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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 "otbImage.h"
#include "otbImageFileReader.h"
#include "otbVectorDataFileReader.h"
#include "otbLabelImageToVectorDataFilter.h"
#include "otbVectorDataToLabelImageFilter.h"
#include "otbStandardOneLineFilterWatcher.h"
#include "itkNumericTraits.h"
#include "itkImageRegionConstIteratorWithIndex.h"
int otbPolygonizationRasterizationTest(int itkNotUsed(argc), char* argv[])
{
typedef unsigned int PixelType;
typedef otb::Image<PixelType, 2> ImageType;
typedef otb::ImageFileReader<ImageType> ReaderType;
typedef otb::VectorData<> VectorDataType;
typedef otb::LabelImageToVectorDataFilter<ImageType> LabelImageToVDFilterType;
typedef otb::VectorDataToLabelImageFilter<VectorDataType, ImageType> RasterizationFilterType;
// Read the label image
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName(argv[1]);
// Instantiate a LabelImageToVectorData filter
LabelImageToVDFilterType::Pointer polygonize = LabelImageToVDFilterType::New();
polygonize->SetInput(reader->GetOutput());
polygonize->Update();
// rasterize
RasterizationFilterType::Pointer rasterization = RasterizationFilterType::New();
rasterization->AddVectorData(polygonize->GetOutput());
rasterization->SetOutputParametersFromImage(reader->GetOutput());
rasterization->SetBurnAttribute("DN");
rasterization->Update();
// Compare the input label image and the output of the rasterization
// filter, they must be exactly similar
itk::ImageRegionConstIteratorWithIndex<ImageType> itRef(reader->GetOutput(), reader->GetOutput()->GetLargestPossibleRegion());
itk::ImageRegionConstIteratorWithIndex<ImageType> itTest(rasterization->GetOutput(), rasterization->GetOutput()->GetLargestPossibleRegion());
for (itRef.GoToBegin(), itTest.GoToBegin(); !itRef.IsAtEnd() && !itTest.IsAtEnd(); ++itRef, ++itTest)
{
if (itRef.Get() != itTest.Get())
{
std::cerr << "Pixel at position " << itRef.GetIndex() << " differs : in=" << itRef.Get() << " while out=" << itTest.Get() << std::endl;
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
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