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/*
* Copyright (C) 2005-2020 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 "otbBinaryImageDensityFunction.h"
#include "otbImage.h"
#include "otbImageFileReader.h"
#include <iostream>
int otbBinaryImageDensityFunction(int itkNotUsed(argc), char* argv[])
{
const char* infname = argv[1];
const char* outfname = argv[2];
const unsigned int Dimension = 2;
typedef float PixelType;
typedef otb::Image<PixelType, Dimension> InputImageType;
typedef InputImageType::IndexType IndexType;
typedef otb::ImageFileReader<InputImageType> ReaderType;
typedef otb::BinaryImageDensityFunction<InputImageType> FunctionType;
/**Instantiation ofa Smart Pointer*/
FunctionType::Pointer filter = FunctionType::New();
ReaderType::Pointer reader = ReaderType::New();
std::ofstream outfile(outfname);
/** Input Image*/
reader->SetFileName(infname);
reader->Update();
/** Computing the density around a pixel */
filter->SetInputImage(reader->GetOutput());
filter->SetNeighborhoodRadius(2);
/** Test on some indexes and some physical coordinates*/
InputImageType::SizeType size = reader->GetOutput()->GetRequestedRegion().GetSize();
FunctionType::PointType pDst;
IndexType index;
index[0] = 0;
index[1] = 0;
outfile << "Density computed for the point : " << index << " is " << filter->EvaluateAtIndex(index) << std::endl;
index[0] = static_cast<unsigned int>(size[0] / 2.);
index[1] = static_cast<unsigned int>(size[1] / 4.);
outfile << "Density computed for the point : " << index << " is " << filter->EvaluateAtIndex(index) << std::endl;
pDst[0] = static_cast<unsigned int>(size[0] / 2.);
pDst[1] = static_cast<unsigned int>(size[1] / 4.);
outfile << "Density computed for the point : " << pDst << " is " << filter->Evaluate(pDst) << std::endl;
outfile.close();
return EXIT_SUCCESS;
}
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