A Method for Secret Transmission of Color Video

In order to realize secret transmission of great color video information. This paper presents a new scheme capable of hiding low level MPEG Ⅱcolor video streams into main level MPEG Ⅱcolor video streams. It makes full use of vision character of our eyes and selects information of intermediate/high frequency as revisable host vector in the DCT domain of host video streams, which are not sensitive to our eyes. A novel embedding method is proposed in this paper. As many as 2L bits of information data can be embedded by changing, at most, L bits in the (2L+1) bits cover data, which makes higher data\|embedding efficiency and better secrecy. The scheme can be also used for secret transmission of other stream media and great information. The scheme has been simulated in Local area Networks and better experimental results have been given.