High-quality image resizing filter. More...

#include <vtkImageResize.h>

Inheritance diagram for vtkImageResize:

Collaboration diagram for vtkImageResize:

Public Types
enum	{ OUTPUT_DIMENSIONS, OUTPUT_SPACING, MAGNIFICATION_FACTORS }
typedef vtkThreadedImageAlgorithm	Superclass
Public Types inherited from vtkThreadedImageAlgorithm
Public Types inherited from vtkImageAlgorithm
Public Types inherited from vtkAlgorithm
enum	DesiredOutputPrecision { SINGLE_PRECISION, DOUBLE_PRECISION, DEFAULT_PRECISION }
Public Types inherited from vtkObject

Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
unsigned long int	GetMTime ()

virtual void	SetResizeMethod (int)
virtual int	GetResizeMethod ()
void	SetResizeMethodToOutputDimensions ()
void	SetResizeMethodToOutputSpacing ()
void	SetResizeMethodToMagnificationFactors ()
virtual const char *	GetResizeMethodAsString ()

virtual void	SetOutputDimensions (int, int, int)
virtual void	SetOutputDimensions (int[3])
virtual int *	GetOutputDimensions ()
virtual void	GetOutputDimensions (int &, int &, int &)
virtual void	GetOutputDimensions (int[3])

virtual void	SetOutputSpacing (double, double, double)
virtual void	SetOutputSpacing (double[3])
virtual double *	GetOutputSpacing ()
virtual void	GetOutputSpacing (double &, double &, double &)
virtual void	GetOutputSpacing (double[3])

virtual void	SetMagnificationFactors (double, double, double)
virtual void	SetMagnificationFactors (double[3])
virtual double *	GetMagnificationFactors ()
virtual void	GetMagnificationFactors (double &, double &, double &)
virtual void	GetMagnificationFactors (double[3])

virtual void	SetBorder (int)
virtual void	BorderOn ()
virtual void	BorderOff ()
virtual int	GetBorder ()

virtual void	SetCropping (int)
virtual void	CroppingOn ()
virtual void	CroppingOff ()
virtual int	GetCropping ()

virtual void	SetCroppingRegion (double, double, double, double, double, double)
virtual void	SetCroppingRegion (double[6])
virtual double *	GetCroppingRegion ()
virtual void	GetCroppingRegion (double &, double &, double &, double &, double &, double &)
virtual void	GetCroppingRegion (double[6])

virtual void	SetInterpolate (int)
virtual void	InterpolateOn ()
virtual void	InterpolateOff ()
virtual int	GetInterpolate ()

