A Blind Watermarking Algorithm Based on HVS and RBF Neural Network for Digital Image. - Cheng-Ri Piao; Seunghwa Beack; Dong-Min Woo; Seung Soo Han (ICNC (1), 2006)

Color Image Watermarking Algorithm Using BPN Neural Networks. - Cheng-Ri Piao; Sehyeong Cho; Seung Soo Han (ICONIP (3), 2006)

Robust Digital Image Watermarking Algorithm Using BPN Neural Networks. - Cheng-Ri Piao; Wei-zhong Fan; Dong-Min Woo; Seung Soo Han (ISNN (2), 2006)

Robust Digital Image Watermarking Algorithm Using RBF Neural Networks in DWT domain. - Cheng-Ri Piao; Qiang Guan; Jun Rim Choi; Seung Soo Han (Int. J. Fuzzy Log. Intell. Syst., 2007)