F_VN_InvertImageColorExp
Invert the color of an image. (expert function) For signed integer or negative floating point values, only the signs will be switched. If the image contains only positive floating point values, each pixel value is subtracted from the maximum available pixel value (or 1.0, whatever is higher).
Syntax
Definition:
FUNCTION F_VN_InvertImageColorExp : HRESULT
VAR_INPUT
ipSrcImage : ITcVnImage;
ipDestImage : Reference To ITcVnImage;
fMaxValue : LREAL;
hrPrev : HRESULT;
END_VAR
Inputs
|
Name |
Type |
Description |
|---|---|---|
|
ipSrcImage |
Source image | |
|
ipDestImage |
Reference To ITcVnImage |
Destination image (An appropriate image will be created if required.) |
|
fMaxValue |
LREAL |
Maximum pixel value (e.g. if a 16 bit image contains 12 bit values). -1 means the default values are used. |
|
hrPrev |
HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) |
Return valueRequired 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 |