Abstract: Facial animation includes not only the facial expression change,but also the movement of eyes and head.To generate these natural and rich animations,a facial animation system based on single image is proposed.Firstly,a method of gradient field editing is adopted to transfer the source expression to the input image.In order to avoid transferring non-expression information,such as flaws or moles on the source image,WLS operator is used to smooth the source image.Secondly,eye texture synthesis technique is proposed to synthesize the eyeball and eye-white texture,to fulfill eye animation.Finally,a standard 3D facial model is used to help generate different head pose on the input image.Experimental results show that this system can be used to generate natural and vivid facial animation in real time.