Sets or retrieves the maximum acceptable value for a false rejection rate.
BiometricScanner objects
Function availability
This function is not used by the HPBiometricScanner object
implementation of the BiometricScanner base class.
Integer scanner.FRRRequested ( {maxFRR } )
Argument |
Description |
|---|---|
scanner |
The scanner object associated with the device you want to use to complete a scan |
maxFRR |
Integer value that you use to set the maximum acceptable FRR |
Integer. For the syntax without the maxFRR argument, returns the current value for the maximum acceptable FRR.
For the syntax with the maxFRR argument, returns 1 for success or a negative values if an error occurs.
Together with the maximum false acceptance rate, setting the maximum FRR is how you set threshholds for returning scores in the verification stage of a scan operation. If you assign -1 as the value for the maxFRR argument, the manufacturer’s default setting is used for the maximum FRR value.
The following example retrieves the maximum FRR to a local variable:
li_rtn = l_bioscanner.FRRRequested( )
