A Video Watermarking Algorithm Resistant to Copy Attack

Algorithm which could resist copy attack effectively is rare, especially for video watermarking. In order to resist copy attack, the basic idea is to bond video media with watermark information. The video´s feather could identify video uniquely, so this scheme is embedding watermark according to video feature. The distance between each adjacent key frame is selected as watermark information. Watermark image which is conversed from those distances is embedded into key frames by using the DC coefficients quantization watermark algorithm. The experimental results show that this algorithm is robust to common operation on video, especially to copy attack.