Visible to Intel only — GUID: GUID-F8380450-1397-43A8-8A9E-C77CC04E7B99
Visible to Intel only — GUID: GUID-F8380450-1397-43A8-8A9E-C77CC04E7B99
PyramidLayerDownGetSize
Computes the size of the structure for creating a lower pyramid layer and the size of the temporary buffer.
Syntax
IppStatus ippiPyramidLayerDownGetSize_8u_C1R(IppiSize srcRoi, Ipp32f rate, int kerSize, int* pStateSize, int* pBufSize);
IppStatus ippiPyramidLayerDownGetSize_8u_C3R(IppiSize srcRoi, Ipp32f rate, int kerSize, int* pStateSize, int* pBufSize);
IppStatus ippiPyramidLayerDownGetSize_16u_C1R(IppiSize srcRoi, Ipp32f rate, int kerSize, int* pStateSize, int* pBufSize);
IppStatus ippiPyramidLayerDownGetSize_16u_C3R(IppiSize srcRoi, Ipp32f rate, int kerSize, int* pStateSize, int* pBufSize);
IppStatus ippiPyramidLayerDownGetSize_32f_C1R(IppiSize srcRoi, Ipp32f rate, int kerSize, int* pStateSize, int* pBufSize);
IppStatus ippiPyramidLayerDownGetSize_32f_C3R(IppiSize srcRoi, Ipp32f rate, int kerSize, int* pStateSize, int* pBufSize);
Platform-aware functions
IppStatus ippiPyramidLayerDownGetSize_32f_C1R_L(IppiSizeL srcRoi, Ipp32f rate, int kerSize, IppSizeL* pStateSize, IppSizeL* pBufSize);
Include Files
ippcv.h
Flavors with the _L suffix: ippcv_l.h
Domain Dependencies
Headers: ippcore.h, ippvm.h, ipps.h, ippi.h
Libraries: ippcore.lib, ippvm.lib, ipps.lib, ippi.lib
Parameters
- srcRoi
- Size of the source image ROI.
- rate
- Ratio between neighbouring levels (1 < rate≤ 10).
- kerSize
- Size of the kernel.
- pStateSize
- Pointer to the size of the pyramid layer state structure.
- pBufSize
- Pointer to the size of the external work buffer.
Description
This function operates with ROI (see Regions of Interest in Intel IPP).
This function computes the size of the pState structure to build a lower pyramid layer and the size of the temporary buffer, in bytes. This structure is used by the ippiPyramidLayerDown function and can be applied to process images with size not greater than srcRoi. For an example on how to use this function, refer to the example provided with the ippiPyramidLayerDown function description.
Return Values
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error when at least one of the pointers is NULL. |
ippStsSizeErr |
Indicates an error when the width or height of images is less than, or equal to zero. |
ippStsBadArgErr |
Indicates an error when kerSize is even, or equal to or less than 0; or when rate is out of the range. |