Sets the value for threshold filtering operations.
Syntax
HRESULT retVal = object.SetThreshold(newVal);
Parameters
- newVal [in] 
 Type: float- Threshold value. This number can range from 0.0 and 1.0. 
Remarks
For the threshold filtering adjustment, each sample color channel whose value is below newVal*255 is set to 0. Each color channel with a value equal to or above that threshold is set to 255.