Tagging people in videos in opencv.

edit

Hi all, I am looking for a problem of recognizing known people in a video. I did according to these links. http://www.shervinemami.info/faceRecognition.html http://docs.opencv.org/trunk/modules/contrib/doc/facerec/tutorial/facerec_video_recognition.html

But the problem with the first link is that, always it shows the same name to everyone. And I tried under several illumination conditions. but I failed.

And with the link, I dont know how to tag people with their names. And it always shows a wrong label.

Can anyone help me with these two problems?