Developer Reference

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

HaarClassifierGetSize

Computes the size of the structure for standard Haar classifiers.

Syntax

IppStatus ippiHaarClassifierGetSize(IppDataType
dataType
, IppiSize
roiSize
, const int*
pNum
, int
length
, int*
pSize
);
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
dataType
Data type of the source image. Possible values:
ipp32f
,
ipp32s
.
roiSize
Maximal size of the source image ROI, in pixels.
pNum
Pointer to the array of Haar classifier lengths.
length
Number of classifiers in the stage.
pSize
Pointer to the size of Haar classifier structure.
Description
This function operates with ROI (see Regions of Interest in Intel IPP).
This function computes the size of the
pState
structure that is required to calculate the sequence of Haar classifiers - classification stage. The
i
-th classifier in the stage has
pNum[i]
rectangular features.
The length of the
pThreshold
,
pVal1
, and
pVal2
vectors used in the
ippiHaarClassifierInit
function is equal to
length
.
The length of the
pFeature
and
pWeight
vectors is equal to:
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
.
ippStsSizeErr
Indicates an error when:
  • length
    or one of the
    pNum[i]
    values is less than, or equal to zero
  • roiSize
    has a field with a zero or negative value
ippStsBadArgErr
Indicates an error when one of the features is defined incorrectly.
ippStsDataTypeErr
Indicates an error when
dataType
has an illegal value.

Product and Performance Information

1

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