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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.
*/
#include "otbImageFileReader.h"
#include "otbMeanShiftSmoothingImageFilter.h"
#include "otbPersistentFilterStreamingDecorator.h"
#include "otbDifferenceImageFilter.h"
#include "otbMultiChannelExtractROI.h"
#include <iomanip>
int otbMeanShiftSmoothingImageFilterSpatialStability(int argc, char* argv[])
{
if (argc != 10)
{
std::cerr << "Usage: " << argv[0]
<< " infname spatialdifffname spectraldifffname spatialBandwidth rangeBandwidth threshold maxiterationnumber startx starty sizex sizey"
<< std::endl;
return EXIT_FAILURE;
}
const char* infname = argv[1];
const double spatialBandwidth = atof(argv[2]);
const double rangeBandwidth = atof(argv[3]);
const double threshold = atof(argv[4]);
const unsigned int maxiterationnumber = atoi(argv[5]);
const unsigned int startX = atoi(argv[6]);
const unsigned int startY = atoi(argv[7]);
const unsigned int sizeX = atoi(argv[8]);
const unsigned int sizeY = atoi(argv[9]);
/* maxit - threshold */
const unsigned int Dimension = 2;
typedef float PixelType;
typedef otb::VectorImage<PixelType, Dimension> ImageType;
typedef otb::ImageFileReader<ImageType> ReaderType;
typedef otb::MeanShiftSmoothingImageFilter<ImageType, ImageType> FilterType;
typedef FilterType::OutputSpatialImageType SpatialImageType;
typedef SpatialImageType::InternalPixelType SpatialPixelType;
typedef otb::MultiChannelExtractROI<PixelType, PixelType> ExtractROIFilterType;
typedef otb::MultiChannelExtractROI<SpatialPixelType, SpatialPixelType> SpatialExtractROIFilterType;
typedef otb::PersistentFilterStreamingDecorator<otb::DifferenceImageFilter<ImageType, ImageType> >
SubtractFilterType;
typedef otb::PersistentFilterStreamingDecorator<otb::DifferenceImageFilter<SpatialImageType, SpatialImageType> >
SpatialSubtractFilterType;
// Instantiating object
FilterType::Pointer MSfilter = FilterType::New();
FilterType::Pointer MSfilterROI = FilterType::New();
ExtractROIFilterType::Pointer filterROI = ExtractROIFilterType::New();
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName(infname);
// first pipeline
// Set filter parameters
MSfilter->SetSpatialBandwidth(spatialBandwidth);
MSfilter->SetRangeBandwidth(rangeBandwidth);
MSfilter->SetThreshold(threshold);
MSfilter->SetMaxIterationNumber(maxiterationnumber);
MSfilter->SetInput(reader->GetOutput());
MSfilter->SetModeSearch(false);
MSfilter->Update();
// second pipeline
filterROI->SetInput(reader->GetOutput());
filterROI->SetStartX(startX);
filterROI->SetStartY(startY);
filterROI->SetSizeX(sizeX);
filterROI->SetSizeY(sizeY);
filterROI->UpdateOutputInformation();
MSfilterROI->SetSpatialBandwidth(spatialBandwidth);
MSfilterROI->SetRangeBandwidth(rangeBandwidth);
MSfilterROI->SetThreshold(threshold);
MSfilterROI->SetMaxIterationNumber(maxiterationnumber);
MSfilterROI->SetInput(filterROI->GetOutput());
MSfilterROI->SetModeSearch(false);
// GlobalShift ensure spatial stability
ImageType::IndexType globalShift;
globalShift[0] = startX;
globalShift[1] = startY;
MSfilterROI->SetGlobalShift(globalShift);
// compare output
const unsigned int border = maxiterationnumber * spatialBandwidth + 1;
const unsigned int startXROI2 = border;
const unsigned int startXROI = border + startX;
const unsigned int startYROI2 = border;
const unsigned int startYROI = border + startY;
const unsigned int sizeXROI = sizeX - 2 * border;
const unsigned int sizeYROI = sizeY - 2 * border;
SpatialExtractROIFilterType::Pointer filterROISpatial1 = SpatialExtractROIFilterType::New();
filterROISpatial1->SetInput(MSfilter->GetSpatialOutput());
filterROISpatial1->SetStartX(startXROI);
filterROISpatial1->SetStartY(startYROI);
filterROISpatial1->SetSizeX(sizeXROI);
filterROISpatial1->SetSizeY(sizeYROI);
SpatialExtractROIFilterType::Pointer filterROISpatial2 = SpatialExtractROIFilterType::New();
filterROISpatial2->SetInput(MSfilterROI->GetSpatialOutput());
filterROISpatial2->SetStartX(startXROI2);
filterROISpatial2->SetStartY(startYROI2);
filterROISpatial2->SetSizeX(sizeXROI);
filterROISpatial2->SetSizeY(sizeYROI);
SpatialSubtractFilterType::Pointer filterSubSpatial = SpatialSubtractFilterType::New();
filterSubSpatial->GetFilter()->SetValidInput(filterROISpatial1->GetOutput());
filterSubSpatial->GetFilter()->SetTestInput(filterROISpatial2->GetOutput());
filterSubSpatial->Update();
SpatialImageType::PixelType spatialOutputDiff = filterSubSpatial->GetFilter()->GetTotalDifference();
ExtractROIFilterType::Pointer filterROISpectral1 = ExtractROIFilterType::New();
filterROISpectral1->SetInput(MSfilter->GetRangeOutput());
filterROISpectral1->SetStartX(startXROI);
filterROISpectral1->SetStartY(startYROI);
filterROISpectral1->SetSizeX(sizeXROI);
filterROISpectral1->SetSizeY(sizeYROI);
ExtractROIFilterType::Pointer filterROISpectral2 = ExtractROIFilterType::New();
filterROISpectral2->SetInput(MSfilterROI->GetRangeOutput());
filterROISpectral2->SetStartX(startXROI2);
filterROISpectral2->SetStartY(startYROI2);
filterROISpectral2->SetSizeX(sizeXROI);
filterROISpectral2->SetSizeY(sizeYROI);
SubtractFilterType::Pointer filterSubSpectral = SubtractFilterType::New();
filterSubSpectral->GetFilter()->SetValidInput(filterROISpectral1->GetOutput());
filterSubSpectral->GetFilter()->SetTestInput(filterROISpectral2->GetOutput());
filterSubSpectral->Update();
ImageType::PixelType spectralOutputDiff = filterSubSpectral->GetFilter()->GetTotalDifference();
bool spatialUnstable = false;
bool spectralUnstable = false;
for (unsigned int i = 0; i < spatialOutputDiff.Size(); ++i)
{
if (spatialOutputDiff[i] > 0)
{
spatialUnstable = true;
}
}
for (unsigned int i = 0; i < spectralOutputDiff.Size(); ++i)
{
if (spectralOutputDiff[i] > 0)
{
spectralUnstable = true;
}
}
std::cerr << std::setprecision(10);
if (spatialUnstable)
{
std::cerr << "Spatial output is unstable (total difference = " << spatialOutputDiff << ")" << std::endl;
}
if (spectralUnstable)
{
std::cerr << "Spectral output is unstable (total difference = " << spectralOutputDiff << ")" << std::endl;
}
if (spatialUnstable || spectralUnstable)
{
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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