MinPixelValue

Finds the minimum pixel value in an image (1 - 4 channels supported).

Syntax

Definition:

HRESULT MinPixelValue(
    HRESULT                  hrPrev,
    ITcVnImage*              ipImage,
    TcVnVector4_LREAL&       aMinValue,
    TcVnPoint2_DINT&         aPosition,
    ITcVnImage*              ipMask = nullptr,
    ETcVnVectorCompareMethod eVectorCompareMethod = VCM_EUCLIDEAN
)

Parameters

Name

Type

Default

Description

hrPrev

HRESULT

 

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

ipImage

ITcVnImage*

 

Source image

aMinValue

TcVnVector4_LREAL&

 

Returns the minimum pixel value

aPosition

TcVnPoint2_DINT&

 

Returns the first found position of aMinValue (not supported for multi-channel images with ELEMENTWISE)

ipMask

ITcVnImage*

nullptr

Optional mask to specify which pixel positions are considered (USINT, set parameter to 0 if not required)

eVectorCompareMethod

ETcVnVectorCompareMethod

VCM_EUCLIDEAN

Select a vector compare method for multi-channel images

MinPixelValue 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