Video enhancement is an important preprocessing phase in many computer vision applications. Many techniques have been proposed to handle various severe environments, In this paper , we proposed a novel method to combine the tone mapping function with the bilateral filter for local contrast enhancement improving ,by our simulation result , this tone mapping curve is similar to human visual as a log transfer function. At same time , the drawback of tone mapping by Gaussian filter is also be improved . By our experiment result , The proposed algorithm performed well on low contrast images, and the algorithm can be implemented by fast fourier transform for execution efficiency, it will be the suitable function for video camera, driver recorder ,still camera applications .