A Novel Digital Video Watermarking Algorithm for Video Authentication.
A. Anitha Rani, A. Kirthika · 2013
The increasing amount of applications using digital multimedia technologies has accentuated the need to provide copyright protection to multimedia data. This paper reviews one of the data hiding techniques - digital video watermarking. The requirement of secure communication and digital data transfer has potentially increased with the development of multimedia systems . Applications of video watermarking in copy control, broadcast monitoring, finger printing, video authentication, copyright protection etc is immensely rising. Advanced Video Codec (AVC) is becoming an important alternative regarding reduced band width, better image quality in terms of peak-signal-to-noise-ratio (PSNR). H.264/AVC uses different transformation and block sizes than MPEG series, so development of new algorithms is required to integrate semi fragile and robust watermarking techniques for different profiles of H.264/AVC. Moreover one of the target applications of H.264 is videophone and video conferencing. These require criteria that watermarking needs to be performed in real time. The proposed algorithm can achieve semi fragile watermark extraction against H.264 compressed videos.