Ehsan Nezhadarya, Z. Jane Wang, Rabab K. Ward. A new data hiding method using angle quantization index modulation in gradient domain. In Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011, May 22-27, 2011, Prague Congress Center, Prague, Czech Republic. pages 2440-2443, IEEE, 2011. [doi]
Abstract is missing.