fingerprint

问题 I'm in a roadmap developing an apps which allows employees to scan fingerprint with the support of Android app. The last time I heard off is that it only allow one user per device, unless I'm using custom SDK from custom company that provided it with their fingerprint hardware, is there any ways for me to integrate fingerprint from android app to my back end, with multiple users. im trying to make time-attendance system. 回答1: There's some external fingerprint scanners compatible with Android

问题 I'm a trying to compare fingerprints. Here's what I got so far. Get the raw image from a digitalPersona sensor. image Binarize it. image Skeletonize it. I used Hall's algorithm because that is the only one I got to work more or less properly. You can still see some flaws. image Strip the convex hull (inverted Jarvis algorithm) and get all the ridge endings as an array of (i, j) coordinates (points with one neighbour only). I also have a script to get the bifurcations (3 neighbours).

问题 I have built a new development machine and installed Android SDK. I tried to obtain the Android MD5 debug fingerprint but cannot seem to get it to generate. I have deleted the debug.keystore to create a new one and only the SHA1 fingerprint is present. Please advise Here is my debug.keystore contents: c:>"C:\Program Files\Java\jdk1.7.0\bin\keytool" -list -keystore "C:\users\me\.android\debug.keystore Enter keystore password: ** * ** * * WARNING WARNING WARNING * ** * ** * * The integrity of

问题 Is there any possible way to connect fingerprint biometric device to the website..? I have created a web-based ERP system. As per the client requirement, I need to integrate fingerprint logging system. My website was developed with C# and angular2. I have tried many sdks but nothing works as I expected. 回答1: Fingerprint scanners with Web API for interacting from the web page is not provided by the manufacturers. There are some 3rd party vendors providing the APIs for the same under payable

问题 I've recently had a trouble making Galleria plugin work with Rails 4 Pipeline and it took me a while to figure out how to make it work, so I wanted to share the solution in case somebody has the similar problem. 1) After downloading the plugin, put galleria-1.3.3.js ( it's the current version on the day I write it ) and galleria.classic.js ( or other style js file ) to vendor/assets/javascripts 2) Put galleria.classic.css ( or other theme stylesheet) to vendor/assets/stylesheets 3)Add //=

问题 in IOS8 can i take the fingerprint data and save it or use it somewhere else , this Code to Authoticate - (void)authenicateButtonTapped:(id)sender { LAContext *context = [[LAContext alloc] init]; NSError *error = nil; if ([context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) { [context evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:@"Are you the device owner?" reply:^(BOOL success, NSError *error) { if (error) { UIAlertView

问题 in IOS8 can i take the fingerprint data and save it or use it somewhere else , this Code to Authoticate - (void)authenicateButtonTapped:(id)sender { LAContext *context = [[LAContext alloc] init]; NSError *error = nil; if ([context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) { [context evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:@"Are you the device owner?" reply:^(BOOL success, NSError *error) { if (error) { UIAlertView

问题 I am using iso 19794-2 fingerprint data format. All the data are in the iso 19794-2 format. I have more than hundred thousand fingerprints. I wish to make efficient search to identify the match. Is it possible to construct a binary tree like structure to perform an efficient(fastest) search for match? or suggest me a better way to find the match. and also suggest me an open source api for java to do fingerprint matching. Help me. Thanks. 回答1: Do you have a background in fingerprint matching?

问题 I am using iso 19794-2 fingerprint data format. All the data are in the iso 19794-2 format. I have more than hundred thousand fingerprints. I wish to make efficient search to identify the match. Is it possible to construct a binary tree like structure to perform an efficient(fastest) search for match? or suggest me a better way to find the match. and also suggest me an open source api for java to do fingerprint matching. Help me. Thanks. 回答1: Do you have a background in fingerprint matching?

问题 I need to create an application that scans fingerprints and authenticates them. I can't find anything about fingerprint permissions on the Android website. Is it possible to use a phone's fingerprint scanner for a regular application? If so, what is the limit on the number of fingerprints it can store (I'd prefer to store them on the phone itself) Thanks 回答1: Fingerprint scanner is not a feature in Android (Now available on Android M) . So each company as Samsung, Motorola, HTC create is own