Video Watermark Algorithm in Wavelet Domain with Side Information
Zhiqiang Yao · Jisuanji gongcheng · 2009
By using side information in frame and between frames,this paper proposes a video watermark algorithm in wavelet domain with side information. In the algorithm,dither modulation is adopted,and the motion feature and texture feature are used as side information to determine the adaptive quantification step of every frame. Experimental results indicate that the algorithm can implement blinding examination and the invisibility is good. It is also robust to the special attacks of video watermark such as Gaussian noise,frame average,frame delete and frame displacement.