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