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Face Recognition Sample Android

asked 2016-10-12 05:08:14 -0500

akashdeep gravatar image

I am not able get any Android sample for Face Recognition (Not only detection) using OpenCV 3. Please provide me a link or sample, where I can find the Android sample for Face Recognition using OpenCV 3.

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answered 2016-10-12 05:20:49 -0500

berak gravatar image

updated 2016-10-12 05:23:12 -0500

unfortunately, there is no such thing.

(to even useopencv3' face recognition, you would have to re-build your android sdk with, and enable the java wrappers in the face module by adding "java" to the 1st line in cmakelists.txt)

idk, what you need the facerecognition for, depending on your use-case, maybe we can find an alternative solution (e.g. putting it on a server, simply "roll-your-own", use some service, etc.)

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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.

akashdeep gravatar imageakashdeep ( 2016-10-12 05:38:14 -0500 )edit


  • 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.

berak gravatar imageberak ( 2016-10-12 05:48:17 -0500 )edit

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.

akashdeep gravatar imageakashdeep ( 2016-10-12 06:28:27 -0500 )edit

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

berak gravatar imageberak ( 2016-10-12 07:08:48 -0500 )edit

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

berak gravatar imageberak ( 2016-10-12 07:12:07 -0500 )edit
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Asked: 2016-10-12 05:08:14 -0500

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Last updated: Oct 12 '16