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itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator

itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram > Class Template Reference

#include <itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h>

Inheritance diagram for itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >:

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Collaboration diagram for itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >:

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List of all members.

Detailed Description

template<class THistogram>
class itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >

This class computes texture feature coefficients from a grey level co-occurrence matrix.

This class computes features that summarize image texture, given a grey level co-occurrence matrix (generated by a ScalarImageToGreyLevelCooccurrenceMatrixGenerator or related class).

The features calculated are as follows (where $ g(i, j) $ is the element in cell i, j of a a normalized GLCM):

"Energy" $ = f_1 = \sum_{i,j}g(i, j)^2 $

"Entropy" $ = f_2 = -\sum_{i,j}g(i, j) \log_2 g(i, j)$ , or 0 if $g(i, j) = 0$

"Correlation" $ = f_3 = \sum_{i,j}\frac{(i - \mu)(j - \mu)g(i, j)}{\sigma^2} $

"Difference Moment" $= f_4 = \sum_{i,j}\frac{1}{1 + (i - j)^2}g(i, j) $

"Inertia" $ = f_5 = \sum_{i,j}(i - j)^2g(i, j) $ (sometimes called "contrast.")

"Cluster Shade" $ = f_6 = \sum_{i,j}((i - \mu) + (j - \mu))^3 g(i, j) $

"Cluster Prominence" $ = f_7 = \sum_{i,j}((i - \mu) + (j - \mu))^4 g(i, j) $

"Haralick's Correlation" $ = f_8 = \frac{\sum_{i,j}(i, j) g(i, j) -\mu_t^2}{\sigma_t^2} $ where $\mu_t$ and $\sigma_t$ are the mean and standard deviation of the row (or column, due to symmetry) sums.

Above, $ \mu = $ (weighted pixel average) $ = \sum_{i,j}i \cdot g(i, j) = \sum_{i,j}j \cdot g(i, j) $ (due to matrix summetry), and

$ \sigma = $ (weighted pixel variance) $ = \sum_{i,j}(i - \mu)^2 \cdot g(i, j) = \sum_{i,j}(j - \mu)^2 \cdot g(i, j) $ (due to matrix summetry)

A good texture feature set to use is the Conners, Trivedi and Harlow set: features 1, 2, 4, 5, 6, and 7. There is some correlation between the various features, so using all of them at the same time is not necessarialy a good idea.

NOTA BENE: The input histogram will be forcably normalized! This algorithm takes three passes through the input histogram if the histogram was already normalized, and four if not.

Web references:

http://www.cssip.uq.edu.au/meastex/www/algs/algs/algs.html http://www.ucalgary.ca/~mhallbey/texture/texture_tutorial.html

Print references:

Haralick, R.M., K. Shanmugam and I. Dinstein. 1973. Textural Features for Image Classification. IEEE Transactions on Systems, Man and Cybernetics. SMC-3(6):610-620.

Haralick, R.M. 1979. Statistical and Structural Approaches to Texture. Proceedings of the IEEE, 67:786-804.

R.W. Conners and C.A. Harlow. A Theoretical Comaprison of Texture Algorithms. IEEE Transactions on Pattern Analysis and Machine Intelligence, 2:204-222, 1980.

R.W. Conners, M.M. Trivedi, and C.A. Harlow. Segmentation of a High-Resolution Urban Scene using Texture Operators. Computer Vision, Graphics and Image Processing, 25:273-310, 1984.

See also:
ScalarImageToGreyLevelCooccurrenceMatrixGenerator

MaskedScalarImageToGreyLevelCooccurrenceMatrixGenerator

ScalarImageTextureCalculator

Author: Zachary Pincus

Definition at line 103 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

Public Types

typedef SmartPointer< const
Self > 		ConstPointer
typedef HistogramType::FrequencyType FrequencyType
typedef HistogramType::ConstPointer HistogramConstPointer
typedef HistogramType::Pointer HistogramPointer
typedef THistogram HistogramType
typedef HistogramType::IndexType IndexType
typedef HistogramType::MeasurementType MeasurementType
typedef HistogramType::MeasurementVectorType MeasurementVectorType
typedef SmartPointer< Self > Pointer
typedef GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator Self
typedef Object Superclass

