ResizeGetSrcOffset

Computes the offset of the source image for resizing by tile processing.

Syntax

Single precision

IppStatus ippiResizeGetSrcOffset_<mod>(const IppiResizeSpec_32f* pSpec, IppiPoint dstOffset, IppiPoint* srcOffset);

Supported values for mod:

16u

16s

32f

Double precision

IppStatus ippiResizeGetSrcOffset_64f(const IppiResizeSpec_64f* pSpec, IppiPoint dstOffset, IppiPoint* srcOffset);

Processing images with platform-aware functions

IppStatus ippiResizeGetSrcOffset_L(const IppiResizeSpec* pSpec, IppiPointL dstOffset, IppiPointL* srcOffset);

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.
dstOffset	Offset of the tiled destination image with respect to the destination image origin.
srcOffset	Offset of the source image.

Description

This function computes the offset of the processed source image ROI using the offset of the processed destination image ROI for the corresponding resize transform by tile processing. The pSpec parameter defines the resize algorithm parameters. Prior to using the ippiResizeGetSrcOffset function, you need to initialize the pSpec parameter by calling one of the following functions: ippiResizeNearestInit, ippiResizeLinearInit, ippiResizeCubicInit, ippiResizeLanczosInit, or ippiResizeSuperInit.

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.