InvertImageColor

Invert the color of an image. 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:

HRESULT InvertImageColor(
    HRESULT      hrPrev,
    ITcVnImage*  ipSrcImage,
    ITcVnImage*& ipDestImage,
    double       fMaxValue = -1
)

Parameters

Name

Type

Default

Description

hrPrev

HRESULT

 

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

ipSrcImage

ITcVnImage*

 

Source image

ipDestImage

ITcVnImage*&

 

Destination image (An appropriate image will be created if required.)

fMaxValue

double

-1

Maximum pixel value (e.g. if a 16 bit image contains 12 bit values). -1 means the default values are used.

InvertImageColor 1: Return value

HRESULT

Required License

TC3 Vision Base

System Requirements

Development environment

Target platform

PLC libraries to include

TwinCAT V3.1. 4024.44 or later

PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU

Tc3_Vision