ResizeFilterInit

Initializes the state structure for the resize filter.

Syntax

IppStatus ippiResizeFilterInit_8u_C1R(IppiResizeFilterState* pState, IppiSize srcRoiSize, IppiSize dstRoiSize, IppiResizeFilterType filter);

Parameters

pState	Pointer to the state structure for resize filter.
srcRoiSize	Size of the source image ROI in pixels.
dstRoiSize	Size of the destination image ROI in pixels.
filter	Type of filter used in resizing; possible values: ippResizeFilterHann, ippResizeFilterLanczos

Description

The function ippiResizeFilterInit is declared in the ippi.h file. It operates with ROI (see ROI Processing in Geometric Transforms).

This function initializes the state structure pState for resizing filter used by the function ippiResizeFilter. The size of the structure must be computed by the function ippiResizeFilterGetSize beforehand. The type of filter is specified by the parameter filter and it must be the same as in the function ippiResizeFilterGetSize.

Return Values

ippStsNoErr	Indicates no error. Any other value indicates an error.
ippStsNullPtrErr	Indicates an error condition if the pState pointer is NULL.
ippStsSizeErr	Indicates an error condition if srcRoiSize or dstRoiSize has a field with zero or negative value.
ippStsNotSupportedModeErr	Indicates an error condition if filter has an invalid value.