#include <vtkImageFFT.h>
Inheritance diagram for vtkImageFFT:
vtkImageFFT implements a 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.
Definition at line 37 of file vtkImageFFT.h.
int  SplitExtent (int splitExt[6], int startExt[6], int num, int total) 
static vtkImageFFT *  SafeDownCast (vtkObject *o) 
Public Types  
typedef vtkImageFourierFilter  Superclass 
Public Member Functions  
virtual const char *  GetClassName () 
virtual int  IsA (const char *type) 
Static Public Member Functions  
static vtkImageFFT *  New () 
static int  IsTypeOf (const char *type) 
Protected Member Functions  
vtkImageFFT ()  
~vtkImageFFT ()  
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) 

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3. Reimplemented from vtkImageFourierFilter. Definition at line 41 of file vtkImageFFT.h. 

Definition at line 56 of file vtkImageFFT.h. 

Definition at line 57 of file vtkImageFFT.h. 

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

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3. Reimplemented from vtkImageFourierFilter. 

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3. Reimplemented from vtkImageFourierFilter. 

Construct an instance of vtkImageDecomposeFilter filter with default dimensionality 3. Reimplemented from vtkImageFourierFilter. 

Used internally 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 vtkImageFourierFilter. 

Used internally 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. 

Reimplemented from vtkImageIterateFilter. 

Reimplemented from vtkImageIterateFilter. 

Reimplemented from vtkThreadedImageAlgorithm. 