F_VN_BrightBorderObjects

F_VN_BrightBorderObjects 1:

Find bright objects connected to the image border within a gray-scale single-channel image.

Syntax

Definition:

FUNCTION F_VN_BrightBorderObjects : HRESULT
VAR_INPUT
    ipSrcImage  : ITcVnImage;
    ipDestImage : Reference To ITcVnImage;
    hrPrev      : HRESULT;
END_VAR

F_VN_BrightBorderObjects 2: Inputs

Name

Type

Description

ipSrcImage

ITcVnImage

Source image (USINT, UINT, INT, REAL, or LREAL, 1 channel)

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_BrightBorderObjects 3: Return value

HRESULT

Further information

This function transfers all bright border objects in the input image to the result image.

Algorithm

All objects in the image that are brighter than the surrounding pixels are removed.

Parameter

Input image

The input image ipSrcImage may only have one channel and must have one of the following element types: USINT, UINT, INT, REAL or LREAL.

Result image

The result image ipDestImage returns the bright border objects.

Application

hr := F_VN_BrightBorderObjects(
    ipSrcImage      :=  ipImageIn,
    ipDestImage     :=  ipImageRes,
    hrPrev          :=  hr
);

Input image

Result image

F_VN_BrightBorderObjects 4:

F_VN_BrightBorderObjects 5:

Related functions

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