DeconvFFTInitAlloc

Allocates and initializes state structure for FFT deconvolution.

Syntax

IppStatus ippiDeconvFFTInitAlloc_32f_C1R(IppiDeconvFFTState_32f_C1R** ppDeconvFFTState, const Ipp32f* pKernel, int kernelSize, int FFTorder, Ipp32f threshold);

IppStatus ippiDeconvFFTInitAlloc_32f_C3R(IppiDeconvFFTState_32f_C3R** ppDeconvFFTState, const Ipp32f* pKernel, int kernelSize, int FFTorder, Ipp32f threshold);

Parameters

ppDeconvFFTState	Double pointer to the FFT deconvolution state structure.
pKernel	Pointer to the kernel array.
kernelSize	Size of the kernel.
FFTorder	Order of the created FFT state structure.
threshold	Value of the threshold level (to exclude dividing by zero).

Description

The function ippiDeconvFFTInitAlloc is declared in the ippi.h file. It operates with ROI (see Regions of Interest in Intel IPP).

This function allocates memory, initializes the deconvolution state structure and returns the pointer ppDeconvFFTState to it. This structure is used by the function ippiDeconvFFT that 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 condition if one of the specified pointers is NULL.
ippStsSizeErr	Indicates an error condition if kernelSize is less than or equal to 0, or if kernelSize is greater than 2^FFTorder.
ippStsBadArgErr	Indicates an error condition if threshold is less than or equal to 0.