Face Recognition Sample Android

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I need the Face Recognition for Login to Application in offline mode. I need to save the person Face data and compare next time he come, and if he is already logged-in, then let him in, otherwise ask him to register. So, basically, I need to compare two faces, and get the Matching probability in offline.

please DO NOT EVER TRY THAT

• honestly, if you have to ask, how things work, you're absolutely the wrong person to mess with other folk's security
• using face reco for authentification is a terrible idea in the 1st place, as you can easily fool it with an image
• opencv's face-reco can't be used for this, it's basically a "pick best of a finite set" machine, what you wanted is called "verification" (and is a ton harder to do.)

again, do the world a favour, and forget the whole idea immediately.

I do want Face recognition for any secure app. I want it for a less secure app, where user privacy does not matters a lot. I just want to use this as a type of login, to faster re-login process on an overall.

So, please suggest any procedure, or steps to do with Opencv3.

yea, train a 2-class SVM (one-against-many) with a ton of negative data, look up OSS(one-shot-similarity)

again, you cannot use opencv's face-reco, because it is very likely, that you encounter an unknown person that looks more similar to you, than any other person in your db