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itk::simple::SimilarityIndexImageFilter Class Reference

Measures the similarity between the set of non-zero pixels of two images. More...

#include <sitkSimilarityIndexImageFilter.h>

+ Inheritance diagram for itk::simple::SimilarityIndexImageFilter:
+ Collaboration diagram for itk::simple::SimilarityIndexImageFilter:

Detailed Description

Measures the similarity between the set of non-zero pixels of two images.

SimilarityIndexImageFilter measures the similarity between the set non-zero pixels of two images using the following formula:

\[ S = \frac{2 | A \cap B |}{|A| + |B|} \]

where \(A\) and \(B\) are respectively the set of non-zero pixels in the first and second input images. Operator \(|\cdot|\) represents the size of a set and \(\cap\) represents the intersection of two sets.

The measure is derived from a reliability measure known as the kappa statistic. \(S\) is sensitive to both differences in size and in location and have been in the literature for comparing two segmentation masks. For more information see: "Morphometric Analysis of White Matter Lesions in MR Images: Method and Validation", A. P. Zijdenbos, B. M. Dawant, R. A. Margolin and A. C. Palmer, IEEE Trans. on Medical Imaging, 13(4) pp 716-724,1994

This filter requires the largest possible region of the first image and the same corresponding region in the second image. It behaves as filter with two input and one output. Thus it can be inserted in a pipeline with other filters. The filter passes the first input through unmodified.

This filter is templated over the two input image type. It assume both image have the same number of dimensions.

See also
itk::SimilarityIndexImageFilter for the Doxygen on the original ITK class.

Definition at line 48 of file sitkSimilarityIndexImageFilter.h.

Public Types

using PixelIDTypeList = BasicPixelIDTypeList
 
using Self = SimilarityIndexImageFilter
 
- Public Types inherited from itk::simple::ImageFilter
using Self = ImageFilter
 
- Public Types inherited from itk::simple::ProcessObject
using Self = ProcessObject
 

Public Member Functions

void Execute (const Image &image1, const Image &image2)
 
std::string GetName () const
 
double GetSimilarityIndex () const
 
 SimilarityIndexImageFilter ()
 
std::string ToString () const
 
virtual ~SimilarityIndexImageFilter ()
 
- Public Member Functions inherited from itk::simple::ImageFilter
 ImageFilter ()
 
virtual ~ImageFilter ()=0
 
- Public Member Functions inherited from itk::simple::ProcessObject
virtual void Abort ()
 
virtual int AddCommand (itk::simple::EventEnum event, const std::function< void()> &func)
 Directly add a callback to observe an event. More...
 
virtual int AddCommand (itk::simple::EventEnum event, itk::simple::Command &cmd)
 Add a Command Object to observer the event. More...
 
virtual float GetProgress () const
 An Active Measurement of the progress of execution. More...
 
virtual bool HasCommand (itk::simple::EventEnum event) const
 Query of this object has any registered commands for event. More...
 
 ProcessObject ()
 
virtual void RemoveAllCommands ()
 Remove all registered commands. More...
 
virtual ~ProcessObject ()
 
virtual void DebugOn ()
 
virtual void DebugOff ()
 
virtual bool GetDebug () const
 
virtual void SetDebug (bool debugFlag)
 
virtual void SetNumberOfThreads (unsigned int n)
 
virtual unsigned int GetNumberOfThreads () const
 
virtual void SetNumberOfWorkUnits (unsigned int n)
 
virtual unsigned int GetNumberOfWorkUnits () const
 

Private Types

using MemberFunctionType = void(Self::*)(const Image &image1, const Image &image2)
 

Private Member Functions

template<class TImageType >
void ExecuteInternal (const Image &image1, const Image &image2)
 

Private Attributes

std::unique_ptr< detail::MemberFunctionFactory< MemberFunctionType > > m_MemberFactory
 
double m_SimilarityIndex {0.0}
 

Friends

struct detail::MemberFunctionAddressor< MemberFunctionType >
 

Additional Inherited Members

- Static Public Member Functions inherited from itk::simple::ProcessObject
static bool GetGlobalDefaultDebug ()
 
static void GlobalDefaultDebugOff ()
 
static void GlobalDefaultDebugOn ()
 
static void SetGlobalDefaultDebug (bool debugFlag)
 
static void GlobalWarningDisplayOn ()
 
static void GlobalWarningDisplayOff ()
 
static void SetGlobalWarningDisplay (bool flag)
 
static bool GetGlobalWarningDisplay ()
 
static double GetGlobalDefaultCoordinateTolerance ()
 Access the global tolerance to determine congruent spaces. More...
 
static void SetGlobalDefaultCoordinateTolerance (double)
 Access the global tolerance to determine congruent spaces. More...
 
static double GetGlobalDefaultDirectionTolerance ()
 Access the global tolerance to determine congruent spaces. More...
 
static void SetGlobalDefaultDirectionTolerance (double)
 Access the global tolerance to determine congruent spaces. More...
 
static bool SetGlobalDefaultThreader (const std::string &threader)
 Set/Get the default threader used for process objects. More...
 
static std::string GetGlobalDefaultThreader ()
 Set/Get the default threader used for process objects. More...
 
static void SetGlobalDefaultNumberOfThreads (unsigned int n)
 
static unsigned int GetGlobalDefaultNumberOfThreads ()
 Set/Get the default threader used for process objects. More...
 
