Compare
Compares pixel values of two images using a specified
compare operation.
Syntax
IppStatus ippiCompare_<mod>
(
const Ipp<datatype>*
pSrc1
,
int
src1Step
,
const Ipp<datatype>*
pSrc2
,
int
src2Step
,
Ipp8u*
pDst
,
int
dstStep
,
IppiSize
roiSize
,
IppCmpOp
ippCmpOp
);
Supported values for
mod
:8u_C1R | 16u_C1R | 16s_C1R | 32f_C1R |
8u_C3R | 16u_C3R | 16s_C3R | 32f_C3R |
8u_C4R | 16u_C4R | 16s_C4R | 32f_C4R |
IppStatus ippiCompare_<mod>
(
const Ipp<datatype>*
pSrc1
,
int
src1Step
,
const Ipp<datatype>*
pSrc2
,
int
src2Step
,
Ipp8u*
pDst
,
int
dstStep
,
IppiSize
roiSize
,
IppCmpOp
ippCmpOp
);
Supported values for
mod
:8u_AC4R | 16u_AC4R | 16s_AC4R | 32f_AC4R |
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 ROIs.
- src1Step,src2Step
- Distances in bytes between starts of consecutive lines in the source images.
- pDst
- Pointer to the destination image ROI.
- dstStep
- Distance in bytes between starts of consecutive lines in the destination image.
- roiSize
- Size of the source and destination ROI in pixels.
- ippCmpOp
- Compare operation to be used for comparing the pixel values.
Description
This function operates with ROI (see Regions of Interest in Intel
IPP).
This function compares the corresponding pixels of ROI in two
source images
pSrc1
,
pSrc2
using the
ippCmpOp
compare
operation, and writes the results to a one-channel Ipp8u
image pDst
. If the result of the compare is true, the corresponding output
pixel is set to an IPP_MAX_8U
value;
otherwise, it is set to 0.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 pointer isNULL.
- ippStsSizeErr
- Indicates an error condition ifroiSizehas a field with zero or negative value.
- ippStsStepErr
- Indicates an error condition ifsrc1Step,src2Step, ordstStephas a zero or negative value.