Developer Reference

  • 2021
  • 01/15/2021
  • Public Content
Contents

DeconvFFTGetSize

Computes the size of the state structure for deconvolution with the fast Fourier transform (FFT).

Syntax

IppStatus ippiDeconvFFTGetSize_32f(int
nChannels
, int
kernelSize
, int
FFTorder
, int*
pSize
);
Include Files
ippi.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
Parameters
nChannels
Number of channels in the image. Possible values are 1 or 3.
kernelSize
Size of the kernel.
FFTorder
Order of the created FFT state structure.
pSize
Pointer to the size of the
IppiDeconvFFTState_32f_C1R
or
IppiDeconvFFTState_32f_C3R
structure, in bytes.
Description
This function computes the fast Fourier transform (FFT) deconvolution state structure size that is required to initialize the structure with the
ippiDeconvFFTInit
function. This structure is used by the
ippiDeconvFFT
function, which performs deconvolution of the source image using FFT.
Return Values
ippStsNoErr
Indicates no error. Any other value indicates an error or a warning.
ippStsNullPtrErr
Indicates an error when any of the specified pointers is
NULL
.
ippStsNumChannelsErr
Indicates an error when
nChannels
has an illegal value.
ippStsSizeErr
Indicates an error when
kernelSize
is less than, or equal to 0; or if
kernelSize
is greater than 2
FFTorder
.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.