Blind watermarking algorithm of color video based on lowest fre-quency domain of 3D wavelet
Yang Qun-sheng · Computer Engineering and Applications Journal · 2009
Video watermarking technology is an efficient method to protect the copyright of digital video.A color video watermarking algorithm based on 3D DWT is presented.It partitions the video with 16 frames in each scene.The two level and three dimensional wavelet transform is carried out in the Y component of YCbCr color space,and the watermark is embedded in the lowest frequency frames by using the characteristic that the coefficients are close and different.The watermark can be extracted without original video.Experiment results show that the image quality of embedded video is good and the algorithm is robust.It can effectively resist all kinds of video geometrical attacks and MPEG compression.