biometrics

Can we test Face ID in simulator?

由 只愿长相守 提交于 2019-11-27 14:57:01
Can we test biometric authentication using the simulator? The iPhone X Simulator shows a menu for Face ID enrollment, but after enabling that, what can I do? How it will recognize a face for authentication? Simulator does not recognise a face but allows you to simulate a matching and non-matching faces, if you've enabled Enrolled option from Face ID . Add following code to your view controller and try with Face-ID import LocalAuthentication class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() localAuthentication() } func localAuthentication() -> Void { let

syntax error near unexpected token `$'in\r''

由 可紊 提交于 2019-11-27 05:21:39
问题 I'm trying to compile the NIST Biometric Image Software, and I have been having trouble all day. I finally got the source checked out right, and I installed cygwin with no problems (I have used it in the past), but when I went to compile, I get this error: $ sh setup.sh </cygdrive/c/NBIS> [--without-X11] setup.sh: line 94: syntax error near unexpected token `$'in\r'' 'etup.sh: line 94: ` case $1 in Now I'm sure any advanced coder would head to the setup.sh and look for problems, but I'm not

Android fingerprint API for time attendance app [closed]

由 守給你的承諾、 提交于 2019-11-27 05:12:01
I would like to build an app which allows employees to scan fingerprint with the support of Android app. Right now most fingerprint API (Touch ID or Android Imprint) only allows login to app. Is there any 3rd party API that allows usage of API to collect fingerprint and attach to my employee record, and verify when they scan finger? Thanks. No. In fact, the Android Compatibility Definition for Android 6.0 states in the Fingerprint section (7.3.10): MUST NOT enable 3rd-party applications to distinguish between individual fingerprints. Therefore while you could write an app that uses fingerprint

What are the correct usage/parameter values for HoughCircles in OpenCV for Iris detection?

由 爷，独闯天下 提交于 2019-11-27 05:07:44
问题 I've been reading about the subject but cannot get the idea in "plain English" about the usage and parameters for HoughCircles (specially the ones after CV_HOUGH_GRADIENT ). What's an accumulator threshold? Are 100 "votes" a right value? I could find and "mask" the pupil, and worked my way through the Canny function, but I'm struggling beyond that and my problem is the HoughCircles function. There seems to be failing at finding the Iris' circle and I don't know why. And this is the function I

Android fingerprint detect new finger added

由 佐手、 提交于 2019-11-27 04:33:15
问题 How to detect if the user add new fingerprint to Android settings after he/she authenticate finger inside my application ? i.e. iOS have something called (evaluatedPolicyDomainState) to detect changes in fingerprint catalog what is the alternative in Android ? This require for security reasons to prompt password in this case 回答1: From the documentation for setUserAuthenticationRequired: The key will become irreversibly invalidated once the secure lock screen is disabled (reconfigured to None,

Can we test Face ID in simulator?

由 旧城冷巷雨未停 提交于 2019-11-26 16:57:53
问题 Can we test biometric authentication using the simulator? The iPhone X Simulator shows a menu for Face ID enrollment, but after enabling that, what can I do? How it will recognize a face for authentication? 回答1: Simulator does not recognise a face but allows you to simulate a matching and non-matching faces, if you've enabled Enrolled option from Face ID . Add following code to your view controller and try with Face-ID import LocalAuthentication class ViewController: UIViewController {
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