---

vtkImageNonMaximumSuppression Class Reference

Performs non-maximum suppression. More...

#include <vtkImageNonMaximumSuppression.h>

Inheritance diagram for vtkImageNonMaximumSuppression:

[legend]Collaboration diagram for vtkImageNonMaximumSuppression:

[legend]List of all members.

Public Methods
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
void	SetMagnitudeInput (vtkImageData *input)
void	SetVectorInput (vtkImageData *input)
virtual void	SetHandleBoundaries (int)
virtual int	GetHandleBoundaries ()
virtual void	HandleBoundariesOn ()
virtual void	HandleBoundariesOff ()
virtual void	SetDimensionality (int)
virtual int	GetDimensionality ()
Static Public Methods
vtkImageNonMaximumSuppression *	New ()
int	IsTypeOf (const char *type)
vtkImageNonMaximumSuppression *	SafeDownCast (vtkObject *o)
Protected Methods
	vtkImageNonMaximumSuppression ()
	~vtkImageNonMaximumSuppression ()
void	ExecuteInformation (vtkImageData **inDatas, vtkImageData *outData)
virtual void	ComputeInputUpdateExtent (int inExt[6], int outExt[6], int whichInput)
void	ExecuteInformation ()
void	ThreadedExecute (vtkImageData **inDatas, vtkImageData *outData, int extent[6], int id)
Protected Attributes
int	HandleBoundaries
int	Dimensionality

---

Detailed Description

Performs non-maximum suppression.

Date:

2001/11/13 14:32:39

Revision:

1.33

Thanks:

Thanks to C. Charles Law who developed this class.

vtkImageNonMaximumSuppression Sets to zero any pixel that is not a peak. If a pixel has a neighbor along the vector that has larger magnitude, the smaller pixel is set to zero. The filter takes two inputs: a magnitude and a vector. Output is magnitude information and is always in floats. Typically this filter is used with vtkImageGradient and vtkImageGradientMagnitude as inputs.

Tests:

vtkImageNonMaximumSuppression (Tests)

Definition at line 66 of file vtkImageNonMaximumSuppression.h.

---

Constructor & Destructor Documentation

vtkImageNonMaximumSuppression::vtkImageNonMaximumSuppression (    )  [protected]

vtkImageNonMaximumSuppression::~vtkImageNonMaximumSuppression (    )  [inline, protected]

Definition at line 96 of file vtkImageNonMaximumSuppression.h.

---

Member Function Documentation

vtkImageNonMaximumSuppression* vtkImageNonMaximumSuppression::New (    )  [static]

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

virtual const char* vtkImageNonMaximumSuppression::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 vtkImageTwoInputFilter.

int vtkImageNonMaximumSuppression::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 vtkImageTwoInputFilter.

virtual int vtkImageNonMaximumSuppression::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 vtkImageTwoInputFilter.

vtkImageNonMaximumSuppression* vtkImageNonMaximumSuppression::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 vtkImageTwoInputFilter.

void vtkImageNonMaximumSuppression::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 vtkImageMultipleInputFilter.

void vtkImageNonMaximumSuppression::SetMagnitudeInput (  vtkImageData *    input )  [inline]

Set the magnitude and vector inputs. Definition at line 75 of file vtkImageNonMaximumSuppression.h.

void vtkImageNonMaximumSuppression::SetVectorInput (  vtkImageData *    input )  [inline]

Set the magnitude and vector inputs. Definition at line 76 of file vtkImageNonMaximumSuppression.h.

virtual void vtkImageNonMaximumSuppression::SetHandleBoundaries (  int    )  [virtual]

If "HandleBoundariesOn" then boundary pixels are duplicated So central differences can get values.

virtual int vtkImageNonMaximumSuppression::GetHandleBoundaries (    )  [virtual]

If "HandleBoundariesOn" then boundary pixels are duplicated So central differences can get values.

virtual void vtkImageNonMaximumSuppression::HandleBoundariesOn (    )  [virtual]

If "HandleBoundariesOn" then boundary pixels are duplicated So central differences can get values.

virtual void vtkImageNonMaximumSuppression::HandleBoundariesOff (    )  [virtual]

If "HandleBoundariesOn" then boundary pixels are duplicated So central differences can get values.

virtual void vtkImageNonMaximumSuppression::SetDimensionality (  int    )  [virtual]

Determines how the input is interpreted (set of 2d slices or a 3D volume)

virtual int vtkImageNonMaximumSuppression::GetDimensionality (    )  [virtual]

Determines how the input is interpreted (set of 2d slices or a 3D volume)

void vtkImageNonMaximumSuppression::ExecuteInformation (  vtkImageData **    inDatas, vtkImageData *    outData )  [protected, virtual]

Reimplemented from vtkImageMultipleInputFilter.

virtual void vtkImageNonMaximumSuppression::ComputeInputUpdateExtent (  int    inExt[6], int    outExt[6], int    whichInput )  [protected, virtual]

Reimplemented from vtkImageMultipleInputFilter.

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

Reimplemented from vtkImageMultipleInputFilter. Definition at line 104 of file vtkImageNonMaximumSuppression.h.

void vtkImageNonMaximumSuppression::ThreadedExecute (  vtkImageData **    inDatas, vtkImageData *    outData, int    extent[6], int    id )  [protected, virtual]

The execute method created by the subclass. This is kept public instead of protected since it is called from a non-member thread function. Reimplemented from vtkImageMultipleInputFilter.

---

Member Data Documentation

int vtkImageNonMaximumSuppression::HandleBoundaries [protected]

Definition at line 98 of file vtkImageNonMaximumSuppression.h.

int vtkImageNonMaximumSuppression::Dimensionality [protected]

Definition at line 99 of file vtkImageNonMaximumSuppression.h.

---

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

• Imaging/vtkImageNonMaximumSuppression.h

---