ImageAverageStdDev

Computes the (channel-wise) average pixel value and the corresponding standard deviation of an image.

Syntax

Definition:

HRESULT ImageAverageStdDev(
    HRESULT            hrPrev,
    ITcVnImage*        ipSrcImage,
    TcVnVector4_LREAL& aAverage,
    TcVnVector4_LREAL& aStdDev,
    ITcVnImage*        ipMask = nullptr
)

Parameters

Name	Type	Default	Description
hrPrev	HRESULT		HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)
ipSrcImage	ITcVnImage*		Source image (1 - 4 channels)
aAverage	TcVnVector4_LREAL&		Returns the (channel-wise) average pixel value of ipSrcImage
aStdDev	TcVnVector4_LREAL&		Returns the (channel-wise) pixel value standard deviation of ipSrcImage
ipMask	ITcVnImage*	nullptr	Mask of type USINT (1 channel)

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 PL50, e.g. Intel 4-core Atom CPU	Tc3_Vision