F_VN_SubtractVectorFromImage

F_VN_SubtractVectorFromImage 1:

Subtract a vector (1 element for each image channel) from each image pixel using saturation arithmetics.

Syntax

Definition:

FUNCTION F_VN_SubtractVectorFromImage : HRESULT
VAR_INPUT
    ipSrcImage  : ITcVnImage;
END_VAR
VAR_IN_OUT
    aVector     : TcVnVector4_LREAL;
END_VAR
VAR_INPUT
    ipDestImage : Reference To ITcVnImage;
    hrPrev      : HRESULT;
END_VAR

F_VN_SubtractVectorFromImage 2: Inputs

Name

Type

Description

ipSrcImage

ITcVnImage

Source image

ipDestImage

Reference To ITcVnImage

Destination image (An appropriate destination 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_SubtractVectorFromImage 3: In/Outputs

Name

Type

Description

aVector

TcVnVector4_LREAL

4-element vector (1 element for each image channel. If the image has less channels, the further vector elements are ignored.)

F_VN_SubtractVectorFromImage 4: 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