Live face detection in Android

I'm trying to implement face detection with the camera preview in Andro开发者_高级运维id. Does someone know any (open-source) libraries that can help me do this?

---

OpenCV library has the Android port and provides face detection as one of samples for Android platform. Here is a tutorial to start with.

---

JavaCV is a Java binding to OpenCV with Android support. It also has supports a number of other Computer Vision libraries.

http://code.google.com/p/javacv/

---

Is there a reason you have to use an external opencv library?

Could you not just use the built in android one? android.media.FaceDetector;

---

If your device has some Qualcomm hardware, you can use the brand new library FastCV : https://developer.qualcomm.com/mobile-development/mobile-technologies/computer-vision-fastcv API is here : https://developer.qualcomm.com/docs/fastcv/api/index.html