| 1 |
|
/*========================================================================= |
| 2 |
|
|
| 3 |
|
Program: Insight Segmentation & Registration Toolkit |
| 4 |
|
Module: $RCSfile: itkLogImageAdaptor.h.html,v $ |
| 5 |
|
Language: C++ |
| 6 |
|
Date: $Date: 2006/01/17 19:15:41 $ |
| 7 |
|
Version: $Revision: 1.4 $ |
| 8 |
|
|
| 9 |
|
Copyright (c) Insight Software Consortium. All rights reserved. |
| 10 |
|
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details. |
| 11 |
|
|
| 12 |
|
This software is distributed WITHOUT ANY WARRANTY; without even |
| 13 |
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
| 14 |
|
PURPOSE. See the above copyright notices for more information. |
| 15 |
|
|
| 16 |
|
=========================================================================*/ |
| 17 |
|
#ifndef __itkLogImageAdaptor_h |
| 18 |
|
#define __itkLogImageAdaptor_h |
| 19 |
|
|
| 20 |
|
#include <itkImageAdaptor.h> |
| 21 |
|
#include "vnl/vnl_math.h" |
| 22 |
|
|
| 23 |
|
namespace itk |
| 24 |
|
{ |
| 25 |
|
|
| 26 |
|
namespace Accessor { |
| 27 |
|
/** \class LogPixelAccessor |
| 28 |
|
* \brief Give access to the log() function of a value |
| 29 |
|
* |
| 30 |
|
* LogPixelAccessor is templated over an internal type and an |
| 31 |
|
* external type representation. This class cast the input |
| 32 |
|
* applies the funtion to it and cast the result according |
| 33 |
|
* to the types defined as template parameters |
| 34 |
|
* |
| 35 |
|
* \ingroup ImageAdaptors |
| 36 |
|
*/ |
| 37 |
|
|
| 38 |
|
template <class TInternalType, class TExternalType > |
| 39 |
|
class ITK_EXPORT LogPixelAccessor |
| 40 |
|
{ |
| 41 |
|
public: |
| 42 |
IND |
*/** External typedef. It defines the external aspect |
| 43 |
|
* that this class will exhibit. */ |
| 44 |
|
typedef TExternalType ExternalType; |
| 45 |
|
|
| 46 |
|
/** Internal typedef. It defines the internal real |
| 47 |
|
* representation of data. */ |
| 48 |
|
typedef TInternalType InternalType; |
| 49 |
|
|
| 50 |
|
static inline void Set(TInternalType & output, const TExternalType & input) |
| 51 |
|
{output = (TInternalType)log((double)input);} |
| 52 |
|
|
| 53 |
|
static inline TExternalType Get( const TInternalType & input ) |
| 54 |
|
{return (TExternalType)log((double)input);} |
| 55 |
|
|
| 56 |
|
}; |
| 57 |
|
|
| 58 |
|
|
| 59 |
|
} // end namespace Accessor |
| 60 |
|
|
| 61 |
|
/** \class LogImageAdaptor |
| 62 |
|
* \brief Presents an image as being composed of the log() of its pixels |
| 63 |
|
* |
| 64 |
|
* Additional casting is performed according to the input and output image |
| 65 |
|
* types following C++ default casting rules. |
| 66 |
|
* |
| 67 |
|
* \ingroup ImageAdaptors |
| 68 |
|
*/ |
| 69 |
|
template <class TImage, class TOutputPixelType> |
| 70 |
|
class ITK_EXPORT LogImageAdaptor : public |
| 71 |
IND |
******ImageAdaptor<TImage, |
| 72 |
|
Accessor::LogPixelAccessor< |
| 73 |
|
typename TImage::PixelType, |
| 74 |
|
TOutputPixelType> > |
| 75 |
|
{ |
| 76 |
|
public: |
| 77 |
|
/** Standard class typedefs. */ |
| 78 |
|
typedef LogImageAdaptor Self; |
| 79 |
|
typedef ImageAdaptor<TImage, |
| 80 |
|
Accessor::LogPixelAccessor< |
| 81 |
|
typename TImage::PixelType, |
| 82 |
TDA |
TOutputPixelType> > Superclass; |
| 83 |
TDA |
typedef SmartPointer<Self> Pointer; |
| 84 |
TDA |
typedef SmartPointer<const Self> ConstPointer; |
| 85 |
|
|
| 86 |
|
/** Run-time type information (and related methods). */ |
| 87 |
|
itkTypeMacro( LogImageAdaptor, ImageAdaptor ); |
| 88 |
|
|
| 89 |
|
/** Method for creation through the object factory. */ |
| 90 |
|
itkNewMacro(Self); |
| 91 |
|
|
| 92 |
|
protected: |
| 93 |
|
LogImageAdaptor() {} |
| 94 |
|
virtual ~LogImageAdaptor() {} |
| 95 |
|
|
| 96 |
|
private: |
| 97 |
|
LogImageAdaptor(const Self&); //purposely not implemented |
| 98 |
|
void operator=(const Self&); //purposely not implemented |
| 99 |
|
}; |
| 100 |
|
|
| 101 |
|
} // end namespace itk |
| 102 |
|
|
| 103 |
|
#endif |
| 104 |
|
|
