImageType> FilterType;
// INSTANTIATIONS
ImageType::Pointer image = ImageType::New();
ImageType::Pointer imageOut = ImageType::New();
FilterType::Pointer filter = FilterType::New();
std::ofstream file;
file.open(argv[1]);
RegionType region;
SizeType size;
size.Fill(5);
IndexType orig;
orig.Fill(0);
region.SetSize(size);
region.SetIndex(orig);
image->SetRegions(region);
image->Allocate();
image->FillBuffer(0.);
IteratorType it(image, image->GetLargestPossibleRegion());
it.GoToBegin();
double val = 0.;
while (!it.IsAtEnd())
{
val = 0.000001 * (double) pow((double) 10.0, (int) (it.GetIndex()[0] + it.GetIndex()[1]));
if (it.GetIndex()[0] + it.GetIndex()[1] > 6)
it.Set(itk::NumericTraits<PixelType>::quiet_NaN());
else it.Set(static_cast<PixelType> (val));
++it;
}
filter->SetInput(image);
filter->SetThresholdedValue(0.002); // -> -26.9897 dB
filter->Update();
IteratorType itOut(filter->GetOutput(), image->GetLargestPossibleRegion());
itOut.GoToBegin();
it.GoToBegin();
while (!itOut.IsAtEnd() && !it.IsAtEnd())
{
std::cout << "Input Value : " << it.Get() << ", "\
<< "Output Value : " << itOut.Get() << " dB" \
<< std::endl;
file << "val[" << it.GetIndex() << "] = " << itOut.Get() << " dB" << std::endl;
++itOut;
++it;
}
file.close();
return EXIT_SUCCESS;
}
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