/usr/include/InsightToolkit/Review/itkHeavisideStepFunctionBase.h is in libinsighttoolkit3-dev 3.20.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | /*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkHeavisideStepFunctionBase.h
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef __itkHeavisideStepFunctionBase_h
#define __itkHeavisideStepFunctionBase_h
#include "itkFunctionBase.h"
namespace itk
{
/** \class HeavisideStepFunctionBase
*
* \brief Base class of the Heaviside function.
*
* \author Mosaliganti K., Smith B., Gelas A., Gouaillard A., Megason S.
*
* This code was taken from the Insight Journal paper:
*
* "Cell Tracking using Coupled Active Surfaces for Nuclei and Membranes"
* http://www.insight-journal.org/browse/publication/642
* http://hdl.handle.net/10380/3055
*
* That is based on the papers:
*
* "Level Set Segmentation: Active Contours without edge"
* http://www.insight-journal.org/browse/publication/322
* http://hdl.handle.net/1926/1532
*
* and
*
* "Level set segmentation using coupled active surfaces"
* http://www.insight-journal.org/browse/publication/323
* http://hdl.handle.net/1926/1533
*
*
*/
template< typename TInput = float, typename TOutput = double >
class HeavisideStepFunctionBase : public FunctionBase< TInput, TOutput >
{
public:
typedef HeavisideStepFunctionBase Self;
typedef FunctionBase< TInput, TOutput > Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
typedef typename Superclass::InputType InputType;
typedef typename Superclass::OutputType OutputType;
/** Evaluate at the specified input position */
virtual OutputType Evaluate( const InputType& input ) const = 0;
/** Evaluate the derivative at the specified input position */
virtual OutputType EvaluateDerivative( const InputType& input ) const = 0;
protected:
HeavisideStepFunctionBase() {}
virtual ~HeavisideStepFunctionBase() {}
private:
HeavisideStepFunctionBase(const Self& ); //purposely not implemented
void operator=(const Self& ); //purposely not implemented
};
}
#endif
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