Calculates size of temporary buffer for the function ippiEigenValsVecs.
Syntax
IppStatus ippiEigenValsVecsGetBufferSize_32f_C1R(IppiSize roiSize,int apertureSize, int avgWindow, int* pBufferSize);
IppStatus ippiEigenValsVecsGetBufferSize_8u32f_C1R(IppiSize roiSize, int apertureSize, int avgWindow, int* pBufferSize);
Parameters
- roiSize
- Size of the source image ROI in pixels.
- apertureSize
- Size (pixels) of the derivative operator used by the function, possible values are 3 or 5.
- avgWindow
- Size of the blurring window in pixels, possible values are 3 or 5.
- pBufSize
- Pointer to the variable that returns the size of the temporary buffer.
Description
The function ippiEigenValsVecsGetBufferSize is declared in the ippcv.h file. It operates with ROI (see Regions of Interest in Intel IPP).
This function calculates the size of a temporary buffer to be used by the function ippiEigenValsVecs.
Caution
The parameters apertureSize and avgWindow must be the same for both functions ippiEigenValsVecsGetBufferSize and ippiEigenValsVecs.
Example “Using the function ippiEigenValsVecs” shows how to use the function ippiEigenValsVecsGetBufferSizee.
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 roiWidth has zero or negative value, or if apertureSize or avgWindow has an illegal value. |