Face Detection and tracking using android vision
<p>I am trying to make a simple app to instruct the user (audio instructions) when a face is detected and based on the happiness level tracked. I use <a href="https://github.com/googlesamples/android-vision/tree/master/visionSamples/FaceTracker" rel="nofollow">FaceTracker</a> as the base for my program. </p>

<p>I am not able to identify when a face is detected and where can I insert the audio instructions in the face detected pipeline. I mean how the control flows in the pipeline. </p>

<p>Could somebody please suggest on this?</p>