Public Member Functions

void Compute (void)
virtual LightObject::Pointer CreateAnother () const
virtual void DebugOff () const
virtual void DebugOn () const
virtual void Delete ()
virtual double GetClusterProminence ()
virtual double GetClusterShade ()
Command * GetCommand (unsigned long tag)
virtual double GetCorrelation ()
bool GetDebug () const
virtual double GetEnergy ()
virtual double GetEntropy ()
double GetFeature (TextureFeatureName feature)
virtual double GetHaralickCorrelation ()
virtual HistogramType * GetHistogram ()
virtual double GetInertia ()
virtual double GetInverseDifferenceMoment ()
const MetaDataDictionary & GetMetaDataDictionary (void) const
MetaDataDictionary & GetMetaDataDictionary (void)
virtual unsigned long GetMTime () const
virtual const char * GetNameOfClass () const
virtual int GetReferenceCount () const
bool HasObserver (const EventObject &event) const
void InvokeEvent (const EventObject &) const
void InvokeEvent (const EventObject &)
virtual void Modified () const
void Print (std::ostream &os, Indent indent=0) const
virtual void Register () const
void RemoveAllObservers ()
void RemoveObserver (unsigned long tag)
void SetDebug (bool debugFlag) const
Connects the GLCM histogram
over which the features are
going to be computed *virtual
void 		SetHistogram (HistogramType *_arg)
void SetMetaDataDictionary (const MetaDataDictionary &rhs)
virtual void SetReferenceCount (int)
virtual void UnRegister () const

Static Public Member Functions

static void BreakOnError ()
static bool GetGlobalWarningDisplay ()
static void GlobalWarningDisplayOff ()
static void GlobalWarningDisplayOn ()
static Pointer New ()
This is a global flag that
controls whether any warning
*or error messages are displayed
*static void 		SetGlobalWarningDisplay (bool flag)

Public Attributes

Allow people to add remove
invoke observers(callbacks)
to any ITK *object.This is
an implementation of the subject/observer design *pattern.An
observer is added by specifying
an event to respond to *and
an itk unsigned lon 		AddObserver )(const EventObject &event, Command *) const
This is a global flag that
controls whether any 		debug

Protected Member Functions

 GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator ()
bool PrintObservers (std::ostream &os, Indent indent) const
void PrintSelf (std::ostream &os, Indent indent) const
virtual void PrintTrailer (std::ostream &os, Indent indent) const
virtual ~GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator ()

Protected Attributes

int m_ReferenceCount
SimpleFastMutexLock m_ReferenceCountLock
Methods invoked by virtual
Print() to print information
about the object *including
superclasses.Typically not
called by the user(use Print()*instead) but used in the
hierarchical print process
to combine the *output of
several classes.*/virtual
void PrintSelf(std voi 		PrintHeader )(std::ostream &os, Indent indent) const

Member Typedef Documentation

template<class THistogram>
typedef SmartPointer<const Self> itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::ConstPointer
 

Reimplemented from itk::Object.

Definition at line 110 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

template<class THistogram>
typedef HistogramType::FrequencyType itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::FrequencyType
 

Definition at line 124 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

template<class THistogram>
typedef HistogramType::ConstPointer itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::HistogramConstPointer
 

Definition at line 120 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

template<class THistogram>
typedef HistogramType::Pointer itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::HistogramPointer
 

Definition at line 119 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

template<class THistogram>
typedef THistogram itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::HistogramType
 

Definition at line 116 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

template<class THistogram>
typedef HistogramType::IndexType itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::IndexType
 

Definition at line 123 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

template<class THistogram>
typedef HistogramType::MeasurementType itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::MeasurementType
 

Definition at line 121 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

template<class THistogram>
typedef HistogramType::MeasurementVectorType itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::MeasurementVectorType
 

Definition at line 122 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

template<class THistogram>
typedef SmartPointer<Self> itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::Pointer
 

Reimplemented from itk::Object.

Definition at line 109 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

template<class THistogram>
typedef GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::Self
 

Standard typedefs

Reimplemented from itk::Object.

Definition at line 107 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

template<class THistogram>
typedef Object itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::Superclass
 

Reimplemented from itk::Object.

Definition at line 108 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

Constructor & Destructor Documentation

template<class THistogram>
itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator (   )  [inline, protected]
 

Definition at line 149 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

template<class THistogram>
virtual itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::~GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator (   )  [inline, protected, virtual]
 

Definition at line 150 of file itkGreyLevelCooccurrenceMatrixTextureCoefficientsCalculator.h.

Member Function Documentation

static void itk::LightObject::BreakOnError (   )  [static, inherited]
 

This method is called when itkExceptionMacro executes. It allows the debugger to break on error.

template<class THistogram>
void itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::Compute (  void   ) 
 

Triggers the Computation of the histogram

virtual LightObject::Pointer itk::Object::CreateAnother (   )  const [virtual, inherited]
 

Create an object from an instance, potentially deferring to a factory. This method allows you to create an instance of an object that is exactly the same type as the referring object. This is useful in cases where an object has been cast back to a base class.

