Developer Reference

  • 2020
  • 10/21/2020
  • Public Content
Contents

GradientVectorGetBufferSize

Computes the size of the work buffer for the
ippiGradientVector{Sobel|Scharr|Prewitt}
functions.

Syntax

IppStatus ippiGradientVectorGetBufferSize (IppiSize
roiSize
, IppiMaskSize
mask
, IppDataType
dataType
, int
numChannels
, int*
pBufferSize
);
Include Files
ippi.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
Parameters
roiSize
Size of the destination ROI in pixels.
mask
Predefined mask of
IppiMaskSize
type.
dataType
Data type of the source image.
numChannels
Number of channels in the image.
pBufferSize
Pointer to the computed size of the external work buffer.
Description
The
ippiGradientVectorGetBufferSize
function computes the size (in bytes) of the external work buffer needed for the
ippiGradientVector{Sobel|Scharr|Prewitt}
functions and stores the result in the
pBufferSize
parameter.
Return Values
ippStsNoErr
Indicates no error.
ippStsNullPtrErr
Indicates an error when
pBufferSize
is NULL.
ippStsSizeErr
Indicates an error when one of the fields of
roiSize
has a zero or negative value.
ippStsMaskSizeErr
Indicates an error when
mask
has an illegal value.
ippStsDataTypeErr
Indicates an error when
dataType
has an illegal value.
ippStsNumChannelsErr
Indicates an error when
numChannels
has an illegal value.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserverd for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804