Visible to Intel only — GUID: GUID-4C2727A6-41F4-4CE6-9198-C7B7CC38F3CF
Visible to Intel only — GUID: GUID-4C2727A6-41F4-4CE6-9198-C7B7CC38F3CF
ResizeGetSrcRoi
Computes the ROI of the source image for resizing by tile processing.
Syntax
Single precision
IppStatus ippiResizeGetSrcRoi_<mod>(const IppiResizeSpec_32f* pSpec, IppiPoint dstRoiOffset, IppiSize dstRoiSize, IppiPoint* srcRoiOffset, IppiSize* srcRoiSize);
Supported values for mod:
8u |
16u |
16s |
32f |
Double precision
IppStatus ippiResizeGetSrcRoi_64f(const IppiResizeSpec_64f* pSpec, IppiPoint dstRoiOffset, IppiSize dstRoiSize, IppiPoint* srcRoiOffset, IppiSize* srcRoiSize);
Processing images with platform-aware functions
IppStatus ippiResizeGetSrcRoi_L(const IppiResizeSpec* pSpec, IppiPointL dstRoiOffset, IppiSizeL dstRoiSize, IppiPointL* srcRoiOffset, IppiSizeL* srcRoiSize);
Include Files
ippi.h
Flavors with the _L suffix: ippi_l.h
Domain Dependencies
Headers: ippcore.h, ippvm.h, ipps.h
Libraries: ippcore.lib, ippvm.lib, ipps.lib
Parameters
pSpec |
Pointer to the spec structure for the resize filter. |
dstRoiOffset |
Offset of the tiled destination image ROI. |
dstRoiSize |
Size of the tiled destination image ROI. |
srcRoiOffset |
Offset of the source image ROI. |
srcRoiSize |
Pointer to the size of the source image ROI. |
Description
This function computes the ROI of the processed source image using the processed ROI of the destination image for the corresponding resize transform by tile processing. The pSpec parameter defines the resize algorithm parameters. Prior to using the ippiResizeGetSrcRoi function, you need to initialize the pSpec parameter by calling one of the following functions: ippiResizeNearestInit, ippiResizeLinearInit, ippiResizeCubicInit, ippiResizeLanczosInit, or ippiResizeSuperInit.
If the destination ROI size exceeds the image origin, the source ROI will be obtained for an intersection of the destination ROI and image origin.
Return Values
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error if one of the specified pointers is NULL. |
ippStsContextMatchErr |
Indicates an error if pointer to the spec structure is invalid. |
ippStsOutOfRangeErr |
Indicates an error if the destination image offset point is outside the destination image origin. |
ippStsSizeWrn |
Indicates a warning if the destination ROI exceeds the destination image origin. |