API Quick Reference Guide

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

iwiFilterLaplacian

Syntax

typedef struct _IwiFilterLaplacianParams { int reserved; } IwiFilterLaplacianParams;
static IW_INLINE void iwiFilterLaplacian_SetDefaultParams( IwiFilterLaplacianParams *pParams );
IW_DECL(IppStatus) iwiFilterLaplacian( const IwiImage *pSrcImage, IwiImage *pDstImage, IppiMaskSize kernelSize, const IwiFilterLaplacianParams *pAuxParams IppiBorderType border, const Ipp64f *pBorderVal, const IwiTile *pTile );
Parameters
pSrcImage
Pointer to the source image.
pDstImage
Pointer to the destination image.
kernelSize
Size of the filter kernel. Supported values:
ippMskSize3x3
,
ippMskSize5x5
pAuxParams
Pointer to the auxiliary parameters structure. If
NULL
, 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.
Auxiliary Arguments
Argument
Default Value
Descriptions
reserved
0
Reserved value.
Description
This function applies a Laplacian filter of the specified type and kernel size to the source image. The values of border pixels are assigned in accordance with the
border
and
pBorderValue
parameters. The kernel of the filter is a matrix of 3x3 or 5x5 size depending on the
kernelSize
value.
This function supports the following features:
Feature
Support
Internal threading
No
Manual tiling
Yes
IwiTile
simple tiling
Yes
IwiTile
pipeline tiling
Yes
Return Values
ippStsNoErr
No errors.
ippStsNotSupportedModeErr
Specified combination of parameters' values is not supported.
ippStsMaskSizeErr
The
kernel
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.
ippStsBorderErr
The
border
value is illegal.
ippStsNoMemErr
Failed to allocate memory.
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
.

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