AutoBThreshold Method
Syntax
CWIMAQVision.AutoBThreshold SourceImage, Method, LookupTable, ThresholdValue
Return Type
Returns 0 if no error; returns a negative number to indicate an error.
Purpose
Obsolete—Use AutoThreshold2 instead. The Automatic Binary Threshold applies a threshold to an image that initially possesses 256 gray levels that divide the image into two classes. A statistical calculation is done to determine the optimal threshold.
Remarks
Use this method with U8 images.
Parameters
SourceImage As CWIMAQImage
The image to process.
Method As CWIMAQAutoThresholdMethods
The threshold method to use.
LookupTable As Variant
Returns a lookup table containing 256 elements encoded in 0 and 1. If the threshold value is 160, the values between 0 and 159 become zero and the values between 160 and 255 become 1. This array can be directly used by CWIMAQVision.UserLookup.
ThresholdValue As Long
Returns the computed threshold value.