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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkClosingByReconstructionImageFilter.txx,v $
Language: C++
Date: $Date: 2006-08-01 19:16:17 $
Version: $Revision: 1.4 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm 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 __itkClosingByReconstructionImageFilter_txx
#define __itkClosingByReconstructionImageFilter_txx
#include "itkImageRegionIterator.h"
#include "itkImageRegionConstIterator.h"
#include "itkClosingByReconstructionImageFilter.h"
#include "itkGrayscaleDilateImageFilter.h"
#include "itkReconstructionByErosionImageFilter.h"
#include "itkProgressAccumulator.h"
namespace itk {
template <class TInputImage, class TOutputImage, class TKernel>
ClosingByReconstructionImageFilter<TInputImage, TOutputImage, TKernel>
::ClosingByReconstructionImageFilter()
: m_Kernel()
{
m_FullyConnected = false;
m_PreserveIntensities = false;
}
template <class TInputImage, class TOutputImage, class TKernel>
void
ClosingByReconstructionImageFilter<TInputImage, TOutputImage, TKernel>
::GenerateInputRequestedRegion()
{
// call the superclass' implementation of this method
Superclass::GenerateInputRequestedRegion();
// We need all the input.
InputImagePointer input = const_cast<InputImageType *>(this->GetInput());
if( input )
{
input->SetRequestedRegion( input->GetLargestPossibleRegion() );
}
}
template <class TInputImage, class TOutputImage, class TKernel>
void
ClosingByReconstructionImageFilter<TInputImage, TOutputImage, TKernel>
::EnlargeOutputRequestedRegion(DataObject *)
{
this->GetOutput()
->SetRequestedRegion( this->GetOutput()->GetLargestPossibleRegion() );
}
template <class TInputImage, class TOutputImage, class TKernel>
void
ClosingByReconstructionImageFilter<TInputImage, TOutputImage, TKernel>
::GenerateData()
{
// Create a process accumulator for tracking the progress of this minipipeline
ProgressAccumulator::Pointer progress = ProgressAccumulator::New();
progress->SetMiniPipelineFilter(this);
// Allocate the output
this->AllocateOutputs();
// Delegate to a dilate filter.
typename GrayscaleDilateImageFilter<TInputImage, TInputImage, TKernel>::Pointer
dilate = GrayscaleDilateImageFilter<TInputImage, TInputImage, TKernel>::New();
dilate->SetInput( this->GetInput() );
dilate->SetKernel( this->m_Kernel );
// Delegate to a dilate filter.
typename ReconstructionByErosionImageFilter<TInputImage, TInputImage>::Pointer
erode = ReconstructionByErosionImageFilter<TInputImage, TInputImage>::New();
erode->SetMarkerImage( dilate->GetOutput() );
erode->SetMaskImage( this->GetInput() );
erode->SetFullyConnected( m_FullyConnected );
if (m_PreserveIntensities)
{
erode->Update();
typename TInputImage::Pointer tempImage = TInputImage::New();
tempImage->SetRegions (dilate->GetOutput()->GetBufferedRegion());
tempImage->Allocate();
ImageRegionConstIterator<TInputImage> inputIt(this->GetInput(),
dilate->GetOutput()->GetBufferedRegion());
ImageRegionConstIterator<TInputImage> dilateIt(dilate->GetOutput(),
erode->GetOutput()->GetBufferedRegion());
ImageRegionConstIterator<TInputImage> erodeIt(erode->GetOutput(),
erode->GetOutput()->GetBufferedRegion());
ImageRegionIterator<TInputImage> tempIt(tempImage,
dilate->GetOutput()->GetBufferedRegion());
while (!dilateIt.IsAtEnd())
{
if (dilateIt.Get() == erodeIt.Get())
{
tempIt.Set(inputIt.Get());
}
else
{
tempIt.Set(NumericTraits<InputImagePixelType>::max());
}
++dilateIt;
++erodeIt;
++tempIt;
++inputIt;
}
typename ReconstructionByErosionImageFilter<TInputImage, TInputImage>::Pointer
erodeAgain = ReconstructionByErosionImageFilter<TInputImage, TInputImage>::New();
erodeAgain->SetMaskImage (this->GetInput());
erodeAgain->SetMarkerImage (tempImage);
erodeAgain->SetFullyConnected( m_FullyConnected );
erodeAgain->GraftOutput( this->GetOutput() );
progress->RegisterInternalFilter(erodeAgain, 0.25f);
erodeAgain->Update();
this->GraftOutput( erodeAgain->GetOutput() );
}
else
{
erode->GraftOutput( this->GetOutput() );
erode->Update();
this->GraftOutput( erode->GetOutput() );
}
}
template<class TInputImage, class TOutputImage, class TKernel>
void
ClosingByReconstructionImageFilter<TInputImage, TOutputImage, TKernel>
::PrintSelf(std::ostream &os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "Kernel: " << m_Kernel << std::endl;
os << indent << "FullyConnected: " << m_FullyConnected << std::endl;
os << indent << "PreserveIntensities: " << m_PreserveIntensities << std::endl;
}
}// end namespace itk
#endif
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