F_VN_WarpPerspective

F_VN_WarpPerspective 1:

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:

FUNCTION F_VN_WarpPerspective : HRESULT
VAR_INPUT
    ipSrcImage            : ITcVnImage;
    ipDestImage           : Reference To ITcVnImage;
END_VAR
VAR_IN_OUT
    aTransformationMatrix : TcVnMatrix3x3_LREAL;
END_VAR
VAR_INPUT
    hrPrev                : HRESULT;
END_VAR

F_VN_WarpPerspective 2: Inputs

Name

Type

Description

ipSrcImage

ITcVnImage

Source image

ipDestImage

Reference To ITcVnImage

Destination image (An appropriate image will be created if required.)

hrPrev

HRESULT

HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)

F_VN_WarpPerspective 3: In/Outputs

Name

Type

Description

aTransformationMatrix

TcVnMatrix3x3_LREAL

Perspective transformation matrix

F_VN_WarpPerspective 4: Return value

HRESULT

Required License

TC3 Vision Base

System Requirements

Development environment

Target platform

PLC libraries to include

TwinCAT V3.1. 4024.44 or later

PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU

Tc3_Vision