VTK
Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions
vtkImageRFFT Class Reference

Reverse Fast Fourier Transform. More...

#include <vtkImageRFFT.h>

Inheritance diagram for vtkImageRFFT:
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Collaboration diagram for vtkImageRFFT:
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List of all members.

Public Types

typedef vtkImageFourierFilter Superclass
- Public Types inherited from vtkImageFourierFilter
- Public Types inherited from vtkImageIterateFilter
- Public Types inherited from vtkThreadedImageAlgorithm
- Public Types inherited from vtkImageAlgorithm
- Public Types inherited from vtkAlgorithm
- Public Types inherited from vtkObject

Public Member Functions

virtual const char * GetClassName ()
virtual int IsA (const char *type)
int SplitExtent (int splitExt[6], int startExt[6], int num, int total)
- Public Member Functions inherited from vtkImageFourierFilter
void ExecuteFft (vtkImageComplex *in, vtkImageComplex *out, int N)
void ExecuteRfft (vtkImageComplex *in, vtkImageComplex *out, int N)
- Public Member Functions inherited from vtkImageDecomposeFilter
void SetDimensionality (int dim)
virtual int GetDimensionality ()
void PermuteIncrements (vtkIdType *increments, vtkIdType &inc0, vtkIdType &inc1, vtkIdType &inc2)
void PermuteExtent (int *extent, int &min0, int &max0, int &min1, int &max1, int &min2, int &max2)
void PrintSelf (ostream &os, vtkIndent indent)
- Public Member Functions inherited from vtkImageIterateFilter
virtual int GetIteration ()
virtual int GetNumberOfIterations ()
- Public Member Functions inherited from vtkThreadedImageAlgorithm
virtual void ThreadedRequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector, vtkImageData ***inData, vtkImageData **outData, int extent[6], int threadId)
virtual void SetNumberOfThreads (int)
virtual int GetNumberOfThreads ()
- Public Member Functions inherited from vtkImageAlgorithm
vtkDataObjectGetInput (int port)
vtkDataObjectGetInput ()
vtkImageDataGetImageDataInput (int port)
vtkImageDataGetOutput ()
vtkImageDataGetOutput (int)
virtual void SetOutput (vtkDataObject *d)
virtual int ProcessRequest (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
void SetInput (vtkDataObject *)
void SetInput (int, vtkDataObject *)
virtual void AddInput (vtkDataObject *)
virtual void AddInput (int, vtkDataObject *)
- Public Member Functions inherited from vtkAlgorithm
int HasExecutive ()
vtkExecutiveGetExecutive ()
virtual void SetExecutive (vtkExecutive *executive)
virtual int ModifyRequest (vtkInformation *request, int when)
vtkInformationGetInputPortInformation (int port)
vtkInformationGetOutputPortInformation (int port)
int GetNumberOfInputPorts ()
int GetNumberOfOutputPorts ()
void UpdateProgress (double amount)
vtkInformationGetInputArrayInformation (int idx)
void RemoveAllInputs ()
vtkDataObjectGetOutputDataObject (int port)
virtual void RemoveInputConnection (int port, vtkAlgorithmOutput *input)
int GetNumberOfInputConnections (int port)
int GetTotalNumberOfInputConnections ()
vtkAlgorithmOutputGetInputConnection (int port, int index)
virtual void Update ()
virtual void UpdateInformation ()
virtual void UpdateWholeExtent ()
void ConvertTotalInputToPortConnection (int ind, int &port, int &conn)
virtual double ComputePriority ()
int ProcessRequest (vtkInformation *request, vtkCollection *inInfo, vtkInformationVector *outInfo)
virtual int ComputePipelineMTime (vtkInformation *request, vtkInformationVector **inInfoVec, vtkInformationVector *outInfoVec, int requestFromOutputPort, unsigned long *mtime)
virtual vtkInformationGetInformation ()
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)
vtkDataObjectGetInputDataObject (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)
vtkAlgorithmOutputGetOutputPort (int index)
vtkAlgorithmOutputGetOutputPort ()
virtual void SetReleaseDataFlag (int)
virtual int GetReleaseDataFlag ()
void ReleaseDataFlagOn ()
void ReleaseDataFlagOff ()
int UpdateExtentIsEmpty (vtkDataObject *output)
int UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType)
- Public Member Functions inherited from vtkObject
virtual void DebugOn ()
virtual void DebugOff ()
unsigned char GetDebug ()
void SetDebug (unsigned char debugFlag)
virtual void Modified ()
virtual unsigned long GetMTime ()
unsigned long AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
unsigned long AddObserver (const char *event, vtkCommand *, float priority=0.0f)
vtkCommandGetCommand (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)
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 &os)
virtual void PrintHeader (ostream &os, vtkIndent indent)
virtual void PrintTrailer (ostream &os, vtkIndent indent)
int GetReferenceCount ()

Static Public Member Functions

static vtkImageRFFTNew ()
static int IsTypeOf (const char *type)
static vtkImageRFFTSafeDownCast (vtkObject *o)

