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/*
//
// Copyright 1997-2009 Torsten Rohlfing
// Copyright 2004-2009 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 __cmtkPointSpreadFunctionBox_h_included_
#define __cmtkPointSpreadFunctionBox_h_included_
#include <cmtkconfig.h>
namespace
cmtk
{
/** \addtogroup Recon */
//@{
/// Point spread functions for iterative deblurring.
namespace
PointSpreadFunctions
{
/// Box point-spread function.
class Box
{
public:
/// This class.
typedef Box Self;
/// Smart pointer.
typedef SmartPointer<Self> SmartPtr;
/// Constructor.
Box( const Vector3D& pixelSize )
{
this->m_Radius = 0.5 * pixelSize;
}
/// Get truncation radius.
Types::Coordinate GetTruncationRadius( const int dim ) const
{
return this->m_Radius[dim];
}
/// Get the weight for a neighbor based on its radius from the kernel center.
Types::Coordinate GetWeight( const int dim, const Types::Coordinate r ) const
{
if ( fabs( r ) <= this->m_Radius[dim] )
{
return 1.0;
}
return 0.0;
}
private:
/// Kernel radius.
Vector3D m_Radius;
};
} // namespace PointSpreadFunctions
//@}
} // namespace cmtk
#endif
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