A high capacity data hiding algorithm for H.264/AVC video
Mehdi Fallahpour, Shervin Shirmohammadi, M. Ghanbari · Security and Communication Networks · 2015
Abstract This article presents an information hiding algorithm for H.264/AVC video stream. It utilizes position of the last nonzero level of quantized discrete cosine transform block to embed information bits. Because only the high‐frequency levels are changed, it can guarantee a high peak signal‐to‐noise ratio and slight increase in bit rate after the watermark embedding. The extraction process is not complex; thus, the proposed technique is an excellent solution for real‐time applications such as broadcasting. Experimental results on several test sequences demonstrate that the proposed approach can realize blind extraction with real‐time performance; it also provides very high capacity, low distortion and increase in bit rate by about 0.5%. Copyright © 2015 John Wiley & Sons, Ltd.