Here’s a nice example from Danny Shmueli showing how to use the facial gesture recognition on streaming video added with iOS 7 for detecting blinking, and smiling gestures.

One of the key issues with using this facial gesture recognition feature is that performance, and the example does a nice job of handling this issue. The logic has been nicely extracted so you can use this gesture recognition in your own projects.

Here’s a video showing DSFacialGestureDetector in action:

You can find DSFacialGestureDetector on Github here.

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