Can I use iPhone face recognition in apps?

I want to develop an application for iPhone in xcode and integrate face recognition in the application to correspond to other application functions but I do not know how it is pos开发者_如何学编程sible to use face recognition in my application. Any ideas?

Check out this Wikipedia page. It has a lot of references to algorithms, applications, etc.

Check out OpenCV. Here's a blog post that should help get you started:

http://niw.at/articles/2009/03/14/using-opencv-on-iphone/en

See the Apple published iOS sample code that implements face detection called SquareCam. --

Integrating with CoreImage's new CIFaceDetector to find faces in a real-time VideoDataOutput, as well as in a captured still image. Found faces are indicated with a red square.