AbsDiff
Calculates absolute difference between two images.
Syntax
IppStatus ippiAbsDiff_<mod>
(
const Ipp<datatype>*
pSrc1
,
int
src1Step
,
const Ipp<datatype>*
pSrc2
,
int
src2Step
,
Ipp<datatype>*
pDst
,
int
dstStep
,
IppiSize
roiSize
);
Supported values for
mod
:
8u_C1R |
16u_C1R |
32f_C1R |
8u_C3R |
Include Files
ippcv.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
,
ippi.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
,
ippi.lib
Parameters
- pSrc1
- Pointer to the first source image.
- src1Step
- Distance in bytes between starts of consecutive lines in the first source image.
- pSrc2
- Pointer to second source image.
- src2Step
- Distance in bytes between starts of consecutive lines in the second source image.
- pDst
- Pointer to the destination image.
- dstStep
- Distance in bytes between starts of consecutive lines in the destination image.
- roiSize
- Size of the image ROI in pixels.
Description
This function operates with ROI (see
Regions of Interest in Intel IPP
).
This function calculates the absolute pixel-wise difference between two images by the formula:
pDst
(x,y) = abs(
pSrc1
(x,y) -
pSrc2
(x,y))
Return Values
- ippStsNoErr
- Indicates no error.
- ippStsNullPtrErr
- Indicates an error condition if one of the specified pointers isNULL.
- ippStsSizeErr
- Indicates an error condition ifroiSizehas a field with zero or negative value.
- ippStsStepErr
- Indicates an error whensrc1Step,src2StepordstStepis less thanroiSize.width * <pixelSize>.
- ippStsNotEvenStepErr
- Indicates an error condition if one of step values for floating-point images cannot be divided by 4.