Intel® Integrated Performance Primitives (Intel® IPP) Developer Guide and Reference
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MaxEvery
Computes maximum value for each pair of pixels of two images.
Syntax
Case 1: Not-in-place operation
IppStatus ippiMaxEvery_8u_C1R(const Ipp8u* pSrc1, int src1Step, const Ipp8u* pSrc2, int src2Step, Ipp8u* pDst, int dstStep, IppiSize roiSize);
IppStatus ippiMaxEvery_16u_C1R(const Ipp16u* pSrc1, int src1Step, const Ipp16u* pSrc2, int src2Step, Ipp16u* pDst, int dstStep, IppiSize roiSize);
IppStatus ippiMaxEvery_32f_C1R(const Ipp32f* pSrc1, int src1Step, const Ipp32f* pSrc2, int src2Step, Ipp32f* pDst, int dstStep, IppiSize roiSize);
Case 2: In-place operation
IppStatus ippiMaxEvery_<mod>(const Ipp<datatype>* pSrc, int srcStep, Ipp<datatype>* pSrcDst, int srcDstStep, IppiSize roiSize);
Supported values for mod:
8u_C1IR |
16u_C1IR |
16s_C1IR |
32f_C1IR |
8u_C3IR |
16u_C3IR |
16s_C3IR |
32f_C3IR |
8u_C4IR |
16u_C4IR |
16s_C4IR |
32f_C4IR |
8u_AC4IR |
16u_AC4IR |
16s_AC4IR |
32f_AC4IR |
Include Files
ippi.h
Domain Dependencies
Headers: ippcore.h, ippvm.h, ipps.h
Libraries: ippcore.lib, ippvm.lib, ipps.lib
Parameters
pSrc1, pSrc2 |
Pointer to the first and second source image, respectively (for not-in-place operation). |
src1Step, src2Step |
Distance, in bytes, between the starting points of consecutive lines in the first and second source image, respectively (for not-in-place operation). |
pDst |
Pointer to the destination image (for not-in-place operation). |
pSrc |
Pointer to the first source image ROI (for in-place operation). |
srcStep |
Distance, in bytes, between the starting points of consecutive lines in the first source image (for in-place operation). |
dstStep |
Distance, in bytes, between the starting points of consecutive lines in the destination image. |
pSrcDst |
Pointer to the second source and destination image ROI (for in-place operation). |
srcDstStep |
Distance, in bytes, between the starting points of consecutive lines in the second source and destination image (for in-place operation). |
roiSize |
Size of the image ROI in pixels. |
Description
This function operates with ROI (seeRegions of Interest in Intel IPP).
Not-in-place operation:
This function computes the maximum value for each pair of the corresponding pixels of two source images (pSrc1 and pSrc2 for not-in-place operation or pSrc and pSrcDst for in-place), and stores the result in pDst.
In-place operation:
This function computes the maximum value for each pair of the corresponding pixels of two source images pSrc and pSrcDst, and stores the result in pSrcDst:
pSrcDst(i, j) = max(pSrc( i,j), pSrcDst(i, j)).
Return Values
ippStsNoErr |
Indicates no error. Any other value indicates an error or a warning. |
ippStsNullPtrErr |
Indicates an error condition if one of the specified pointers is NULL. |
ippStsSizeErr |
Indicates an error condition if roiSize has a field with zero or negative value. |
ippStsStepErr |
Indicates an error condition if srcStep, src1Step, src2Step or srcDstStep is less than roiSize.width*<pixelSize>. |
ippStsNotEvenStepErr |
Indicates an error condition if one of step values for floating-point images are not divisible by 4. |