Protected Member Functions

 vtkImageRFFT ()
 ~vtkImageRFFT ()
virtual int IterativeRequestInformation (vtkInformation *in, vtkInformation *out)
virtual int IterativeRequestUpdateExtent (vtkInformation *in, vtkInformation *out)
void ThreadedExecute (vtkImageData *inData, vtkImageData *outData, int outExt[6], int threadId)
- Protected Member Functions inherited from vtkImageFourierFilter
 vtkImageFourierFilter ()
 ~vtkImageFourierFilter ()
void ExecuteFftStep2 (vtkImageComplex *p_in, vtkImageComplex *p_out, int N, int bsize, int fb)
void ExecuteFftStepN (vtkImageComplex *p_in, vtkImageComplex *p_out, int N, int bsize, int n, int fb)
void ExecuteFftForwardBackward (vtkImageComplex *in, vtkImageComplex *out, int N, int fb)
- Protected Member Functions inherited from vtkImageDecomposeFilter
 vtkImageDecomposeFilter ()
 ~vtkImageDecomposeFilter ()
- Protected Member Functions inherited from vtkImageIterateFilter
 vtkImageIterateFilter ()
 ~vtkImageIterateFilter ()
virtual int RequestUpdateExtent (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
virtual int RequestInformation (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
virtual int RequestData (vtkInformation *request, vtkInformationVector **inputVector, vtkInformationVector *outputVector)
virtual int IterativeRequestData (vtkInformation *, vtkInformationVector **, vtkInformationVector *)
virtual void SetNumberOfIterations (int num)
vtkImageDataGetIterationInput ()
vtkImageDataGetIterationOutput ()
- 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, int *uExtent)
virtual vtkImageDataAllocateOutputData (vtkDataObject *out)
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 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 vtkExecutiveCreateDefaultExecutive ()
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)
vtkDataArrayGetInputArrayToProcess (int idx, vtkInformationVector **inputVector)
vtkDataArrayGetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
vtkDataArrayGetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
vtkDataArrayGetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
vtkDataArrayGetInputArrayToProcess (int idx, vtkDataObject *input)
vtkDataArrayGetInputArrayToProcess (int idx, vtkDataObject *input, int &association)
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector)
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, vtkDataObject *input)
vtkAbstractArrayGetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association)
vtkInformationGetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector)
virtual void SetNthInputConnection (int port, int index, vtkAlgorithmOutput *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 &os)
 vtkObjectBase (const vtkObjectBase &)
void operator= (const vtkObjectBase &)

Detailed Description

Reverse Fast Fourier Transform.

vtkImageRFFT implements the reverse fast Fourier transform. The input can have real or complex data in any components and data types, but the output is always complex doubles with real values in component0, and imaginary values in component1. The filter is fastest for images that have power of two sizes. The filter uses a butterfly fitlers for each prime factor of the dimension. This makes images with prime number dimensions (i.e. 17x17) much slower to compute. Multi dimensional (i.e volumes) FFT's are decomposed so that each axis executes in series. In most cases the RFFT will produce an image whose imaginary values are all zero's. In this case vtkImageExtractComponents can be used to remove this imaginary components leaving only the real image.

See also:
vtkImageExtractComponenents
Tests:
vtkImageRFFT (Tests)

Definition at line 43 of file vtkImageRFFT.h.


Member Typedef Documentation

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3.

Reimplemented from vtkImageFourierFilter.

Definition at line 47 of file vtkImageRFFT.h.


Constructor & Destructor Documentation

vtkImageRFFT::vtkImageRFFT ( )
inlineprotected

Definition at line 62 of file vtkImageRFFT.h.

vtkImageRFFT::~vtkImageRFFT ( )
inlineprotected

Definition at line 63 of file vtkImageRFFT.h.


Member Function Documentation

static vtkImageRFFT* vtkImageRFFT::New ( )
static

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

Reimplemented from vtkAlgorithm.

virtual const char* vtkImageRFFT::GetClassName ( )
virtual

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3.

Reimplemented from vtkImageFourierFilter.

static int vtkImageRFFT::IsTypeOf ( const char *  type)
static

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3.

Reimplemented from vtkImageFourierFilter.

virtual int vtkImageRFFT::IsA ( const char *  type)
virtual

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3.

Reimplemented from vtkImageFourierFilter.

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

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3.

Reimplemented from vtkImageFourierFilter.

int vtkImageRFFT::SplitExtent ( int  splitExt[6],
int  startExt[6],
int  num,
int  total 
)
virtual

For streaming and threads. Splits output update extent into num pieces. This method needs to be called num times. Results must not overlap for consistent starting extent. Subclass can override this method. This method returns the number of pieces resulting from a successful split. This can be from 1 to "total". If 1 is returned, the extent cannot be split.

Reimplemented from vtkThreadedImageAlgorithm.

virtual int vtkImageRFFT::IterativeRequestInformation ( vtkInformation in,
vtkInformation out 
)
protectedvirtual

Reimplemented from vtkImageIterateFilter.

virtual int vtkImageRFFT::IterativeRequestUpdateExtent ( vtkInformation in,
vtkInformation out 
)
protectedvirtual

Reimplemented from vtkImageIterateFilter.

void vtkImageRFFT::ThreadedExecute ( vtkImageData inData,
vtkImageData outData,
int  outExt[6],
int  threadId 
)
protectedvirtual

Reimplemented from vtkThreadedImageAlgorithm.


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