Developer Reference

  • 2020
  • 07/15/2020
  • Public Content
Contents

LBPImageMode

Calculates LBP of the image according to the specified mode.

Syntax

IppStatus ippiLBPImageMode3x3_<mod>(const Ipp<srcDatatype>*
pSrc
, int srcStep, Ipp<dstDatatype>*
pDst
, int
dstStep
, IppiSize
dstRoiSize
, int
mode
, IppiBorderType
borderType
, const Ipp<srcDatatype>*
borderValue
);
Supported values for
mod
:
8u_C1R
32f8u_C1R
IppStatus ippiLBPImageMode5x5_<mod>(const Ipp<srcDatatype>*
pSrc
, int srcStep, Ipp<dstDatatype>*
pDst
, int
dstStep
, IppiSize
dstRoiSize
, int
mode
, IppiBorderType
borderType
, const Ipp<srcDatatype>*
borderValue
);
8u_C1R
8u16u_C1R
32f8u_C1R
32f16u_C1R
Include Files
ippi.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
Parameters
pSrc
Pointer to the source image ROI.
srcStep
Distance, in bytes, between the starting points of consecutive lines in the source image.
pDst
Pointer to the destination image ROI.
dstStep
Distance, in bytes, between the starting points of consecutive lines in the destination image.
dstRoiSize
Size of the destination ROI, in pixels.
mode
Mode for LBP calculation. Supported values are 0, 1, 2, 3.
borderType
Type of border. Possible values are:
ippBorderRepl
Border is replicated from the edge pixels.
ippBorderInMem
Border is obtained from the source image pixels in memory.
Mixed borders are also supported. They can be obtained by the bitwise operation OR between
ippBorderRepl
and
ippBorderInMemTop
,
ippBorderInMemBottom
,
ippBorderInMemLeft
,
ippBorderInMemRight
.
borderValue
Constant value to assign to pixels of the constant border. This parameter is applicable only to the
ippBorderConst
border type.
Description
These functions operate with ROI (see Regions of Interest in Intel IPP).
The
ippiLBPImageMode3x3
and
ippiLBPImageMode5x5
functions calculate LBP of the
pSrc
image ROI according to the
mode
value. The result is stored in the
pDst
destination image.
Return Values
ippStsNoErr
Indicates no error.
ippStsNullPtrErr
Indicates an error when one of the specified pointers is NULL.
ippStsSizeErr
Indicates an error if
dstRoiSize
has a field with a zero or negative value.
ippStsBadArgErr
Indicates an error when
border
has an illegal value.

Example

/******************************************************************************* * Copyright 2015-2020 Intel Corporation. * * This software and the related documents are Intel copyrighted materials, and * your use of them is governed by the express license under which they were * provided to you (License). Unless the License provides otherwise, you may not * use, modify, copy, publish, distribute, disclose or transmit this software or * the related documents without Intel's prior written permission. * * This software and the related documents are provided as is, with no express * or implied warranties, other than those that are expressly stated in the * License. *******************************************************************************/ // A simple example of calculating the LBP of the image // using Intel(R) Integrated Primitives (Intel(R) IPP) function: // ippiLBPImageMode3x3_8u_C1R #include <stdio.h> #include "ipp.h" #define WIDTH 128 /* image width */ #define HEIGHT 64 /* image height */ /* Next two defines are created to simplify code reading and understanding */ #define EXIT_MAIN exitLine: /* Label for Exit */ #define check_sts(st) if((st) != ippStsNoErr) goto exitLine; /* Go to Exit if Intel(R) IPP function returned status different from ippStsNoErr */ /* Results of ippMalloc() are not validated because Intel(R) IPP functions perform bad arguments check and will return an appropriate status */ int main(void) { IppStatus status = ippStsNoErr; Ipp8u* pSrc = NULL, *pDst = NULL; /* Pointers to source/destination images */ int srcStep = 0, dstStep = 0; /* Steps, in bytes, through the source/destination images */ IppiSize roiSize = { WIDTH, HEIGHT }; /* Size of source/destination ROI in pixels */ int mode = 0; /* Specifies how LBP is created */ const Ipp8u borderValue[1] = { 3 }; pSrc = ippiMalloc_8u_C1(roiSize.width, roiSize.height, &srcStep); pDst = ippiMalloc_8u_C1(roiSize.width, roiSize.height, &dstStep); check_sts( status = ippiLBPImageMode3x3_8u_C1R(pSrc, srcStep, pDst, dstStep, roiSize, mode, ippBorderRepl, borderValue) ) EXIT_MAIN ippiFree(pSrc); ippiFree(pDst); printf("Exit status %d (%s)\n", (int)status, ippGetStatusString(status)); return (int)status; }

Product and Performance Information

1

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Notice revision #20110804