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/*
//
// Copyright 2004-2012 SRI International
//
// Copyright 1997-2009 Torsten Rohlfing
//
// 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 __cmtkUniformVolumeGaussianFilter_h_included_
#define __cmtkUniformVolumeGaussianFilter_h_included_
#include <cmtkconfig.h>
#include <Base/cmtkDataGridFilter.h>
#include <Base/cmtkUniformVolume.h>
#include <Base/cmtkUnits.h>
namespace
cmtk
{
/** \addtogroup Base */
//@{
/** Filter operations for 3D uniform image data.
*/
class UniformVolumeGaussianFilter :
/// Prevent copying by inheritance.
private DataGridFilter
{
public:
/// This class.
typedef UniformVolumeGaussianFilter Self;
/// Constructor: link to UniformVolume object.
explicit UniformVolumeGaussianFilter( UniformVolume::SmartConstPtr& volume ) : DataGridFilter( volume ), m_UniformVolume( volume ) {}
/// Gaussian filter (using faster, separable filtering).
TypedArray::SmartPtr GetFiltered3D( const Units::GaussianSigma& sigma, /*!< Kernel parameter "sigma" (standard deviation) */
const Types::Coordinate maxError = 0.01 /*!< Maximum approximation error: the kernel is truncated when it falls below this threshold */ ) const;
/// Gaussian 1D filter.
TypedArray::SmartPtr GetFiltered1D( const int direction /*!< Coordinate direction: 0 = x, 1 = y, 2 = z */,
const Units::GaussianSigma& sigma, /*!< Kernel parameter "sigma" (standard deviation) */
const Types::Coordinate maxError = 0.01 /*!< Maximum approximation error: the kernel is truncated when it falls below this threshold */ ) const;
private:
/// The UniformVolume object we're working on.
UniformVolume::SmartConstPtr m_UniformVolume;
};
} // namespace cmtk
#endif // #ifndef __cmtkUniformVolumeGaussianFilter_h_included_
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