Integration Wrappers for Intel® Integrated Performance Primitives Developer Guide and Reference 2019

API Quick Reference Guide

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

iwiResize

IW_DECL(IppStatus) iwiResize(
    const IwiImage         *pSrcImage,
    IwiImage               *pDstImage,
    IppiInterpolationType   interpolation,
    const IwiResizeParams  *pParams,
    IwiBorderType           border,
    const Ipp64f           *pBorderVal,
    const IwiTile          *pTile
);
Parameters
pSrcImage
Pointer to the source image.
pDstImage
Pointer to the destination image.
interpolation
Interpolation method. Supported values are
ippNearest
,
ippLinear
,
ippCubic
,
ippLanczos
, and
ippSuper
.
pParams
Pointer to the optional parameters structure. If
NULL
, the default parameters are used.
border
Extrapolation algorithm for out of image pixels processing. Supported values:
ippBorderConst
Values of all border pixels are set to a constant.
ippBorderRepl
Border is replicated from the edge pixels.
ippBorderMirror
Border pixels are mirrored from the source image boundary pixels.
ippBorderInMem
Border is obtained from the source image pixels in memory.
pBorderVal
Pointer to an array of values to assign to pixels of the constant border, one element of the array for each channel of the image. This parameter is applicable only to the
ippBorderConst
 border type and can be
NULL
 for other border types.
pTile
Pointer to the
IwiTile
 structure for tiling. If
NULL
, the whole image is processed.
Description
This function performs resize oparation on a given ROI.
This function supports the following features:
Feature
Support
Internal threading
Yes (check the
IW_ENABLE_THREADING_LAYER
 definition)
Manual tiling
No
IwiTile
 simple tiling
Yes
IwiTile
 pipeline tiling
No
Return Values
ippStsNoErr
No errors.
ippStsSizeErr
Values of the
size
 fields are illegal.
ippStsBorderErr
The
border
 value is illegal.
ippStsDataTypeErr
The
dataType
 value is illegal.
ippStsNumChannelsErr
The
channels
 value is illegal.
ippStsNotEvenStepErr
The
srcStep
 and/or
dstStep
 value is not divisible by size of elements.
ippStsInplaceModeNotSupportedErr
In-place operation is not supported:
pSrc
 is equal to
pDst
.
ippStsNotSupportedModeErr
Specified combination of parameters' values is not supported.
ippStsNoMemErr
Failed to allocate memory.
ippStsNullPtrErr
At least one of the pointers (except
pTile
 and
pBorderVal
) is
NULL
.
ippStsNoOperation
Warning: width and/or height of the image is equal to zero.

Product and Performance Information

1

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