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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 itkCropImageFilter_hxx
#define itkCropImageFilter_hxx
#include "itkCropImageFilter.h"
namespace itk
{
template< typename TInputImage, typename TOutputImage >
void
CropImageFilter< TInputImage, TOutputImage >
::GenerateOutputInformation()
{
const TInputImage *inputPtr = this->GetInput();
if ( !inputPtr )
{
return;
}
// Compute the new region size
OutputImageRegionType croppedRegion;
SizeType sz;
OutputImageIndexType idx;
InputImageSizeType input_sz =
inputPtr->GetLargestPossibleRegion().GetSize();
InputImageIndexType input_idx =
inputPtr->GetLargestPossibleRegion().GetIndex();
for( unsigned int i = 0; i < InputImageDimension; ++i )
{
idx[i] = input_idx[i] + m_LowerBoundaryCropSize[i];
sz[i] = input_sz[i] - ( m_UpperBoundaryCropSize[i] + m_LowerBoundaryCropSize[i] );
}
croppedRegion.SetSize(sz);
croppedRegion.SetIndex(idx);
// Set extraction region in the superclass
this->SetExtractionRegion(croppedRegion);
Superclass::GenerateOutputInformation();
}
template< typename TInputImage, typename TOutputImage >
void
CropImageFilter< TInputImage, TOutputImage >
::PrintSelf(std::ostream & os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "UpperBoundaryCropSize: " << m_UpperBoundaryCropSize
<< std::endl;
os << indent << "LowerBoundaryCropSize: " << m_LowerBoundaryCropSize
<< std::endl;
}
} // end namespace itk
#endif
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