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 V3.1.4024.54 or later

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

Tc3_Vision