- Protected Member Functions inherited from itk::simple::ImageFilter
void CheckImageMatchingDimension (const Image &image1, const Image &image2, const std::string &image2Name)
 
void CheckImageMatchingPixelType (const Image &image1, const Image &image2, const std::string &image2Name)
 
void CheckImageMatchingSize (const Image &image1, const Image &image2, const std::string &image2Name)
 
- Protected Member Functions inherited from itk::simple::ProcessObject
virtual unsigned long AddITKObserver (const itk::EventObject &, itk::Command *)
 
virtual itk::ProcessObjectGetActiveProcess ()
 
virtual void OnActiveProcessDelete ()
 
virtual void onCommandDelete (const itk::simple::Command *cmd) noexcept
 
virtual void PreUpdate (itk::ProcessObject *p)
 
virtual void RemoveITKObserver (EventCommand &e)
 
- Protected Member Functions inherited from itk::simple::NonCopyable
 NonCopyable ()=default
 
 NonCopyable (const NonCopyable &)=delete
 
NonCopyableoperator= (const NonCopyable &)=delete
 
- Static Protected Member Functions inherited from itk::simple::ImageFilter
template<class TImageType >
static void FixNonZeroIndex (TImageType *img)
 
- Static Protected Member Functions inherited from itk::simple::ProcessObject
template<class TImageType >
static TImageType::ConstPointer CastImageToITK (const Image &img)
 
template<class TPixelType , unsigned int VImageDimension, unsigned int VLength, template< typename, unsigned int > class TVector>
static Image CastITKToImage (itk::Image< TVector< TPixelType, VLength >, VImageDimension > *img)
 
template<unsigned int VImageDimension, unsigned int VLength, template< unsigned int > class TVector>
static Image CastITKToImage (itk::Image< TVector< VLength >, VImageDimension > *img)
 
template<class TImageType >
static Image CastITKToImage (TImageType *img)
 
static const itk::EventObjectGetITKEventObject (EventEnum e)
 
template<typename T >
static std::ostream & ToStringHelper (std::ostream &os, const T &v)
 
static std::ostream & ToStringHelper (std::ostream &os, const char &v)
 
static std::ostream & ToStringHelper (std::ostream &os, const signed char &v)
 
static std::ostream & ToStringHelper (std::ostream &os, const unsigned char &v)
 

Member Typedef Documentation

◆ MemberFunctionType

using itk::simple::SimilarityIndexImageFilter::MemberFunctionType = void (Self::*)( const Image& image1, const Image& image2 )
private

Setup for member function dispatching

Definition at line 86 of file sitkSimilarityIndexImageFilter.h.

◆ PixelIDTypeList

Define the pixels types supported by this filter

Definition at line 60 of file sitkSimilarityIndexImageFilter.h.

◆ Self

Definition at line 50 of file sitkSimilarityIndexImageFilter.h.

Constructor & Destructor Documentation

◆ ~SimilarityIndexImageFilter()

virtual itk::simple::SimilarityIndexImageFilter::~SimilarityIndexImageFilter ( )
virtual

Destructor

◆ SimilarityIndexImageFilter()

itk::simple::SimilarityIndexImageFilter::SimilarityIndexImageFilter ( )

Default Constructor that takes no arguments and initializes default parameters

Member Function Documentation

◆ Execute()

void itk::simple::SimilarityIndexImageFilter::Execute ( const Image image1,
const Image image2 
)

Execute the filter on the input images

◆ ExecuteInternal()

template<class TImageType >
void itk::simple::SimilarityIndexImageFilter::ExecuteInternal ( const Image image1,
const Image image2 
)
private

◆ GetName()

std::string itk::simple::SimilarityIndexImageFilter::GetName ( ) const
inlinevirtual

Name of this class

Implements itk::simple::ProcessObject.

Definition at line 72 of file sitkSimilarityIndexImageFilter.h.

◆ GetSimilarityIndex()

double itk::simple::SimilarityIndexImageFilter::GetSimilarityIndex ( ) const
inline

Return the computed similarity index.

This is a measurement. Its value is updated in the Execute methods, so the value will only be valid after an execution.

Definition at line 68 of file sitkSimilarityIndexImageFilter.h.

◆ ToString()

std::string itk::simple::SimilarityIndexImageFilter::ToString ( ) const
virtual

Print ourselves out

Reimplemented from itk::simple::ProcessObject.

Friends And Related Function Documentation

◆ detail::MemberFunctionAddressor< MemberFunctionType >

Definition at line 90 of file sitkSimilarityIndexImageFilter.h.

Member Data Documentation

◆ m_MemberFactory

std::unique_ptr<detail::MemberFunctionFactory<MemberFunctionType> > itk::simple::SimilarityIndexImageFilter::m_MemberFactory
private

Definition at line 92 of file sitkSimilarityIndexImageFilter.h.

◆ m_SimilarityIndex

double itk::simple::SimilarityIndexImageFilter::m_SimilarityIndex {0.0}
private

Definition at line 96 of file sitkSimilarityIndexImageFilter.h.


The documentation for this class was generated from the following file: