HarrisCornerGetBufferSize

Calculates the size of the temporary buffer for the ippiHarrisCorner function.

Syntax

IppStatus ippiHarrisCornerGetBufferSize(IppiSize roiSize, IppiMaskSize filterMask, Ipp32u avgWndSize, IppDataType dataType, int numChannels, int* pBufferSize);

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

roiSize: Size of the source and destination image ROI in pixels.
filterMask: Size of the derivative filter aperture. Possible values are ippMskSize3x3 and ippMskSize5x5.
avgWndSize: Linear size of a neighborhood block for averaging.
dataType: Data type of the source image. Possible values are ipp8u and ipp32f.
numChannels: Number of channels in the images. Possible value is 1.
pBufferSize: Pointer to the size (in bytes) of the external work buffer.

Description

This function calculates the size of the temporary buffer needed for the HarrisCorner function.

Return Values

ippStsNoErr

Indicates no error. Any other value indicates an error or a warning.

ippStsNullPtrErr

Indicates an error when pBufferSize is NULL.

ippStsSizeErr

Indicates an error in the following cases:

when roiSize is less than, or equal to zero
when avgWndSize is equal to zero

ippStsMaskSizeErr

Indicates an error when filterMask has an illegal value.

ippStsDataTypeErr

Indicates an error when dataType has an illegal value.

ippStsNumChannelsErr

Indicates an error when numChannels has an illegal value.