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vtkImageVariance3D Class Reference

Variance in a neighborhood. More...

#include <vtkImageVariance3D.h>

Inheritance diagram for vtkImageVariance3D:

[legend]Collaboration diagram for vtkImageVariance3D:

[legend]List of all members.

Public Methods
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
void	SetKernelSize (int size0, int size1, int size2)
Static Public Methods
vtkImageVariance3D *	New ()
int	IsTypeOf (const char *type)
vtkImageVariance3D *	SafeDownCast (vtkObject *o)
Protected Methods
	vtkImageVariance3D ()
	~vtkImageVariance3D ()
	vtkImageVariance3D (const vtkImageVariance3D &)
void	operator= (const vtkImageVariance3D &)
void	ExecuteInformation (vtkImageData *inData, vtkImageData *outData)
void	ExecuteInformation ()
void	ThreadedExecute (vtkImageData *inData, vtkImageData *outData, int extent[6], int id)
Protected Attributes
vtkImageEllipsoidSource *	Ellipse

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Detailed Description

Variance in a neighborhood.

Date:

2000/12/10 20:09:11

Revision:

1.17

Thanks:

Thanks to C. Charles Law who developed this class.

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.

Examples:

vtkImageVariance3D (examples)

Definition at line 66 of file vtkImageVariance3D.h.

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Constructor & Destructor Documentation

vtkImageVariance3D::vtkImageVariance3D (    )  [protected]

vtkImageVariance3D::~vtkImageVariance3D (    )  [protected]

vtkImageVariance3D::vtkImageVariance3D (  const vtkImageVariance3D &    )  [inline, protected]

Definition at line 81 of file vtkImageVariance3D.h.

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Member Function Documentation

vtkImageVariance3D* vtkImageVariance3D::New (    )  [static]

Instantiate object with no start, end, or progress methods. Reimplemented from vtkImageSpatialFilter.

virtual const char* vtkImageVariance3D::GetClassName (    )  [virtual]

Return the class name as a string. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImageSpatialFilter.

int vtkImageVariance3D::IsTypeOf (  const char *    type )  [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 vtkImageSpatialFilter.

virtual int vtkImageVariance3D::IsA (  const char *    type )  [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 vtkImageSpatialFilter.

vtkImageVariance3D* vtkImageVariance3D::SafeDownCast (  vtkObject *    o )  [static]

Will cast the supplied object to vtkObject* is this is a safe operation (i.e., a safe downcast); otherwise NULL is returned. This method is defined in all subclasses of vtkObject with the vtkTypeMacro found in vtkSetGet.h. Reimplemented from vtkImageSpatialFilter.

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 vtkImageSpatialFilter.

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.

void vtkImageVariance3D::operator= (  const vtkImageVariance3D &    )  [inline, protected]

Definition at line 82 of file vtkImageVariance3D.h.

void vtkImageVariance3D::ExecuteInformation (  vtkImageData *    inData, vtkImageData *    outData )  [protected, virtual]

Reimplemented from vtkImageSpatialFilter.

void vtkImageVariance3D::ExecuteInformation (    )  [inline, protected, virtual]

Reimplemented from vtkImageSpatialFilter. Definition at line 87 of file vtkImageVariance3D.h.

void vtkImageVariance3D::ThreadedExecute (  vtkImageData *    inData, vtkImageData *    outData, int    extent[6], int    id )  [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 vtkImageToImageFilter.

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Member Data Documentation

vtkImageEllipsoidSource* vtkImageVariance3D::Ellipse [protected]

Definition at line 84 of file vtkImageVariance3D.h.

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

• imaging/vtkImageVariance3D.h

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