F_VN_InvertImageColorExp

F_VN_InvertImageColorExp 1:

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

F_VN_InvertImageColorExp 2: Inputs

Name

Type

Description

ipSrcImage

ITcVnImage

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

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

F_VN_InvertImageColorExp 3: 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