Thank you for your help.
I have already done the detection of objects and even the face. Now I need to do the recognition between face, what seems to be more difficult.
YuriGalileo - There is an example in Object Detection that recognize a Face and the eyes in the face. Maybe you can use this to as a guide to recognize the mouth as well. Keep us posted on your results.
I saw the code and my code for face detection is based on it. I have read the other webpage here, which user but I'm having the following troubles:
if len(sys.argv) < 2:
print "USAGE: facerec_demo.py </path/to/images>"
Error: SyntaxError: Non-ASCII character '\xe2' in file 13mayreconhecimento.py on line 60, but no encoding declared; see http://www.python.org/peps/pep-0263.html for details
The includes: ImportError: No module named facerec.feature
Do you have any idea what it is about?