Video Encryption by Using Visual Cryptography Based on Wang’s Scheme

摘要

Visual cryptography could be used to encrypt secret video so that each participant has their own share in encrypted form. The encrypted video could be played. To recover the original video, all participants have to join their shares. In this paper, we developed a method to encrypt video by using Wang's scheme. If the secret video has the audio, then the scheme is applied to each frame. The audio could be combined to each share or not. Experiment results show that the scheme could be applied very well to video. The recovered video is same exactly with the original video.