SumWindowColumn

Sums pixel values in the column mask applied to the image.

Syntax

IppStatus ippiSumWindowColumn_<mod>(const Ipp<srcDatatype>* pSrc, int srcStep, Ipp32f* pDst, int dstStep, IppiSize dstRoiSize, int maskSize, int yAnchor);

Supported values for mod:

8u32f_C1R	16u32f_C1R	16s32f_C1R
8u32f_C3R	16u32f_C3R	16s32f_C3R
8u32f_C4R	16u32f_C4R	16s32f_C4R

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 destination ROI in pixels.
maskSize	Size of the vertical column mask in pixels.
yAnchor	Anchor cell specifying the column mask alignment with respect to the position of the input pixel.

Description

The function ippiSumWindowColumn is declared in the ippi.h file. It operates with ROI (see Regions of Interest in Intel IPP).

This function sets each pixel in the destination image ROI pDst as the sum of all the source image pixels in the vertical column mask of size maskSize with the anchor cell yAnchor at the corresponding pixel in the source image ROI pSrc. To ensure valid operation when image boundary pixels are processed, the application must correctly define additional border pixels (see Borders).

Return Values

ippStsNoErr	Indicates no error. Any other value indicates an error or a warning.
ippStsNullPtrErr	Indicates an error condition if pSrc, pDst is NULL.
ippStsSizeErr	Indicates an error condition if dstRoiSize has a field with a zero or negative value.
ippStsMaskSizeErr	Indicates an error condition if maskSize has a field with a zero or negative value.
ippStsAnchorErr	Indicates an error condition if xAnchor is outside the mask size.
ippStsMemAllocErr	Indicates a memory allocation error.