Earlier this year I mentioned a nice UIImageView add-on that uses Core Image to make face aware image views so you can easily center your images based on the faces within called UIImageView_FaceAwareFill.
Here’s another nice component that makes use of Core Image’s face detection features submitted by Maxim Makhun called Smile-Detector-CameraViewController.
This component provides a camera view controller with integrated sharing that uses CIFaceFeature’s smile detection in order to make it easier to take selfies.
An image showing Smile-Detector-CameraViewController in action:
You can find Smile-Detector-Camera-View-Controller on Github here.
A nice component for those creating camera apps.
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