I am trying to implement face detection with camera preview in Android. Does anyone know of any (open source) libraries that can help me?
The OpenCV library has an Android port and provides face recognition as one of the samples for the Android platform. Below is a tutorial .
JavaCV is a Java binding to OpenCV with Android support. It also supports a number of other Computer Vision libraries.
http://code.google.com/p/javacv/
Is there a reason you need to use the opencv external library?
Could you use the built-in android? android.media.FaceDetector;
If your device has some Qualcomm hardware, you can use the new FastCV library: https://developer.qualcomm.com/mobile-development/mobile-technologies/computer-vision-fastcv API is here: https: // developer. qualcomm.com/docs/fastcv/api/index.html