E.G. Zhilyakov - Dr.Sc. (Eng.), Professor, Head of Department of Information and Telecommunication Systems and Technologies, Belgorod State University, Belgorod, Russia. E-mail: zhilyakov@bsu.edu.ru
A.A. Chernomorets - Ph.D. (Eng.), Associate Professor, Head of the Department of Applied Mathematics and Computer Science, Belgorod State University, Belgorod, Russia. E-mail: chernomorets@bsu.edu.ru
E.V. Bolgova - Post-graduate Student, Department of Applied Mathematics and Computer Science, Belgorod State University, Belgorod, Russia. E-mail: bolgova_e@bsu.edu.ru
N.N. Gahova - Ph.D. (Eng.), Associate Professor, Department of Applied Mathematics and Computer Science, Belgorod State University, Belgorod, Russia. E-mail: gahova@bsu.edu.ru

In this paper are investigated the ways to improve the accuracy of information recovery embedded into the image-container on the basis of subband secret embedding. It is also shown the high efficiency of this method while embedding the information into different space frequencies subareas. Computational experiments have demonstrated high efficiency of the method of implementation subband information in the subdomain spatial frequency image-container. The paper also analyzed the approaches to improve the accuracy of data recovery implemented.