Developer Reference

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

EigenValsVecsGetBufferSize

Calculates size of temporary buffer for the function
ippiEigenValsVecs
.

Syntax

IppStatus ippiEigenValsVecsGetBufferSize_32f_C1R(IppiSize
roiSize
,int
apertureSize
, int
avgWindow
, int*
pBufferSize
);
IppStatus ippiEigenValsVecsGetBufferSize_8u32f_C1R(IppiSize
roiSize
, int
apertureSize
, int
avgWindow
, int*
pBufferSize
);
Include Files
ippcv.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
,
ippi.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
,
ippi.lib
Parameters
roiSize
Size of the source image ROI in pixels.
apertureSize
Size (pixels) of the derivative operator used by the function, possible values are 3 or 5.
avgWindow
Size of the blurring window in pixels, possible values are 3 or 5.
pBufferSize
Pointer to the variable that returns the size of the temporary buffer.
Description
This function operates with ROI (see Regions of Interest in Intel IPP).
This function calculates the size of a temporary buffer to be used by the function
ippiEigenValsVecs
.
The parameters
apertureSize
and
avgWindow
must be the same for both functions
ippiEigenValsVecsGetBufferSize
and
ippiEigenValsVecs
.
Example
“Using the function ippiEigenValsVecs”
shows how to use the function ippiEigenValsVecsGetBufferSizee.
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
roiWidth
has zero or negative value, or if
apertureSize
or
avgWindow
has an illegal value.

Product and Performance Information

1

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