Visible to Intel only — GUID: GUID-C995497B-9177-4E8F-BF2A-C31F716512F8
iwiWarpAffine_InitAlloc
Syntax
IW_DECL(IppStatus) iwiWarpAffine_InitAlloc(
IwiWarpAffineSpec **pSpec,
IwiSize srcSize,
IwiSize dstSize,
IppDataType dataType,
int channels,
const double coeffs[2][3],
IwTransDirection direction,
IppiInterpolationType interpolation,
const IwiWarpAffineParams *pAuxParams,
IwiBorderType border,
const Ipp64f *pBorderVal
);
Parameters
pSpec |
Double pointer to the WarpAffine specification structure to be initialized. |
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srcSize |
Size of the source image, in pixels. |
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dstSize |
Size of the destination image, in pixels. |
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dataType |
Image pixel type. |
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channels |
Number of image channels. |
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coeffs[2][3] |
Coefficients for the affine transform. |
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direction |
Transformation direction. |
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interpolation |
Interpolation method. Supported values: ippNearest, ippLinear, ippCubic. |
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pAuxParams |
Pointer to the WarpAffine optional parameters structures. If NULL, the function uses default parameters. |
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border |
Extrapolation algorithm for out of image pixels processing. Supported values:
|
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pBorderVal |
Pointer to an array of values to assign to pixels of the constant border, one element of the array for each channel of the image. This parameter is applicable only to the ippBorderConst border type and can be NULL for other border types. |
Description
This function allocates memory and initializes the internal data structure for the WarpAffine operation.
Return Values
ippStsNoErr |
No errors. |
ippStsWarpDirectionErr |
The direction value is illegal. |
ippStsCoeffErr |
Affine transformation is singular. |
ippStsInterpolationErr |
The interpolation value is illegal. |
ippStsDataTypeErr |
The dataType value is illegal. |
ippStsNumChannelsErr |
The channels value is illegal. |
ippStsBorderErr |
The border value is illegal. |
ippStsNotSupportedModeErr |
Specified combination of parameters' values is not supported. |
ippStsNoMemErr |
Failed to allocate memory. |
ippStsSizeErr |
Values of the srcSize and/or dstSize fields are illegal. |
ippStsNullPtrErr |
The pSpec pointer is NULL. |
ippStsNoOperation |
Warning: width and/or height of the image is equal to zero. |
ippStsWrongIntersectQuad |
Warning: transformed source image has no intersection with the destination image. |