Visible to Intel only — GUID: GUID-99CF9EDF-CF24-438D-951F-CF85F460FEC9
Visible to Intel only — GUID: GUID-99CF9EDF-CF24-438D-951F-CF85F460FEC9
WarpPerspectiveGetSize
Computes the size of the specification structure and the size of the external work buffer for the warp perspective transform.
Syntax
IppStatus ippiWarpPerspectiveGetSize(IppiSize srcSize, IppiRect srcRoi, IppiSize dstSize, IppDataType dataType, const double coeffs[3][3], IppiInterpolationType interpolation, IppiWarpDirection direction, IppiBorderType borderType, int* pSpecSize, int* pInitBufSize);
Include Files
ippi.h
Domain Dependencies
Headers: ippcore.h, ippvm.h, ipps.h
Libraries: ippcore.lib, ippvm.lib, ipps.lib
Parameters
srcSize |
Size of the source image, in pixels. | ||||||||
srcRoi |
Source image ROI (of the IppiRect type). | ||||||||
dstSize |
Size of the destination image, in pixels. | ||||||||
dataType |
Data type of the source and destination images. Supported values: ipp8u, ipp16u, ipp16s, and ipp32f. | ||||||||
coeffs |
Coefficients for the perspective transform. | ||||||||
interpolation |
Interpolation method. Supported values: ippNearest, ippLinear, andippCubic. | ||||||||
direction |
Transformation direction. Supported values:
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borderType |
Type of border. Supported values:
Mixed borders are also supported. They can be obtained by the bitwise operation OR between ippBorderTransp and the ippBorderInMemTop, ippBorderInMemBottom, ippBorderInMemLeft, ippBorderInMemRight values. |
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pSpecSize |
Pointer to the size, in bytes, of the specification structure. | ||||||||
pInitBufSize |
Pointer to the size, in bytes, of the temporary buffer. |
Description
This function computes the size of the specification structure and the external work buffer for the following functions, depending on the interpolation parameter: ippiWarpPerspectiveNearestInit, ippiWarpPerspectiveLinearInit, or ippiWarpPerspectiveCubicInit.
You can set the value of the srcRoi parameter to ippRectInfinite, which means that the ROI is not specified.
Return Values
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error when one of the specified pointers is NULL. |
ippStsSizeErr |
Indicates an error in the following cases:
|
ippStsRectErr |
Indicates an error in the following cases, if the source image ROI is not ippRectInfinite:
|
ippStsDataTypeErr |
Indicates an error when dataType has an illegal value. |
ippStsWarpDirectionErr |
Indicates an error when direction has an illegal value. |
ippStsInterpolationErr |
Indicates an error when interpolation has an illegal value. |
ippStsCoeffErr |
Indicates an error when perspective transformation is singular. |
ippStsWrongIntersectQuad |
Indicates a warning that no operation is performed if the transformed source image extended with borders has no intersection with the destination image. |
ippStsBorderErr |
Indicates an error when borderType has an illegal value. |
ippStsSizeWrn |
Indicates a warning when srcRoi exceeds the source image. |