F_VN_MaxPixelValueExp

F_VN_MaxPixelValueExp 1:

Finds the maximum pixel value in an image (1 - 4 channels supported). (expert function)

Syntax

Definition:

FUNCTION F_VN_MaxPixelValueExp : HRESULT
VAR_INPUT
    ipImage              : ITcVnImage;
END_VAR
VAR_IN_OUT
    aMaxValue            : TcVnVector4_LREAL;
    aPosition            : TcVnPoint2_DINT;
END_VAR
VAR_INPUT
    ipMask               : ITcVnImage;
    eVectorCompareMethod : ETcVnVectorCompareMethod;
    hrPrev               : HRESULT;
END_VAR

F_VN_MaxPixelValueExp 2: Inputs

Name

Type

Description

ipImage

ITcVnImage

Source image

ipMask

ITcVnImage

Optional mask to specify which pixel positions are considered (USINT, set parameter to 0 if not required)

eVectorCompareMethod

ETcVnVectorCompareMethod

Select a vector compare method for multi-channel images

hrPrev

HRESULT

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

F_VN_MaxPixelValueExp 3: In/Outputs

Name

Type

Description

aMaxValue

TcVnVector4_LREAL

Returns the maximum pixel value

aPosition

TcVnPoint2_DINT

Returns the first found position of aMaxValue (not supported for multi-channel images with ELEMENTWISE)

F_VN_MaxPixelValueExp 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