小波变换在信息隐藏中的应用研究

he dominating institution who dedicated in information hiding is focus on how to hide the information into image, sound or words. The research of this paper have done the following work : went deep into the theory of information hiding and the associated technology. Analysed the arithmetic of the spatial domain and transformed domain information hiding as well as compared the two approaches of their advantage and short-comings. Chosed the random approach in spatial domain and the wavelet in transformed domain .Last proposed a approach to integrate the two plans together as well as achieve the information hiding of an confidential information to another information.