Developer Reference

  • 2020
  • 10/21/2020
  • Public Content
Contents

LBPImageHorizCorr

Calculates a correlation between two LBPs.

Syntax

IppStatus ippiLBPImageHorizCorr_<mod>(const Ipp<datatype>*
pSrc1
, int src1Step, const Ipp<datatype>*
pSrc2
, int
src2Step
, Ipp<datatype>*
pDst
, int
dstStep
, IppiSize
dstRoiSize
, int
horShift
, IppiBorderType
borderType
, const Ipp<datatype>*
borderValue
);
Supported values for
mod
:
8u_C1R
16u_C1R
Include Files
ippi.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
Parameters
pSrc1, pSrc2
Pointers to the source image ROI.
src1Step, src2Step
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.
horShift
Horizontal shift of the
pSrc2
image.
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
This function operates with ROI.
This function calculates the difference between two LBP images. 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 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 a correlation between // two LBPs using Intel(R) Integrated Primitives (Intel(R) IPP) function: // ippiLBPImageHorizCorr_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* pSrc1 = NULL, *pSrc2 = NULL, *pDst = NULL; /* Pointers to source/destination images */ int srcStep1 = 0, srcStep2 = 0, dstStep = 0; /* Steps, in bytes, through the source/destination images */ IppiSize roiSize = { WIDTH, HEIGHT }; /* Size of source/destination ROI in pixels */ const Ipp8u borderValue[1] = { 3 }; int shift = 4; /* Horizontal shift of the pSrc2 image */ pSrc1 = ippiMalloc_8u_C1(roiSize.width, roiSize.height, &srcStep1); pSrc2 = ippiMalloc_8u_C1(roiSize.width, roiSize.height, &srcStep2); pDst = ippiMalloc_8u_C1(roiSize.width, roiSize.height, &dstStep); check_sts( status = ippiLBPImageHorizCorr_8u_C1R(pSrc1, srcStep1, pSrc2, srcStep2, pDst, dstStep, roiSize, shift, ippBorderRepl, borderValue) ) EXIT_MAIN ippiFree(pSrc1); ippiFree(pSrc2); ippiFree(pDst); printf("Exit status %d (%s)\n", (int)status, ippGetStatusString(status)); return (int)status; }

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