vtkImageVariance3D Class Reference

Variance in a neighborhood. More...

#include <vtkImageVariance3D.h>

Inheritance diagram for vtkImageVariance3D:

Collaboration diagram for vtkImageVariance3D:

List of all members.

Public Types
typedef vtkImageSpatialAlgorithm	Superclass
Public Member Functions
virtual int	IsA (const char *type)
vtkImageVariance3D *	NewInstance () const
void	PrintSelf (ostream &os, vtkIndent indent)
void	SetKernelSize (int size0, int size1, int size2)
Static Public Member Functions
static vtkImageVariance3D *	New ()
static int	IsTypeOf (const char *type)
static vtkImageVariance3D *	SafeDownCast (vtkObjectBase *o)
Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkImageVariance3D ()
	~vtkImageVariance3D ()
virtual int	RequestInformation (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
void	ThreadedRequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector, vtkImageData ***inData, vtkImageData **outData, int extent[6], int id)
virtual int	RequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
Protected Attributes
vtkImageEllipsoidSource *	Ellipse

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Detailed Description

Variance in a neighborhood.

vtkImageVariance3D replaces each pixel with a measurement of pixel variance in a elliptical neighborhood centered on that pixel. The value computed is not exactly the variance. The difference between the neighbor values and center value is computed and squared for each neighbor. These values are summed and divided by the total number of neighbors to produce the output value.

Tests:

vtkImageVariance3D (Tests)

Definition at line 38 of file vtkImageVariance3D.h.

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Member Typedef Documentation

typedef vtkImageSpatialAlgorithm vtkImageVariance3D::Superclass

Reimplemented from vtkImageSpatialAlgorithm.

Definition at line 42 of file vtkImageVariance3D.h.

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Constructor & Destructor Documentation

vtkImageVariance3D::vtkImageVariance3D

(

)

[protected]

vtkImageVariance3D::~vtkImageVariance3D

(

)

[protected]

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Member Function Documentation

static vtkImageVariance3D* vtkImageVariance3D::New

(

)

[static]

Create an object with Debug turned off, modified time initialized to zero, and reference counting on.

Reimplemented from vtkImageSpatialAlgorithm.

static int vtkImageVariance3D::IsTypeOf

(

const char *

name

)

[static]

Return 1 if this class type is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkImageSpatialAlgorithm.

virtual int vtkImageVariance3D::IsA

(

const char *

name

)

[virtual]

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkImageSpatialAlgorithm.

static vtkImageVariance3D* vtkImageVariance3D::SafeDownCast

(

vtkObjectBase *

o

)

[static]

Reimplemented from vtkImageSpatialAlgorithm.

virtual vtkObjectBase* vtkImageVariance3D::NewInstanceInternal

(

)

const [protected, virtual]

Reimplemented from vtkImageSpatialAlgorithm.

vtkImageVariance3D* vtkImageVariance3D::NewInstance

(

)

const

Reimplemented from vtkImageSpatialAlgorithm.

void vtkImageVariance3D::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)		[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 vtkImageSpatialAlgorithm.

void vtkImageVariance3D::SetKernelSize	(	int	size0,
		int	size1,
		int	size2
	)

This method sets the size of the neighborhood. It also sets the default middle of the neighborhood and computes the Elliptical foot print.

virtual int vtkImageVariance3D::RequestInformation	(	vtkInformation *	request,
		vtkInformationVector **	inputVector,
		vtkInformationVector *	outputVector
	)		[protected, virtual]

Subclasses can reimplement this method to collect information from their inputs and set information for their outputs.

Reimplemented from vtkImageSpatialAlgorithm.

void vtkImageVariance3D::ThreadedRequestData	(	vtkInformation *	request,
		vtkInformationVector **	inputVector,
		vtkInformationVector *	outputVector,
		vtkImageData ***	inData,
		vtkImageData **	outData,
		int	extent[6],
		int	threadId
	)		[protected, virtual]

If the subclass does not define an Execute method, then the task will be broken up, multiple threads will be spawned, and each thread will call this method. It is public so that the thread functions can call this method.

Reimplemented from vtkThreadedImageAlgorithm.

virtual int vtkImageVariance3D::RequestData	(	vtkInformation *	request,
		vtkInformationVector **	inputVector,
		vtkInformationVector *	outputVector
	)		[protected, virtual]

This is called by the superclass. This is the method you should override.

Reimplemented from vtkThreadedImageAlgorithm.

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Member Data Documentation

vtkImageEllipsoidSource* vtkImageVariance3D::Ellipse [protected]

Definition at line 54 of file vtkImageVariance3D.h.

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

• dox/Imaging/General/vtkImageVariance3D.h