F_VN_CountNonZeroPixels

F_VN_CountNonZeroPixels 1:

Counts the non-zero pixels in a single-channel image (e.g. useful to analyze threshold results).

Syntax

Definition:

FUNCTION F_VN_CountNonZeroPixels : HRESULT
VAR_INPUT
    ipSrcImage : ITcVnImage;
END_VAR
VAR_IN_OUT
    nNonZero   : ULINT;
END_VAR
VAR_INPUT
    hrPrev     : HRESULT;
END_VAR

F_VN_CountNonZeroPixels 2: Inputs

Name

Type

Description

ipSrcImage

ITcVnImage

Source image (1 channel)

hrPrev

HRESULT

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

F_VN_CountNonZeroPixels 3: In/Outputs

Name

Type

Description

nNonZero

ULINT

Returns the number of non-zero pixels in ipSrcImage

F_VN_CountNonZeroPixels 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