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/*
//
// Copyright 2009-2011 SRI International
//
// This file is part of the Computational Morphometry Toolkit.
//
// http://www.nitrc.org/projects/cmtk/
//
// The Computational Morphometry Toolkit is free software: you can
// redistribute it and/or modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// The Computational Morphometry Toolkit is distributed in the hope that it
// will be useful, but WITHOUT ANY WARRANTY; without even the implied
// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with the Computational Morphometry Toolkit. If not, see
// <http://www.gnu.org/licenses/>.
//
// $Revision: 5436 $
//
// $LastChangedDate: 2018-12-10 19:01:20 -0800 (Mon, 10 Dec 2018) $
//
// $LastChangedBy: torstenrohlfing $
//
*/
#ifndef __cmtkImageOperationDownsample_h_included_
#define __cmtkImageOperationDownsample_h_included_
#include <cmtkconfig.h>
#include <Base/cmtkImageOperation.h>
namespace
cmtk
{
/** \addtogroup Base */
//@{
/// Image operation: grid downsampling.
class ImageOperationDownsample
/// Inherit from image operation base class.
: public ImageOperation
{
public:
/// This class.
typedef ImageOperationDownsample Self;
/// Apply this operation to an image in place.
virtual cmtk::UniformVolume::SmartPtr Apply( cmtk::UniformVolume::SmartPtr& volume );
/// Create a new selecting downsampler.
static void NewSelect( const char* arg )
{
Self::NewGeneric( false /*doAverage*/, arg );
}
/// Create a new averaging downsampler.
static void NewAverage( const char* arg )
{
Self::NewGeneric( true /*doAverage*/, arg );
}
private:
/// Constructor:
ImageOperationDownsample( const bool doAverage, const int factorX, const int factorY, const int factorZ ) : m_DoAverage( doAverage ), m_FactorX( factorX ), m_FactorY( factorY ), m_FactorZ( factorZ ) {}
/// Create a new generic downsampler.
static void NewGeneric( const bool doAverage, const char* arg );
/// Flag for averaging vs. selecting downsampling.
bool m_DoAverage;
/// Downsampling factor in X direction.
int m_FactorX;
/// Downsampling factor in Y direction.
int m_FactorY;
/// Downsampling factor in Z direction.
int m_FactorZ;
};
//@}
} // namespace cmtk
#endif // #ifndef __cmtkImageOperationDownsample_h_included_
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