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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 "otbVectorImage.h"
#include "otbImageFileReader.h"
#include "otbImageFileWriter.h"
#include "otbCommandProgressUpdate.h"
#include "otbCommandLineArgumentParser.h"
#include "otbPCAImageFilter.h"
int otbPCAImageFilterNewTest ( int itkNotUsed(argc), char* itkNotUsed(argv) [] )
{
const unsigned int Dimension = 2;
typedef double PixelType;
typedef otb::VectorImage< PixelType, Dimension > ImageType;
typedef otb::PCAImageFilter< ImageType, ImageType, otb::Transform::FORWARD > FilterType;
FilterType::Pointer filter = FilterType::New();
typedef otb::PCAImageFilter< ImageType, ImageType, otb::Transform::INVERSE > InvFilterType;
InvFilterType::Pointer invFilter = InvFilterType::New();
return EXIT_SUCCESS;
}
int otbPCAImageFilterTest ( int argc, char* argv[] )
{
typedef otb::CommandLineArgumentParser ParserType;
ParserType::Pointer parser = ParserType::New();
parser->AddInputImage();
parser->AddOption( "--NumComponents", "Number of components to keep for output", "-n", 1, false );
parser->AddOption( "--Inverse", "Performs also the inverse transformation (give the output name)", "-inv", 1, false );
parser->AddOption( "--Normalize", "center AND reduce data before PCA", "-norm", 0, false );
parser->AddOutputImage();
typedef otb::CommandLineArgumentParseResult ParserResultType;
ParserResultType::Pointer parseResult = ParserResultType::New();
try
{
parser->ParseCommandLine( argc, argv, parseResult );
}
catch( itk::ExceptionObject & err )
{
std::cerr << argv[0] << " applies PCA transformations\n";
std::string descriptionException = err.GetDescription();
if ( descriptionException.find("ParseCommandLine(): Help Parser")
!= std::string::npos )
return EXIT_SUCCESS;
if(descriptionException.find("ParseCommandLine(): Version Parser")
!= std::string::npos )
return EXIT_SUCCESS;
return EXIT_FAILURE;
}
std::string inputImageName = parseResult->GetInputImage();
std::string outputImageName = parseResult->GetOutputImage();
const unsigned int nbComponents = parseResult->IsOptionPresent("--NumComponents") ?
parseResult->GetParameterUInt("--NumComponents") : 0;
const bool normalization = parseResult->IsOptionPresent("--Normalize");
// Main type definition
const unsigned int Dimension = 2;
typedef double PixelType;
typedef otb::VectorImage< PixelType, Dimension > ImageType;
// Reading input images
typedef otb::ImageFileReader<ImageType> ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName(inputImageName);
// Image filtering
typedef otb::PCAImageFilter< ImageType, ImageType, otb::Transform::FORWARD > FilterType;
FilterType::Pointer filter = FilterType::New();
filter->SetInput( reader->GetOutput() );
filter->SetNumberOfPrincipalComponentsRequired( nbComponents );
filter->SetUseNormalization( normalization );
typedef otb::CommandProgressUpdate< FilterType > CommandType;
CommandType::Pointer observer = CommandType::New();
filter->AddObserver( itk::ProgressEvent(), observer );
// Writing
typedef otb::ImageFileWriter< ImageType > ImageWriterType;
ImageWriterType::Pointer writer = ImageWriterType::New();
writer->SetFileName( outputImageName );
writer->SetInput( filter->GetOutput() );
writer->Update();
if ( parseResult->IsOptionPresent("--Inverse") )
{
typedef otb::PCAImageFilter< ImageType, ImageType, otb::Transform::INVERSE > InvFilterType;
InvFilterType::Pointer invFilter = InvFilterType::New();
invFilter->SetInput( filter->GetOutput() );
if ( normalization )
{
invFilter->SetMeanValues( filter->GetMeanValues() );
invFilter->SetStdDevValues( filter->GetStdDevValues() );
}
invFilter->SetTransformationMatrix( filter->GetTransformationMatrix() );
typedef otb::CommandProgressUpdate< InvFilterType > CommandType2;
CommandType2::Pointer invObserver = CommandType2::New();
invFilter->AddObserver( itk::ProgressEvent(), invObserver );
ImageWriterType::Pointer invWriter = ImageWriterType::New();
invWriter->SetFileName( parseResult->GetParameterString("--Inverse") );
invWriter->SetInput( invFilter->GetOutput() );
invWriter->Update();
}
return EXIT_SUCCESS;
}
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