API Quick Reference Guide

  • 2020
  • 09/30/2019
  • Public Content
Contents

iwiSub

Syntax

typedef struct _IwiSubParams { int scaleFactor; IwiChDescriptor chDesc; } IwiSubParams;
static IW_INLINE void iwiSub_SetDefaultParams( IwiSubParams *pParams )
IW_DECL(IppStatus) iwiSub( const IwiImage *pSrc1Image, const IwiImage *pSrc2Image, IwiImage *pDstImage, const IwiSubParams *pAuxParams, const IwiTile *pTile );
Parameters
pSrc1Image
Pointer to the image to be subtracted from another image.
pSrc2Image
Pointer to the image from which the
pSrc1Image
is subtracted.
pDstImage
Pointer to the resulting image (can be the same as
pSrc2Image
).
pAuxParams
Pointer to the auxiliary parameters structure. If
NULL
, default parameters are used.
pTile
Pointer to the
IwiTile
structure for tiling. If
NULL
, the whole image is processed.
Auxiliary Arguments
Argument
Default Value
Description
scaleFactor
0
Scale factor.
chDesc
iwiChDesc_None
IwiChDescriptor
value.
Description
This function subtracts one source image from another and puts the result to
pDstImage
.
This function supports the following features:
Feature
Support
In-place mode
Yes
64-bit sizes
Yes
Internal threading
No
Manual tiling
Yes
IwsTile
simple tiling
Yes
IwsTile
pipeline tiling
Yes
Return Values
ippStsDataTypeErr
The
dataType
value is illegal.
ippStsNumChannelsErr
The value for channels is illegal.
ippStsSizeErr
Values for size fields are illegal.
ippStsNullPtrErr
At least one of the pointers (except
pTile
) is
NULL
.
ippStsNoErr
No errors.

Product and Performance Information

1

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