F_VN_MaxPixelValueExp
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
Inputs
Name |
Type |
Description |
---|---|---|
ipImage |
Source image | |
ipMask |
Optional mask to specify which pixel positions are considered (USINT, set parameter to 0 if not required) | |
eVectorCompareMethod |
Select a vector compare method for multi-channel images | |
hrPrev |
HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) |
In/Outputs
Name |
Type |
Description |
---|---|---|
aMaxValue |
Returns the maximum pixel value | |
aPosition |
Returns the first found position of aMaxValue (not supported for multi-channel images with ELEMENTWISE) |
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 |