2013-08-21 04:53:47 -0600 | answered a question | Facial feature detection In my opinion you should try Shi and Tomasi corner-detector to detect mouth corners. I think OpenCV has the API for it. HaarCascades won't give you mouth corner points, it would only return you a rectangular region that has mouth. OR as pointed out by Kirill use can also use AAM/ASM to detect face features. |