A Video Watermarking Method on Multilevel and Multidimensional DCT Domain
Zhang Gui-cang · Computers & Security · 2011
This paper presents a novel video watermarking method based on multilevel and multidimensional DCT,by using the property of energy convergence of discrete cosine transformation(DCT).Firstly,the video frames are partitioned into some classes.Then,According to the classes,the data of video frame are processed by using DCT in different dimension.Finally,the watermark information are embedded into the DCT coefficients produced in the last step.Experimental studies show that the watermarked video is highly imperceptible and resistant to some degradations and distortions of video,especially the noise,coding and temporal processing.