face recogniton with fuzzy logic

Hi, everyone: I am doing the face recognition with fuzzy logic. I got the RGB data and depth data of face already. Then I built a fuzzy logic. The inputs are RGB and depth, the output is accept/reject. I used my face's data to be a threshold. my question is how can I embed the facees' data into the fuzzy logic and how can I connect the fuzzy with a face recognition system?