Intel® Integrated Performance Primitives (Intel® IPP) Developer Guide and Reference

ID 790148
Date 3/22/2024
Public

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Document Table of Contents

MorphGradientBorder

Calculates morphological gradient of an image.

IppStatus ippiMorphGradientBorder_<mod>(const Ipp<datatype>* pSrc, int srcStep, Ipp<datatype>* pDst, int dstStep, IppiSize roiSize, IppiBorderType borderType, Ipp<datatype> borderValue, const IppiMorphAdvState* pSpec, Ipp8u* pBuffer);

Supported values for mod:

8u_C1R 16u_C1R 16s_C1R 32f_C1R

IppStatus ippiMorphGradientBorder_<mod>(const Ipp<datatype>* pSrc, int srcStep, Ipp<datatype>* pDst, int dstStep, IppiSize roiSize, IppiBorderType borderType, const Ipp<datatype> borderValue[3], const IppiMorphAdvState* pSpec, Ipp8u* pBuffer);

Supported values for mod:

8u_C3R 32f_C3R

IppStatus ippiMorphGradientBorder_<mod>(const Ipp<datatype>* pSrc, int srcStep, Ipp<datatype>* pDst, int dstStep, IppiSize roiSize, IppiBorderType borderType, const Ipp<datatype> borderValue[4], const IppiMorphAdvState* pSpec, Ipp8u* pBuffer);

Supported values for mod:

8u_C4R 32f_C4R

IppStatus ippiMorphGradientBorder_8u_C1R(const Ipp8u* pSrc, int srcStep, int srcBitOffset, Ipp8u* pDst, int dstStep, int dstBitOffset, IppiSize roiSize, IppiBorderType borderType, Ipp8u borderValue, const IppiMorphAdvState* pSpec, Ipp8u* pBuffer);

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

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.

srcBitOffset

Offset, in bits, from the first byte of the source image.

dstBitOffset

Offset, in bits, from the first byte of the destination image.

pSpec

Pointer to the specification structure.

pBuffer

Pointer to the external work buffer.

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.

Description

This function operates with ROI (see Regions of Interest in Intel IPP).

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 structure must be initialized by MorphAdvInit beforehand.

The result is equivalent to the subtraction of an opened source image from a closed source image.

NOTE:

The function can process only images with ROI that does not exceed the maximum width and height roiSize specified by the initialization functions.

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.

See Also