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/*=========================================================================
Program: ORFEO Toolbox
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Centre National d'Etudes Spatiales. All rights reserved.
See OTBCopyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef otbMatrixImageFilter_txx
#define otbMatrixImageFilter_txx
#include "otbMatrixImageFilter.h"
#include "itkImageRegionIterator.h"
#include "itkProgressReporter.h"
namespace otb
{
/**
*
*/
template <class TInputImage, class TOutputImage, class TMatrix>
MatrixImageFilter<TInputImage, TOutputImage, TMatrix>::MatrixImageFilter() : m_MatrixByVector(false)
{
}
template <class TInputImage, class TOutputImage, class TMatrix>
void MatrixImageFilter<TInputImage, TOutputImage, TMatrix>::GenerateOutputInformation()
{
// call the superclass' implementation of this method
Superclass::GenerateOutputInformation();
if ( m_MatrixByVector )
{
if( this->GetInput()->GetNumberOfComponentsPerPixel() != m_Matrix.cols() )
{
itkExceptionMacro("Invalid Matrix size. Number of columns must be the same as the image number of channels.");
}
if( m_Matrix.rows() == 0 )
{
itkExceptionMacro("Invalid Matrix size. Number of rows can't be null.");
}
this->GetOutput()->SetNumberOfComponentsPerPixel( m_Matrix.rows() );
}
if ( !m_MatrixByVector )
{
if( this->GetInput()->GetNumberOfComponentsPerPixel() != m_Matrix.rows() )
{
itkExceptionMacro("Invalid Matrix size. Number of rows must be the same as the image number of channels.");
}
if( m_Matrix.cols() == 0 )
{
itkExceptionMacro("Invalid Matrix size. Number of columns can't be null.");
}
this->GetOutput()->SetNumberOfComponentsPerPixel( m_Matrix.cols() );
}
}
template<class TInputImage, class TOutputImage, class TMatrix>
void MatrixImageFilter<TInputImage, TOutputImage, TMatrix>::ThreadedGenerateData(
const OutputImageRegionType& outputRegionForThread,
itk::ThreadIdType threadId
)
{
// images pointer
typename OutputImageType::Pointer outputPtr = this->GetOutput();
typename InputImageType::ConstPointer inputPtr = this->GetInput();
typename itk::ImageRegionConstIterator<InputImageType> inIt( inputPtr, outputRegionForThread);
itk::ImageRegionIterator<OutputImageType> outIt( outputPtr, outputRegionForThread);
// support progress methods/callbacks
itk::ProgressReporter progress(this, threadId, outputRegionForThread.GetNumberOfPixels());
inIt.GoToBegin();
outIt.GoToBegin();
const unsigned int inSize = m_MatrixByVector ? m_Matrix.cols() : m_Matrix.rows();
const unsigned int outSize = m_MatrixByVector ? m_Matrix.rows() : m_Matrix.cols();
VectorType inVect(inSize, InputRealType(0.));
VectorType outVect(outSize, InputRealType(0.));
while (!outIt.IsAtEnd())
{
const InputPixelType & inPix = inIt.Get();
OutputPixelType outPix;
outPix.SetSize(outSize);
for(unsigned int i=0; i<inSize; ++i)
{
inVect[i] = static_cast<InputRealType>(inPix[i]);
}
outVect = m_MatrixByVector ? m_Matrix*inVect : inVect*m_Matrix;
for(unsigned int i=0; i<outSize; ++i)
{
outPix[i] = static_cast<OutputInternalPixelType>(outVect[i]);
}
outIt.Set(outPix);
++inIt;
++outIt;
progress.CompletedPixel();
}
}
/**
* Standard "PrintSelf" method
*/
template <class TInputImage, class TOutputImage, class TMatrix>
void
MatrixImageFilter<TInputImage, TOutputImage, TMatrix>::PrintSelf(std::ostream& os, itk::Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "Matrix: " << m_Matrix << std::endl;
os << indent << "MatrixByVector: " << m_MatrixByVector << std::endl;
}
} // end namespace otb
#endif
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