API Quick Reference Guide

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

iwiScale

Syntax

IW_DECL(IppStatus) iwiScale( const IwiImage *pSrcImage, IwiImage *pDstImage, Ipp64f mulVal, Ipp64f addVal, const IwiScaleParams *pAuxParams, const IwiTile *pTile );
Parameters
pSrcImage
Pointer to the source image.
pDstImage
Pointer to the destination image.
mulVal
Value of the multiplier used for scaling.
addVal
Offset value for scaling.
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
algoMode
ippAlgHintNone
Option to select the algorithmic implementation of the function.
Description
This function converts the source image from one data type to another with the specified scaling and shifting parameters. The operation is performed by the following formula:
dst=saturate(src*mulVal+addVal)
.
This function supports the following features:
Feature
Support
Internal threading
No
Manual tiling
Yes
IwiTile
simple tiling
Yes
IwiTile
pipeline tiling
Yes
Return Values
ippStsDataTypeErr
The
dataType
value is illegal.
ippStsSizeErr
Values of the
size
fields are illegal.
ippStsInplaceModeNotSupportedErr
In-place operation is not supported:
pSrc
is equal to
pDst
.
ippStsNullPtrErr
At least one of the pointers (except
pTile
) is
NULL
.
ippStsNoErr
No errors.

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 reserved 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