itk::StatisticsImageFilter< TInputImage > Class Template Reference

Compute min. max, variance and mean of an Image. More...

#include <itkStatisticsImageFilter.h>

Inheritance diagram for itk::StatisticsImageFilter< TInputImage >:

[legend]Collaboration diagram for itk::StatisticsImageFilter< TInputImage >:

[legend]List of all members.

Public Types
typedef StatisticsImageFilter	Self
typedef ImageToImageFilter< TInputImage, TInputImage >	Superclass
typedef SmartPointer< Self >	Pointer
typedef SmartPointer< const Self >	ConstPointer
typedef TInputImage::Pointer	InputImagePointer
typedef TInputImage::RegionType	RegionType
typedef TInputImage::SizeType	SizeType
typedef TInputImage::IndexType	IndexType
typedef TInputImage::PixelType	PixelType
typedef NumericTraits< PixelType >::RealType	RealType
Public Member Functions
virtual const char *	GetClassName () const
	itkStaticConstMacro (ImageDimension, unsigned int, TInputImage::ImageDimension)
virtual RealType	GetMinimum ()
virtual RealType	GetMaximum ()
virtual RealType	GetMean ()
virtual RealType	GetSigma ()
virtual RealType	GetVariance ()
virtual RealType	GetSum ()
Static Public Member Functions
Pointer	New ()
Protected Member Functions
	StatisticsImageFilter ()
	~StatisticsImageFilter ()
void	PrintSelf (std::ostream &os, Indent indent) const
void	AllocateOutputs ()
void	BeforeThreadedGenerateData ()
void	AfterThreadedGenerateData ()
void	ThreadedGenerateData (const RegionType &outputRegionForThread, int threadId)
void	GenerateInputRequestedRegion ()
void	EnlargeOutputRequestedRegion (DataObject *data)

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Detailed Description

template<class TInputImage>
class itk::StatisticsImageFilter< TInputImage >

Compute min. max, variance and mean of an Image.

StatisticsImageFilter computes the minimum, maximum, sum, mean, variance sigma of an image. The filter needs all of its input image. It behaves as a filter with an input and output. Thus it can be inserted in a pipline with other filters and the statistics will only be recomputed if a downstream filter changes.

The filter passes its input through unmodified. The filter is threaded. It computes statistics in each thread then combines them in its AfterThreadedGenerate method.

Definition at line 42 of file itkStatisticsImageFilter.h.

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Member Typedef Documentation

template<class TInputImage> typedef SmartPointer<const Self> itk::StatisticsImageFilter< TInputImage >::ConstPointer

Reimplemented from itk::ImageToImageFilter< TInputImage, TInputImage >. Definition at line 50 of file itkStatisticsImageFilter.h.

template<class TInputImage> typedef TInputImage::IndexType itk::StatisticsImageFilter< TInputImage >::IndexType

Definition at line 63 of file itkStatisticsImageFilter.h.

template<class TInputImage> typedef TInputImage::Pointer itk::StatisticsImageFilter< TInputImage >::InputImagePointer

Image related typedefs. Reimplemented from itk::ImageToImageFilter< TInputImage, TInputImage >. Definition at line 59 of file itkStatisticsImageFilter.h.

template<class TInputImage> typedef TInputImage::PixelType itk::StatisticsImageFilter< TInputImage >::PixelType

Definition at line 64 of file itkStatisticsImageFilter.h.

template<class TInputImage> typedef SmartPointer<Self> itk::StatisticsImageFilter< TInputImage >::Pointer

Reimplemented from itk::ImageToImageFilter< TInputImage, TInputImage >. Definition at line 49 of file itkStatisticsImageFilter.h.

template<class TInputImage> typedef NumericTraits<PixelType>::RealType itk::StatisticsImageFilter< TInputImage >::RealType

Type to use form computations. Definition at line 71 of file itkStatisticsImageFilter.h.

template<class TInputImage> typedef TInputImage::RegionType itk::StatisticsImageFilter< TInputImage >::RegionType

Definition at line 61 of file itkStatisticsImageFilter.h.

template<class TInputImage> typedef StatisticsImageFilter itk::StatisticsImageFilter< TInputImage >::Self

Standard Self typedef Reimplemented from itk::ImageToImageFilter< TInputImage, TInputImage >. Definition at line 47 of file itkStatisticsImageFilter.h.

template<class TInputImage> typedef TInputImage::SizeType itk::StatisticsImageFilter< TInputImage >::SizeType

Definition at line 62 of file itkStatisticsImageFilter.h.

template<class TInputImage> typedef ImageToImageFilter<TInputImage,TInputImage> itk::StatisticsImageFilter< TInputImage >::Superclass

Reimplemented from itk::ImageToImageFilter< TInputImage, TInputImage >. Definition at line 48 of file itkStatisticsImageFilter.h.