Reimplemented from itk::LightObject.

virtual void itk::Object::DebugOff (   )  const [virtual, inherited]
 

Turn debugging output off.

virtual void itk::Object::DebugOn (   )  const [virtual, inherited]
 

Turn debugging output on.

virtual void itk::LightObject::Delete (   )  [virtual, inherited]
 

Delete an itk object. This method should always be used to delete an object when the new operator was used to create it. Using the C delete method will not work with reference counting.

template<class THistogram>
virtual double itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::GetClusterProminence (   )  [virtual]
 

template<class THistogram>
virtual double itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::GetClusterShade (   )  [virtual]
 

Command* itk::Object::GetCommand (  unsigned long  tag  )  [inherited]
 

Get the command associated with the given tag. NOTE: This returns a pointer to a Command, but it is safe to asign this to a Command::Pointer. Since Command inherits from LightObject, at this point in the code, only a pointer or a reference to the Command can be used.

template<class THistogram>
virtual double itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::GetCorrelation (   )  [virtual]
 

bool itk::Object::GetDebug (   )  const [inherited]
 

Get the value of the debug flag.

template<class THistogram>
virtual double itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::GetEnergy (   )  [virtual]
 

template<class THistogram>
virtual double itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::GetEntropy (   )  [virtual]
 

template<class THistogram>
double itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::GetFeature (  TextureFeatureName  feature  ) 
 

Methods to return the feature values.

Warning:
These outputs are only valid after the Compute() method has been invoked
See also:
Compute

static bool itk::Object::GetGlobalWarningDisplay (   )  [static, inherited]
 

template<class THistogram>
virtual double itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::GetHaralickCorrelation (   )  [virtual]
 

template<class THistogram>
virtual HistogramType* itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::GetHistogram (   )  [virtual]
 

template<class THistogram>
virtual double itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::GetInertia (   )  [virtual]
 

template<class THistogram>
virtual double itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::GetInverseDifferenceMoment (   )  [virtual]
 

const MetaDataDictionary& itk::Object::GetMetaDataDictionary (  void   )  const [inherited]
 

Returns:
A constant reference to this objects MetaDataDictionary.

MetaDataDictionary& itk::Object::GetMetaDataDictionary (  void   )  [inherited]
 

Returns:
A reference to this objects MetaDataDictionary.
Warning:
This reference may be changed.

virtual unsigned long itk::Object::GetMTime (   )  const [virtual, inherited]
 

Return this objects modified time.

Reimplemented in itk::ImageRegistrationMethod< TFixedImage, TMovingImage >, itk::DeformationFieldSource< TOutputImage >, itk::InverseDeformationFieldImageFilter< TInputImage, TOutputImage >, itk::ResampleImageFilter< TInputImage, TOutputImage, TInterpolatorPrecisionType >, itk::VectorResampleImageFilter< TInputImage, TOutputImage, TInterpolatorPrecisionType >, itk::BoundingBox< TPointIdentifier, VPointDimension, TCoordRep, TPointsContainer >, itk::SceneSpatialObject< SpaceDimension >, and itk::SceneSpatialObject< NDimensions >.

template<class THistogram>
virtual const char* itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::GetNameOfClass (   )  const [virtual]
 

Run-time type information (and related methods).

Reimplemented from itk::Object.

virtual int itk::LightObject::GetReferenceCount (   )  const [inline, virtual, inherited]
 

Gets the reference count on this object.

Definition at line 98 of file itkLightObject.h.

static void itk::Object::GlobalWarningDisplayOff (   )  [inline, static, inherited]
 

Definition at line 100 of file itkObject.h.

References itk::Object::SetGlobalWarningDisplay().

static void itk::Object::GlobalWarningDisplayOn (   )  [inline, static, inherited]
 

Definition at line 98 of file itkObject.h.

References itk::Object::SetGlobalWarningDisplay().

bool itk::Object::HasObserver (  const EventObject &  event  )  const [inherited]
 

Return true if an observer is registered for this event.

void itk::Object::InvokeEvent (  const EventObject &   )  const [inherited]
 

Call Execute on all the Commands observing this event id. The actions triggered by this call doesn't modify this object.

void itk::Object::InvokeEvent (  const EventObject &   )  [inherited]
 

Call Execute on all the Commands observing this event id.

virtual void itk::Object::Modified (   )  const [virtual, inherited]
 

Update the modification time for this object. Many filters rely on the modification time to determine if they need to recompute their data.