virtual void	SetInterpolator (vtkAbstractImageInterpolator *sampler)
virtual vtkAbstractImageInterpolator *	GetInterpolator ()
Public Member Functions inherited from vtkThreadedImageAlgorithm
virtual void	ThreadedExecute (vtkImageData inData, vtkImageData outData, int extent[6], int threadId)
virtual void	SetNumberOfThreads (int)
virtual int	GetNumberOfThreads ()
virtual int	SplitExtent (int splitExt[6], int startExt[6], int num, int total)
Public Member Functions inherited from vtkImageAlgorithm
vtkDataObject *	GetInput (int port)
vtkDataObject *	GetInput ()
vtkImageData *	GetImageDataInput (int port)
vtkImageData *	GetOutput ()
vtkImageData *	GetOutput (int)
virtual void	SetOutput (vtkDataObject *d)
virtual int	ProcessRequest (vtkInformation , vtkInformationVector , vtkInformationVector )
void	SetInputData (vtkDataObject *)
void	SetInputData (int, vtkDataObject *)
virtual void	AddInputData (vtkDataObject *)
virtual void	AddInputData (int, vtkDataObject *)
Public Member Functions inherited from vtkAlgorithm
int	HasExecutive ()
vtkExecutive *	GetExecutive ()
virtual void	SetExecutive (vtkExecutive *executive)
virtual int	ModifyRequest (vtkInformation *request, int when)
vtkInformation *	GetInputPortInformation (int port)
vtkInformation *	GetOutputPortInformation (int port)
int	GetNumberOfInputPorts ()
int	GetNumberOfOutputPorts ()
void	UpdateProgress (double amount)
vtkInformation *	GetInputArrayInformation (int idx)
void	RemoveAllInputs ()
vtkDataObject *	GetOutputDataObject (int port)
virtual void	RemoveInputConnection (int port, vtkAlgorithmOutput *input)
virtual void	RemoveInputConnection (int port, int idx)
virtual void	RemoveAllInputConnections (int port)
int	GetNumberOfInputConnections (int port)
int	GetTotalNumberOfInputConnections ()
vtkAlgorithmOutput *	GetInputConnection (int port, int index)
vtkAlgorithm *	GetInputAlgorithm (int port, int index, int &algPort)
vtkAlgorithm *	GetInputAlgorithm (int port, int index)
vtkExecutive *	GetInputExecutive (int port, int index)
vtkInformation *	GetInputInformation (int port, int index)
vtkInformation *	GetOutputInformation (int port)
virtual void	UpdateInformation ()
virtual void	PropagateUpdateExtent ()
virtual void	UpdateWholeExtent ()
void	ConvertTotalInputToPortConnection (int ind, int &port, int &conn)
virtual double	ComputePriority ()
int	SetUpdateExtentToWholeExtent (int port)
int	SetUpdateExtentToWholeExtent ()
void	SetUpdateExtent (int port, int extent[6])
int	ProcessRequest (vtkInformation request, vtkCollection inInfo, vtkInformationVector *outInfo)
virtual int	ComputePipelineMTime (vtkInformation request, vtkInformationVector inInfoVec, vtkInformationVector outInfoVec, int requestFromOutputPort, unsigned long *mtime)
virtual vtkInformation *	GetInformation ()
virtual void	SetInformation (vtkInformation *)
virtual void	Register (vtkObjectBase *o)
virtual void	UnRegister (vtkObjectBase *o)
virtual void	SetAbortExecute (int)
virtual int	GetAbortExecute ()
virtual void	AbortExecuteOn ()
virtual void	AbortExecuteOff ()
virtual void	SetProgress (double)
virtual double	GetProgress ()
void	SetProgressText (const char *ptext)
virtual char *	GetProgressText ()
virtual unsigned long	GetErrorCode ()
virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name)
virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType)
virtual void	SetInputArrayToProcess (int idx, vtkInformation *info)
virtual void	SetInputArrayToProcess (int idx, int port, int connection, const char fieldAssociation, const char attributeTypeorName)
vtkDataObject *	GetInputDataObject (int port, int connection)
virtual void	SetInputConnection (int port, vtkAlgorithmOutput *input)
virtual void	SetInputConnection (vtkAlgorithmOutput *input)
virtual void	AddInputConnection (int port, vtkAlgorithmOutput *input)
virtual void	AddInputConnection (vtkAlgorithmOutput *input)
vtkAlgorithmOutput *	GetOutputPort (int index)
vtkAlgorithmOutput *	GetOutputPort ()
vtkAlgorithm *	GetInputAlgorithm ()
vtkExecutive *	GetInputExecutive ()
vtkInformation *	GetInputInformation ()
virtual void	Update (int port)
virtual void	Update ()
virtual void	SetReleaseDataFlag (int)
virtual int	GetReleaseDataFlag ()
void	ReleaseDataFlagOn ()
void	ReleaseDataFlagOff ()
int	UpdateExtentIsEmpty (vtkInformation pinfo, vtkDataObject output)
int	UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType)
void	SetUpdateExtent (int port, int piece, int numPieces, int ghostLevel)
void	SetUpdateExtent (int piece, int numPieces, int ghostLevel)
void	SetUpdateExtent (int extent[6])
int *	GetUpdateExtent ()
int *	GetUpdateExtent (int port)
void	GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
void	GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)
void	GetUpdateExtent (int extent[6])
void	GetUpdateExtent (int port, int extent[6])
int	GetUpdatePiece ()
int	GetUpdatePiece (int port)
int	GetUpdateNumberOfPieces ()
int	GetUpdateNumberOfPieces (int port)
int	GetUpdateGhostLevel ()
int	GetUpdateGhostLevel (int port)
Public Member Functions inherited from vtkObject
virtual void	DebugOn ()
virtual void	DebugOff ()
unsigned char	GetDebug ()
void	SetDebug (unsigned char debugFlag)
virtual void	Modified ()
unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)
vtkCommand *	GetCommand (unsigned long tag)
void	RemoveObserver (vtkCommand *)
void	RemoveObservers (unsigned long event, vtkCommand *)
void	RemoveObservers (const char event, vtkCommand )
int	HasObserver (unsigned long event, vtkCommand *)
int	HasObserver (const char event, vtkCommand )
void	RemoveObserver (unsigned long tag)
void	RemoveObservers (unsigned long event)
void	RemoveObservers (const char *event)
void	RemoveAllObservers ()
int	HasObserver (unsigned long event)
int	HasObserver (const char *event)
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
int	InvokeEvent (unsigned long event, void *callData)
int	InvokeEvent (const char event, void callData)
int	InvokeEvent (unsigned long event)
int	InvokeEvent (const char *event)
Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
virtual void	Delete ()
virtual void	FastDelete ()
void	Print (ostream &os)
void	SetReferenceCount (int)
void	PrintRevisions (ostream &)
virtual void	PrintHeader (ostream &os, vtkIndent indent)
virtual void	PrintTrailer (ostream &os, vtkIndent indent)
int	GetReferenceCount ()

