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 V3.1.4024.59 or later

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

Tc3_Vision