1. Podilchuk, C.I., Delp, E.J.: Digital watermarking: algorithms and applications. IEEE Signal Proc. Mag. 33–46 (2007)
2. Cox, I., Miller, M., Bloom, J., Fridrich, J., Kalke, T.: Digital Watermarking and Steganography, 2nd edn. Morgan Kaufmann, Burlington, MA (2007)
3. Hartung, F., Kutter, M.: Multimedia watermarking techniques. Proc. IEEE 87(7), 1079–1107 (1999)
4. Komatsu, N., Tominaga, H.: Authentication System Using Concealed Image in Telematics. Memoirs of the School of Science and Engineering, Waseda University, 52, 45–60 (1988)
5. Tirkel, A.Z., Rankin, G.A., Schyndel, R.M.V., Ho, W.J., Mee, N.R.A., Osborne, C.F.: Electronic watermark. In: Digital Image Computing, Technology and Applications (DICTA’93), 666–673 (1993)