FilterMedianCross
Filters an image using a cross median filter.
Syntax
IppStatus ippiFilterMedianCross_<mod>(const Ipp<datatype>*
pSrc
, int
srcStep
, Ipp<datatype>*
pDst
, int
dstStep
, IppiSize
dstRoiSize
, IppiMaskSize
mask
);
Supported values for
mod
:8u_C1R | 16u_C1R | 16s_C1R |
8u_C3R | 16u_C3R | 16s_C3R |
8u_AC4R | 16u_AC4R | 16s_AC4R |
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 starts of consecutive lines in the source image.
- pDst
- Pointer to the destination image ROI.
- dstStep
- Distance in bytes between starts of consecutive lines in the destination image.
- dstRoiSize
- Size of the source and destination ROI in pixels.
- mask
- Predefined mask of theIppiMaskSizetype.
Description
This function operates with ROI (see Regions of Interest in Intel IPP).
This function sets each pixel in the output buffer as the median value of all the input pixel values taken in the neighborhood of the processed pixel. The neighborhood is determined by the square mask of the predefined size, which can be either
ippMskSize3x3
or ippMskSize5x5
(see Table “Median Filter Mask, Neighborhood, and Anchor Cell”
). The function operates on the assumption that the pixels outside the source image ROI exist along the distance equal to half of the mask size. It means that the application program should provide appropriate values for the pSrc
and dstRoiSize
arguments, or define additional border pixels (see Borders in Neighborhood Operations). The size of the source image ROI is equal to the size of the destination image ROI dstRoiSize
.Return Values
- ippStsNoErr
- Indicates no error. Any other value indicates an error or a warning.
- ippStsNullPtrErr
- Indicates an error ifpSrcorpDstisNULL.
- ippStsSizeErr
- Indicates an error ifdstRoiSizehas a field with a zero or negative value.
- ippStsStepErr
- Indicates an error ifsrcStepordstStephas a zero or negative value.
- ippStsMaskSizeErr
- Indicates an error ifmaskhas an illegal value.