Information hiding

a form of information processing

embeds data into trivial media for the purpose of concealing the secret communication. Provided that the change due to the above-mentioned process cannot to be detected by human vision system

only the two parties of communication know the covered channel within the traffic

thus it arouses less suspicion. In this paper the authors believe that information hiding combined with encryption techniques can provide a perfect scheme for high strength secure communications. Utilizing a new information hiding algorithm based on noise extraction

the above-mentioned scheme has been realized

to design the algorithm the factors including image quality

ability of whole bits restoration

security

performance of anti-detection have been taken into account. Finally

the experiment and analysis of anti-detection are given.