Visible to Intel only — GUID: GUID-7E34944C-8230-426C-A7C8-6042F7A571B5
Visible to Intel only — GUID: GUID-7E34944C-8230-426C-A7C8-6042F7A571B5
MorphGradient
Calculates morphological gradient of an image.
Syntax
IppStatus ippiMorphGradient_16u_C1R_L(const Ipp16u* pSrc, IppSizeL srcStep, Ipp16u* pDst, IppSizeL dstStep, IppiSizeL roiSize, IppiBorderType borderType, const Ipp16u borderValue[1], const IppiMorphAdvStateL* pMorphSpec, Ipp8u* pBuffer);
IppStatus ippiMorphGradient_16s_C1R_L(const Ipp16s* pSrc, IppSizeL srcStep, Ipp16s* pDst, IppSizeL dstStep, IppiSizeL roiSize, IppiBorderType borderType, const Ipp16s borderValue[1], const IppiMorphAdvStateL* pMorphSpec, Ipp8u* pBuffer);
IppStatus ippiMorphGradient_1u_C1R_L(const Ipp8u* pSrc, IppSizeL srcStep, int srcBitOffset, Ipp8u* pDst, IppSizeL dstStep, int dstBitOffset, IppiSizeL roiSize, IppiBorderType borderType, const Ipp8u borderValue[1], const IppiMorphAdvStateL* pMorphSpec, Ipp8u* pBuffer);
IppStatus ippiMorphGradient_8u_C1R_L(const Ipp8u* pSrc, IppSizeL srcStep, Ipp8u* pDst, IppSizeL dstStep, IppiSizeL roiSize, IppiBorderType borderType, const Ipp8u borderValue[1], const IppiMorphAdvStateL* pMorphSpec, Ipp8u* pBuffer);
IppStatus ippiMorphGradient_8u_C3R_L(const Ipp8u* pSrc, IppSizeL srcStep, Ipp8u* pDst, IppSizeL dstStep, IppiSizeL roiSize, IppiBorderType borderType, const Ipp8u borderValue[3], const IppiMorphAdvStateL* pMorphSpec, Ipp8u* pBuffer);
IppStatus ippiMorphGradient_8u_C4R_L(const Ipp8u* pSrc, IppSizeL srcStep, Ipp8u* pDst, IppSizeL dstStep, IppiSizeL roiSize, IppiBorderType borderType, const Ipp8u borderValue[4], const IppiMorphAdvStateL* pMorphSpec, Ipp8u* pBuffer);
IppStatus ippiMorphGradient_32f_C1R_L(const Ipp32f* pSrc, IppSizeL srcStep, Ipp32f* pDst, IppSizeL dstStep, IppiSizeL roiSize, IppiBorderType borderType, const Ipp32f borderValue[1], const IppiMorphAdvStateL* pMorphSpec, Ipp8u* pBuffer);
IppStatus ippiMorphGradient_32f_C3R_L(const Ipp32f* pSrc, IppSizeL srcStep, Ipp32f* pDst, IppSizeL dstStep, IppiSizeL roiSize, IppiBorderType borderType, const Ipp32f borderValue[3], const IppiMorphAdvStateL* pMorphSpec, Ipp8u* pBuffer);
IppStatus ippiMorphGradient_32f_C4R_L(const Ipp32f* pSrc, IppSizeL srcStep, Ipp32f* pDst, IppSizeL dstStep, IppiSizeL roiSize, IppiBorderType borderType, const Ipp32f borderValue[4], const IppiMorphAdvStateL* pMorphSpec, Ipp8u* pBuffer);
Include Files
ippcv_l.h
Domain Dependencies
Headers: ippcore.h, ippvm.h, ipps.h, ippi.h
Libraries: ippcore.lib, ippvm.lib, ipps.lib, ippi.lib
Parameters
pSrc |
Pointer to the source image ROI. | ||||||||||
srcStep |
Distance, in bytes, between the starting points of consecutive lines in the source image. | ||||||||||
srcBitOffset |
Offset, in bits, from the first byte of the source image row. | ||||||||||
pDst |
Pointer to the destination image ROI. | ||||||||||
dstStep |
Distance, in bytes, between the starting points of consecutive lines in the destination image. | ||||||||||
dstBitOffset |
Offset, in bits, from the first byte of the destination image row. | ||||||||||
roiSize |
Size of the source and destination image ROI. | ||||||||||
borderType |
Type of border. Possible values are:
Mixed borders are also supported. They can be obtained by the bitwise operation OR between any of the ippBorderRepl, ippBorderConst, ippBorderDefault, or ippBorderMirror values and the ippBorderInMemTop, ippBorderInMemBottom, ippBorderInMemLeft, ippBorderInMemRight modifiers. |
||||||||||
borderValue, borderValue[3], borderValue[4] |
Constant value to assign to pixels of the constant border. This parameter is applicable only to the ippBorderConst border type. | ||||||||||
pMorphSpec |
Pointer to the morphology specification structure. | ||||||||||
pBuffer |
Pointer to the external buffer. |
Description
Before using this function, you need to initialize the morphology specification structure using the ippiMorphInit function.
This function calculates a morphological gradient of a rectangular ROI area inside a one-, three-, or four-channel 2D image using a specified in the advanced morphology specification structure mask and anchor cell.
The result is equivalent to the subtraction of an opened source image from a closed source image.
The function can only process a ROI that does not exceed the maximum width and height roiSize specified by the initialization functions.
Return Values
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error when one of the specified pointers is NULL. |
ippStsSizeErr |
Indicates an error condition when:
|
ippStsStepErr |
Indicates an error condition when srcStep or dstStep is less than roiSize.width * <pixelSize>. |
ippStsNotEvenStepErr |
Indicates an error when one of the step values is not a multiple of an element size. |
ippStsBadArgErr |
Indicates an error when borderType has an illegal value. |