Referenced by itk::MatrixOffsetTransformBase< TScalarType, 3, 3 >::SetCenter(), itk::HistogramAlgorithmBase< TInputHistogram >::SetInputHistogram(), itk::MatrixOffsetTransformBase< TScalarType, 3, 3 >::SetMatrix(), itk::MatrixOffsetTransformBase< TScalarType, 3, 3 >::SetOffset(), itk::ThresholdLabelerImageFilter< TInputImage, TOutputImage >::SetRealThresholds(), itk::CollidingFrontsImageFilter< TInputImage, TOutputImage >::SetSeedPoints1(), itk::CollidingFrontsImageFilter< TInputImage, TOutputImage >::SetSeedPoints2(), itk::NonUniformBSpline< TDimension >::SetSplineOrder(), itk::ThresholdLabelerImageFilter< TInputImage, TOutputImage >::SetThresholds(), itk::Statistics::GoodnessOfFitFunctionBase< typename ComponentType::HistogramType >::SetTotalObservedScale(), and itk::MatrixOffsetTransformBase< TScalarType, 3, 3 >::SetTranslation().

template<class THistogram>
static Pointer itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::New (   )  [static]
 

standard New() method support

Reimplemented from itk::Object.

void itk::LightObject::Print (  std::ostream &  os,
Indent  indent = 0
)  const [inherited]
 

Cause the object to print itself out.

bool itk::Object::PrintObservers (  std::ostream &  os,
Indent  indent
)  const [protected, inherited]
 

template<class THistogram>
void itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::PrintSelf (  std::ostream &  os,
Indent  indent
)  const [protected, virtual]
 

Methods invoked by Print() to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from itk::Object.

virtual void itk::LightObject::PrintTrailer (  std::ostream &  os,
Indent  indent
)  const [protected, virtual, inherited]
 

virtual void itk::Object::Register (   )  const [virtual, inherited]
 

Increase the reference count (mark as used by another object).

Reimplemented from itk::LightObject.

void itk::Object::RemoveAllObservers (   )  [inherited]
 

Remove all observers .

void itk::Object::RemoveObserver (  unsigned long  tag  )  [inherited]
 

Remove the observer with this tag value.

void itk::Object::SetDebug (  bool  debugFlag  )  const [inherited]
 

Set the value of the debug flag. A non-zero value turns debugging on.

This is a global flag that controls whether any warning* or error messages are displayed* static void itk::Object::SetGlobalWarningDisplay (  bool  flag  )  [static, inherited]
 

Referenced by itk::Object::GlobalWarningDisplayOff(), and itk::Object::GlobalWarningDisplayOn().

template<class THistogram>
Connects the GLCM histogram over which the features are going to be computed* virtual void itk::Statistics::GreyLevelCooccurrenceMatrixTextureCoefficientsCalculator< THistogram >::SetHistogram (  HistogramType *  _arg  )  [virtual]
 

void itk::Object::SetMetaDataDictionary (  const MetaDataDictionary &  rhs  )  [inherited]
 

Returns:
Set the MetaDataDictionary

virtual void itk::Object::SetReferenceCount (  int   )  [virtual, inherited]
 

Sets the reference count (use with care)

Reimplemented from itk::LightObject.

virtual void itk::Object::UnRegister (   )  const [virtual, inherited]
 

Decrease the reference count (release by another object).

Reimplemented from itk::LightObject.

Member Data Documentation

Allow people to add remove invoke observers (callbacks) to any ITK * object. This is an implementation of the subject/observer design * pattern. An observer is added by specifying an event to respond to * and an itk unsigned lon itk::Object::AddObserver)(const EventObject &event, Command *) const [inherited]
 

This is a global flag that controls whether any itk::Object::debug [inherited]
 

Definition at line 94 of file itkObject.h.

int itk::LightObject::m_ReferenceCount [mutable, protected, inherited]
 

Number of uses of this object by other objects.

Definition at line 119 of file itkLightObject.h.

SimpleFastMutexLock itk::LightObject::m_ReferenceCountLock [mutable, protected, inherited]
 

Mutex lock to protect modification to the reference count

Definition at line 122 of file itkLightObject.h.

Methods invoked by virtual Print () to print information about the object * including superclasses. Typically not called by the user (use Print() * instead) but used in the hierarchical print process to combine the * output of several classes. */ virtual void PrintSelf(std voi itk::LightObject::PrintHeader)(std::ostream &os, Indent indent) const [protected, inherited]
 

The documentation for this class was generated from the following file:
Generated at Mon Jul 10 00:24:00 2006 for ITK by doxygen 1.4.2 written by Dimitri van Heesch, © 1997-2000