Static Public Member Functions
static vtkImageResize *	New ()
static int	IsTypeOf (const char *type)
static vtkImageResize *	SafeDownCast (vtkObject *o)

Protected Member Functions
	vtkImageResize ()
	~vtkImageResize ()
virtual vtkAbstractImageInterpolator *	GetInternalInterpolator ()
virtual int	RequestInformation (vtkInformation , vtkInformationVector , vtkInformationVector )
virtual int	RequestUpdateExtent (vtkInformation , vtkInformationVector , vtkInformationVector )
virtual int	RequestData (vtkInformation , vtkInformationVector , vtkInformationVector )
virtual void	ThreadedRequestData (vtkInformation request, vtkInformationVector inputVector, vtkInformationVector outputVector, vtkImageData *inData, vtkImageData outData, int ext[6], int id)
Protected Member Functions inherited from vtkThreadedImageAlgorithm
	vtkThreadedImageAlgorithm ()
	~vtkThreadedImageAlgorithm ()
Protected Member Functions inherited from vtkImageAlgorithm
	vtkImageAlgorithm ()
	~vtkImageAlgorithm ()
virtual void	CopyInputArrayAttributesToOutput (vtkInformation request, vtkInformationVector inputVector, vtkInformationVector outputVector)
virtual void	AllocateOutputData (vtkImageData out, vtkInformation outInfo, int *uExtent)
virtual vtkImageData *	AllocateOutputData (vtkDataObject out, vtkInformation outInfo)
virtual void	CopyAttributeData (vtkImageData in, vtkImageData out, vtkInformationVector **inputVector)
virtual int	FillOutputPortInformation (int port, vtkInformation *info)
virtual int	FillInputPortInformation (int port, vtkInformation *info)
virtual void	ExecuteDataWithInformation (vtkDataObject output, vtkInformation outInfo)
virtual void	ExecuteData (vtkDataObject *output)
virtual void	Execute ()
Protected Member Functions inherited from vtkAlgorithm
	vtkAlgorithm ()
	~vtkAlgorithm ()
virtual void	SetNumberOfInputPorts (int n)
virtual void	SetNumberOfOutputPorts (int n)
int	InputPortIndexInRange (int index, const char *action)
int	OutputPortIndexInRange (int index, const char *action)
int	GetInputArrayAssociation (int idx, vtkInformationVector **inputVector)
virtual vtkExecutive *	CreateDefaultExecutive ()
virtual void	ReportReferences (vtkGarbageCollector *)
virtual void	SetNumberOfInputConnections (int port, int n)
int	GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector)
int	GetInputArrayAssociation (int idx, vtkDataObject *input)
vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector)
vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input)
vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input, int &association)
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector)
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input)
vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association)
vtkInformation *	GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector)
virtual void	SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input)
void	SetInputDataInternal (int port, vtkDataObject *input)
void	AddInputDataInternal (int port, vtkDataObject *input)
virtual void	SetErrorCode (unsigned long)
Protected Member Functions inherited from vtkObject
	vtkObject ()
virtual	~vtkObject ()
virtual void	RegisterInternal (vtkObjectBase *, int check)
virtual void	UnRegisterInternal (vtkObjectBase *, int check)
void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=NULL)
void	InternalReleaseFocus ()
Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()
virtual	~vtkObjectBase ()
virtual void	CollectRevisions (ostream &)
	vtkObjectBase (const vtkObjectBase &)
void	operator= (const vtkObjectBase &)

