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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.
*/
#ifndef otbROIdataConversion_txx
#define otbROIdataConversion_txx
#include "itkVector.h"
#include "otbROIdataConversion.h"
#include "itkImageRegionIterator.h"
namespace otb
{
template <class TInputImage, class TInputROIImage>
ROIdataConversion<TInputImage, TInputROIImage>
::ROIdataConversion()
{
this->SetNumberOfRequiredInputs(2);
this->SetNumberOfRequiredInputs(2);
}
template <class TInputImage, class TInputROIImage>
void
ROIdataConversion<TInputImage, TInputROIImage>
::GenerateOutputInformation(void)
{
typename OutputImageType::Pointer outputPtr = this->GetOutput();
typename OutputImageType::SizeType outputSize = outputPtr->GetRequestedRegion().GetSize();
outputSize[0] = GetNumberOfSample();
outputPtr->SetRegions(outputSize);
}
template <class TInputImage, class TInputROIImage>
void
ROIdataConversion<TInputImage, TInputROIImage>
::GenerateInputRequestedRegion(void)
{
typename InputImageType::Pointer inputImagePtr = const_cast<InputImageType *>(this->GetInputImage());
typename InputROIImageType::Pointer inputROIPtr = this->GetROIImage();
inputImagePtr->SetRequestedRegion(inputImagePtr->GetLargestPossibleRegion());
inputROIPtr->SetRequestedRegion(inputROIPtr->GetLargestPossibleRegion());
}
template <class TInputImage, class TInputROIImage>
void
ROIdataConversion<TInputImage, TInputROIImage>
::GenerateData()
{
typename InputImageType::Pointer inputImagePtr = const_cast<InputImageType *>(this->GetInputImage());
typename InputROIImageType::ConstPointer inputROIPtr = this->GetROIImage();
typename OutputImageType::Pointer outputPtr = this->GetOutput();
outputPtr->Allocate();
typename InputImageType::PixelType zero;
itk::NumericTraits<typename InputImageType::PixelType>::SetLength(zero, outputPtr->GetNumberOfComponentsPerPixel());
outputPtr->FillBuffer(zero);
itk::ImageRegionConstIterator<InputImageType> inputIter
(inputImagePtr, inputImagePtr->GetRequestedRegion());
itk::ImageRegionConstIterator<InputROIImageType> trainingIter
(inputROIPtr, inputROIPtr->GetRequestedRegion());
itk::ImageRegionIterator<OutputImageType> outputIter
(outputPtr, outputPtr->GetRequestedRegion());
inputIter.GoToBegin();
trainingIter.GoToBegin();
outputIter.GoToBegin();
while (!trainingIter.IsAtEnd())
{
if (trainingIter.Get() != 0)
{
outputIter.Set(inputIter.Get());
++outputIter;
}
++inputIter;
++trainingIter;
}
}
template <class TInputImage, class TInputROIImage>
typename ROIdataConversion<TInputImage, TInputROIImage>::SizeValueType
ROIdataConversion<TInputImage, TInputROIImage>
::GetNumberOfSample()
{
InputROIImagePointerType inputROIPtr = GetROIImage();
itk::ImageRegionConstIterator<InputROIImageType> trainingIter(inputROIPtr, inputROIPtr->GetRequestedRegion());
trainingIter.GoToBegin();
SizeValueType count = 0L;
while (!trainingIter.IsAtEnd())
{
if (trainingIter.Get() != 0) count++;
++trainingIter;
}
return count;
}
} // end of namespace otb
#endif
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