Intel® Integrated Performance Primitives Developer Reference

Developer Reference

  • 2021
  • 03/26/2021
  • Public Content
Contents

HOGInit

Initializes the HOG context structure.

Syntax

IppStatus ippiHOGInit(const IppiHOGConfig*
pConfig
, IppiHOGSpec*
pHOGSpec
);
Include Files
ippi.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
Parameters
pConfig
Pointer to the HOG context structure.
pHOGSpec
Pointer to the HOG context structure.
Description
This function checks the parameters of the HOG configuration and initializes the HOG context structure.
For an example on how to use this function, refer to the example provided with the HOG function description.
Return Values
ippStsNoErr
Indicates no error. Any other value indicates an error or a warning.
ippStsNullPtrErr
Indicates an error when one of the specified pointers is
NULL
.
ippStsSizeErr
Indicates an error when one of the
winSize
 fields in the
pConfig
 parameter has a zero or negative value.
ippStsNotSupportedModeErr
Indicates an error in HOG configuration:
  • cellSize
     is less than 2, or more than
    IPP_HOG_MAX_CELL
  • cellSize
     is more than
    blockSize
    , or
    blockSize
     is more than
    IPP_HOG_MAX_BLOCK
  • blockSize
     is not a multiple of
    cellSize
  • Block does not have 2x2 cell geometry
  • blockStride
     is not a multiple of
    cellSize
  • Detection window size is not a multiple of
    blockStride
  • nbins
     is less than 2, or more than
    IPP_HOG_MAX_BINS
  • sigma
     or
    threshold
     value is less than, or equal to zero

Product and Performance Information

1

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