Protected Attributes
int	ResizeMethod
int	OutputDimensions [3]
double	OutputSpacing [3]
double	MagnificationFactors [3]
int	Border
int	Cropping
double	CroppingRegion [6]
double	IndexStretch [3]
double	IndexTranslate [3]
vtkAbstractImageInterpolator *	Interpolator
vtkAbstractImageInterpolator *	NNInterpolator
int	Interpolate
Protected Attributes inherited from vtkThreadedImageAlgorithm
vtkMultiThreader *	Threader
int	NumberOfThreads

Detailed Description

High-quality image resizing filter.

vtkImageResize will magnify or shrink an image with interpolation and antialiasing. The resizing is done with a 5-lobe Lanczos-windowed sinc filter that is bandlimited to the output sampling frequency in order to avoid aliasing when the image size is reduced. This filter utilizes a O(n) algorithm to provide good effiency even though the filtering kernel is large. The sinc interpolator can be turned off if nearest-neighbor interpolation is required, or it can be replaced with a different vtkImageInterpolator object.

Thanks:: Thanks to David Gobbi for contributing this class to VTK.

Tests:: vtkImageResize (Tests)

Definition at line 41 of file vtkImageResize.h.

Member Typedef Documentation

typedef vtkThreadedImageAlgorithm vtkImageResize::Superclass

Reimplemented from vtkThreadedImageAlgorithm.

Definition at line 45 of file vtkImageResize.h.

Member Enumeration Documentation

anonymous enum

Enumerator:

OUTPUT_DIMENSIONS
OUTPUT_SPACING
MAGNIFICATION_FACTORS

Definition at line 48 of file vtkImageResize.h.

Constructor & Destructor Documentation

vtkImageResize::vtkImageResize ( )

protected

vtkImageResize::~vtkImageResize ( )

protected

Member Function Documentation

static vtkImageResize* vtkImageResize::New ( )

static

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

Reimplemented from vtkAlgorithm.

virtual const char* vtkImageResize::GetClassName ( )

virtual

Reimplemented from vtkThreadedImageAlgorithm.

static int vtkImageResize::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 vtkThreadedImageAlgorithm.

virtual int vtkImageResize::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 vtkThreadedImageAlgorithm.

static vtkImageResize* vtkImageResize::SafeDownCast ( vtkObject * o )

static

Reimplemented from vtkThreadedImageAlgorithm.

void vtkImageResize::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 vtkThreadedImageAlgorithm.

virtual void vtkImageResize::SetResizeMethod ( int )

virtual