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Constructor & Destructor Documentation

template<class TInputImage> itk::StatisticsImageFilter< TInputImage >::StatisticsImageFilter (   )  [inline, protected]

Definition at line 92 of file itkStatisticsImageFilter.h.

template<class TInputImage> itk::StatisticsImageFilter< TInputImage >::~StatisticsImageFilter (   )  [inline, protected]

Definition at line 102 of file itkStatisticsImageFilter.h.

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Member Function Documentation

template<class TInputImage> void itk::StatisticsImageFilter< TInputImage >::AfterThreadedGenerateData (   )  [protected, virtual]

Do final mean and variance computation from data accumulated in threads. Reimplemented from itk::ImageSource< TInputImage >.

template<class TInputImage> void itk::StatisticsImageFilter< TInputImage >::AllocateOutputs (   )  [protected, virtual]

Pass the input through unmodified. Do this by Grafting in the AllocateOutputs method. Reimplemented from itk::ImageSource< TInputImage >.

template<class TInputImage> void itk::StatisticsImageFilter< TInputImage >::BeforeThreadedGenerateData (   )  [protected, virtual]

Initialize some accumulators before the threads run. Reimplemented from itk::ImageSource< TInputImage >.

template<class TInputImage> void itk::StatisticsImageFilter< TInputImage >::EnlargeOutputRequestedRegion (  DataObject *  data  )  [protected, virtual]

Give the process object a chance to indictate that it will produce more output than it was requested to produce. For example, many imaging filters must compute the entire output at once or can only produce output in complete slices. Such filters cannot handle smaller requested regions. These filters must provide an implementation of this method, setting the output requested region to the size they will produce. By default, a process object does not modify the size of the output requested region. Reimplemented from itk::ProcessObject.

template<class TInputImage> void itk::StatisticsImageFilter< TInputImage >::GenerateInputRequestedRegion (   )  [protected, virtual]

What is the input requested region that is required to produce the output requested region? The base assumption for image processing filters is that the input requested region can be set to match the output requested region. If a filter requires more input (for instance a filter that uses neighborhoods needs more input than output to avoid introducing artificial boundary conditions) or less input (for instance a magnify filter) will have to override this method. In doing so, it should call its superclass' implementation as its first step. Note that imaging filters operate differently than the classes to this point in the class hierachy. Up till now, the base assumption has been that the largest possible region will be requested of the input. This implementation of GenerateInputRequestedRegion() only processes the inputs that are a subclass of the ImageBase<InputImageDimension>. If an input is another type of DataObject (including an Image of a different dimension), they are skipped by this method. The subclasses of ImageToImageFilter are responsible for providing an implementation of GenerateInputRequestedRegion() when there are multiple inputs of different types. See also: ProcessObject::GenerateInputRequestedRegion(), ImageSource::GenerateInputRequestedRegion() Reimplemented from itk::ImageToImageFilter< TInputImage, TInputImage >.

template<class TInputImage> virtual const char* itk::StatisticsImageFilter< TInputImage >::GetClassName (   )  const [virtual]

Runtime information support. Reimplemented from itk::ImageToImageFilter< TInputImage, TInputImage >.

template<class TInputImage> virtual RealType itk::StatisticsImageFilter< TInputImage >::GetMaximum (   )  [virtual]

Return the computed Maximum.

template<class TInputImage> virtual RealType itk::StatisticsImageFilter< TInputImage >::GetMean (   )  [virtual]

Return the computed Mean.

template<class TInputImage> virtual RealType itk::StatisticsImageFilter< TInputImage >::GetMinimum (   )  [virtual]

Return the computed Minimum.

template<class TInputImage> virtual RealType itk::StatisticsImageFilter< TInputImage >::GetSigma (   )  [virtual]

Return the computed Standard Deviation.

template<class TInputImage> virtual RealType itk::StatisticsImageFilter< TInputImage >::GetSum (   )  [virtual]

Return the compute Sum.

template<class TInputImage> virtual RealType itk::StatisticsImageFilter< TInputImage >::GetVariance (   )  [virtual]

Return the computed Variance.

template<class TInputImage> itk::StatisticsImageFilter< TInputImage >::itkStaticConstMacro (  ImageDimension  , unsigned  int, TInputImage::ImageDimension  )

Image related typedefs.

template<class TInputImage> Pointer itk::StatisticsImageFilter< TInputImage >::New (   )  [static]

Method for creation through the object factory. Reimplemented from itk::Object.

template<class TInputImage> void itk::StatisticsImageFilter< TInputImage >::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::ImageToImageFilter< TInputImage, TInputImage >.

template<class TInputImage> void itk::StatisticsImageFilter< TInputImage >::ThreadedGenerateData (  const RegionType &  outputRegionForThread, int  threadId )  [protected]

Multi-thread version GenerateData.

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

• itkStatisticsImageFilter.h

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