FindRois

Extracts rectangular regions of interest (ROIs) from an image by partitioning it into tiles using the selected method and parameters.

Syntax

Definition:

HRESULT FindRois(
    HRESULT             hrPrev,
    ITcVnImage*         ipSrcImage,
    ITcVnContainer*&    ipRois,
    ETcVnFindRoisMethod eFindRoisMethod,
    TcVnParamsFindRois& stParams
)

Parameters

Name	Type	Description
hrPrev	HRESULT	HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.)
ipSrcImage	ITcVnImage*	Source image (1 channel, non-negative values).
ipRois	ITcVnContainer*&	Returns the ROIs (ContainerType_Vector_TcVnRectangle_DINT; Non-zero interface pointers are reused.)
eFindRoisMethod	ETcVnFindRoisMethod	Method to create ROIs
stParams	TcVnParamsFindRois&	Parameters for extracting ROIs

Return value

HRESULT

Required License

TC3 Vision Base

System Requirements

Development environment	Target platform	PLC libraries to include
TwinCAT V3.1.4026 or later	PC or CX (x64) with min. PL50, e.g. Intel 4-core Atom CPU	Tc3_Vision