WarpPerspective (Exp)

Apply a perspective transformation to an image.
Can use available TwinCAT Job Tasks for executing parallel code regions.
Can return partial results when canceled by Watchdog.

Syntax

Definition:

HRESULT WarpPerspective(
    HRESULT                        hrPrev,
    ITcVnImage*                    ipSrcImage,
    ITcVnImage*&                   ipDestImage,
    TcVnMatrix3x3_LREAL&           aTransformationMatrix,
    ULONG                          nDestWidth,
    ULONG                          nDestHeight,
    ETcVnInterpolationType         eInterpolationType,
    bool                           bWarpInverse,
    ETcVnBorderInterpolationMethod eBorderInterpolation,
    double                         fBorderValue
)

Parameters

Name	Type	Description
hrPrev	HRESULT	HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)
ipSrcImage	ITcVnImage*	Source image
ipDestImage	ITcVnImage*&	Destination image (An appropriate image will be created if required.)
aTransformationMatrix	TcVnMatrix3x3_LREAL&	Perspective transformation matrix
nDestWidth	ULONG	Width of the destination image
nDestHeight	ULONG	Height of the destination image
eInterpolationType	ETcVnInterpolationType	Interpolation method
bWarpInverse	bool	Handle aTransformationMatrix as the inverse transformation
eBorderInterpolation	ETcVnBorderInterpolationMethod	Border interpolation method (ISOLATED not supported)
fBorderValue	double	Border value, if CONSTANT is used

Return value

HRESULT

Required License

TC3 Vision Base

System Requirements

Development environment	Target platform	PLC libraries to include
TwinCAT V3.1.4024.54 or later	PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU	Tc3_Vision