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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* 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.txt
*
* 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 itkWatershedEquivalenceRelabeler_hxx
#define itkWatershedEquivalenceRelabeler_hxx
#include "itkWatershedEquivalenceRelabeler.h"
#include "itkImageRegionIterator.h"
namespace itk
{
namespace watershed
{
template< typename TScalar, unsigned int TImageDimension >
void EquivalenceRelabeler< TScalar, TImageDimension >
::GenerateData()
{
typename ImageType::ConstPointer input = this->GetInputImage();
typename ImageType::Pointer output = this->GetOutputImage();
typename EquivalencyTableType::Pointer eqT = this->GetEquivalencyTable();
output->SetBufferedRegion( output->GetRequestedRegion() );
output->Allocate();
//
// Copy input to output
//
ImageRegionConstIterator< ImageType > it_a( input, output->GetRequestedRegion() );
ImageRegionIterator< ImageType > it_b( output, output->GetRequestedRegion() );
it_a.GoToBegin();
it_b.GoToBegin();
while ( !it_a.IsAtEnd() )
{
it_b.Set( it_a.Get() );
++it_a;
++it_b;
}
eqT->Flatten();
SegmenterType::RelabelImage(output, output->GetRequestedRegion(), eqT);
}
template< typename TScalar, unsigned int VImageDimension >
void EquivalenceRelabeler< TScalar, VImageDimension >
::GenerateInputRequestedRegion()
{
// call the superclass' implementation of this method
Superclass::GenerateInputRequestedRegion();
// get pointers to the input and output
ImageType *inputPtr = const_cast< ImageType * >( this->GetInputImage() );
ImageType *outputPtr = this->GetOutputImage();
if ( !inputPtr || !outputPtr )
{
return;
}
//
// FOR NOW WE'LL JUST SET THE INPUT REGION TO THE OUTPUT REGION
// FOR STREAMING WITHIN THE PIPELINE NEED TO FIX THIS
//
inputPtr->SetRequestedRegion( outputPtr->GetRequestedRegion() );
}
template< typename TScalar, unsigned int TImageDimension >
void EquivalenceRelabeler< TScalar, TImageDimension >
::GenerateOutputRequestedRegion(DataObject *output)
{
// Only the Image output need to be propagated through.
// No choice but to use RTTI here.
// All Image outputs set to the same RequestedRegion other
// outputs ignored.
ImageBase< ImageDimension > *imgData;
ImageBase< ImageDimension > *op;
imgData = dynamic_cast< ImageBase< ImageDimension > * >( output );
if ( imgData )
{
std::vector< ProcessObject::DataObjectPointer >::size_type idx;
for ( idx = 0; idx < this->GetNumberOfIndexedOutputs(); ++idx )
{
if ( this->GetOutput(idx) && this->GetOutput(idx) != output )
{
op = dynamic_cast< ImageBase< ImageDimension > * >( this->GetOutput(idx) );
if ( op ) { this->GetOutput(idx)->SetRequestedRegion(output); }
}
}
}
}
template< typename TScalar, unsigned int TImageDimension >
void EquivalenceRelabeler< TScalar, TImageDimension >
::PrintSelf(std::ostream & os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
}
template< typename TScalar, unsigned int TImageDimension >
typename EquivalenceRelabeler< TScalar, TImageDimension >::DataObjectPointer
EquivalenceRelabeler< TScalar, TImageDimension >
::MakeOutput(DataObjectPointerArraySizeType)
{
return ImageType::New().GetPointer();
}
} // end namespace watershed
} // end namespace itk
#endif
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