Pei-Ling Chiu, Kai-Hui Lee, Kuo-Wei Peng, Sue-Ying Cheng. User-friendly visual cryptography with complementary cover images. In 2013 IEEE China Summit and International Conference on Signal and Information Processing, ChinaSIP 2013, Beijing, China, July 6-10, 2013. pages 641-644, IEEE, 2013. [doi]
Abstract is missing.