Adaptive information hiding algorithm based on video coding standard
Qiwen Hu · Jisuanji yingyong yanjiu · 2012
In order to get reliable retrieval of embedded message under lossy compression,this paper developed an algorithm that integrated data hiding into the MPEG-2 codec.It associated the adjustment factor of the strength and quantity of data hiding with the control parameter of lossy compression,combined with the constraint of human visual system,the demand of hiding capacity and distortion impact of lossy compression,to achieve a trade-off of visual quality,capacity,robustness and other parameters adaptively.Experimental results show that the proposed algorithm not only resistes strong lossy compression,but also possesses robustness to common attacks,including noisy interference,low-pass filtering,transcoding and frame dropping.Thus it is an effective robustness hiding algorithm with flexible compromise mechanism to hide and accurately retrieve hidden data in a MPEG-2 lossy compression framework.