Performs gray-kernel erosion of an image.
Syntax
IppStatus ippiGrayErodeBorder_8u_C1R(const Ipp8u* pSrc, int srcStep, Ipp8u* pDst, int dstStep, IppiSize roiSize, IppiBorderType borderType, IppiMorphGrayState_8u* pState);
IppStatus ippiGrayErodeBorder_32f_C1R(const Ipp32f* pSrc, int srcStep, Ipp32f* pDst, int dstStep, IppiSize roiSize, IppiBorderType borderType, IppiMorphGrayState_32f* pState);
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. |
roiSize |
Size of the source and destination image ROI. |
borderType |
Type of border; the possible value is ippBorderRepl, which means that a replicated border is used. |
pState |
Pointer to the morphology state structure. |
Description
The function ippiGrayErodeBorder is declared in the ippcv.h It operates with ROI (see Regions of Interest in Intel IPP).
This function performs gray-kernel erosion of a rectangular ROI area inside a one-channel 2D image using a specified in the gray-kernel morphology state structure pState mask and the anchor cell. This structure must be initialized by the functions MorphGrayInitAlloc or MorphGrayInit beforehand.
Warning
The structure can be used to process images with ROI that does not exceed the specified maximum width and height roiSize.
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 a zero or negative value, or if one of ROI width or height is greater than corresponding size of ROI passed to the initialization functions. |
ippStsStepErr |
Indicates an error condition if srcStep or dstStep is less than roiSize.width * <pixelSize>. |
ippStsNotEvenStepErr |
Indicates an error condition if one of the step values is not divisible by 4 for floating-point images. |
ippStsBorderErr |
Indicates an error condition if borderType has an illegal value. |