Robust Video Watermarking Algorithm Based on Frame DCT
Yan Yang · Video Engineering · 2013
In order to protect the copyright of digital video,combined with the discrete cosine transform(DCT) and digital video related theory,a robust video watermarking algorithm based on frame DCT is proposed. Firstly,the values of watermarking are preprocessed. Then after selected the embedding strength,watermarking information is embedded into the blocking DCT intermediate frequency coefficients of video frames repeatedly. Watermarking is extracted without the original video. Experimental results demonstrate the invisibility and robustness of this algorithm.