Abstract—In this paper, self-quotient referential bilateral filter is introduced. Although bilateral filter is a well-known edge-preserving smoothing filter, it is difficult to handle with light variation. The proposed filter combines bilateral filter and self-quotient filter, and can handle the image with light variation. In our method, we utilize self-quotient image as a reference filter for bilateral filter. Some experimental results are shown to demonstrate the effectiveness of the proposed method. As an application, we also developed a real-time face beautification system combining face detector and the proposed filter. Throughout the experiments, our method has a potential to be used for real-time face beautification system.

Index Terms—Bilateral filter, edge-preserving filter, self-quotient filter, self-quotient referential bilateral filter.

M. Matsumoto is with University of Electro-Communications, 1-5-1, Chofugaoka, Chofu-shi, Tokyo, Japan.

Cite:M. Matsumoto, "Self-quotient Referential Bilateral Filter and Its Application to Real-Time Face Beautification System," International Journal of Computer and Electrical Engineering vol. 7, no. 2, pp. 91-100, 2015.