F_VN_CheckColorRange

F_VN_CheckColorRange 1:

Check if the pixel values of an image lie in a given range. The destination image has the same size as the source image but only one channel with a pixel element size of 8 bit. Its elements are set to 255 if the corresponding pixels of the source image are in the checked range and set to 0 otherwise.

Syntax

Definition:

FUNCTION F_VN_CheckColorRange : HRESULT
VAR_INPUT
    ipSrcImage   : ITcVnImage;
    ipDestImage  : Reference To ITcVnImage;
END_VAR
VAR_IN_OUT
    aLowerBounds : TcVnVector4_LREAL;
    aUpperBounds : TcVnVector4_LREAL;
END_VAR
VAR_INPUT
    hrPrev       : HRESULT;
END_VAR

F_VN_CheckColorRange 2: Inputs

Name

Type

Description

ipSrcImage

ITcVnImage

Source image

ipDestImage

Reference To ITcVnImage

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

hrPrev

HRESULT

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

F_VN_CheckColorRange 3: In/Outputs

Name

Type

Description

aLowerBounds

TcVnVector4_LREAL

Channel-wise lower bounds (Unused channels are ignored.)

aUpperBounds

TcVnVector4_LREAL

Channel-wise upper bounds (Unused channels are ignored.)

F_VN_CheckColorRange 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