Identifying a Specific Face in an Image

Using OpenCV's HaarDetectObjects with haarcascade_frontalface_default.xml, I've f开发者_高级运维ound I can detect a face fairly reliably. However, is anyone aware of any libraries or methods for identifying a face (i.e. labeling it with a name)?

Check out PyVision. It's part of a research project out of Colorado State University but it's fairly mature. I've had good success using it, though I've never used the face-labeling parts.