DoubleThreshold
Apply a double threshold (also called hysteresis threshold) using morphological reconstruction.
Can use available TwinCAT Job Tasks for executing parallel code regions.
Syntax
Definition:
HRESULT DoubleThreshold(
HRESULT hrPrev,
ITcVnImage* ipSrcImage,
ITcVnImage*& ipDestImage,
double fLowThreshold,
double fHighThreshold,
double fMaxValue
)
Parameters
|
Name |
Type |
Description |
|---|---|---|
|
hrPrev |
HRESULT indicating the result of previous operations (If SUCCEEDED(hrPrev) equals false, no operation is executed.) | |
|
ipSrcImage |
Source image (USINT, UINT, INT, REAL, or LREAL, 1 channel) | |
|
ipDestImage |
Destination image (An appropriate destination image will be created if required.) | |
|
fLowThreshold |
double |
Low threshold determinining the shape of found regions |
|
fHighThreshold |
double |
High threshold selecting found regions (Each region must at least contain a single pixel if the high threshold is applied.) |
|
fMaxValue |
double |
Maximum pixel value |
Return valueRequired 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 |