Steganographic Method of Embedding Data in Images for Transmission over a Noisy Communication Channel

Abstract

A method for embedding a visually imperceptible message into an object of a digital image for transmission through a noisy communication channel is proposed. The embedding method is based on inverting some of the pixels of the secret image according to a certain rule and adding them to the selected positions of the bit plane of the least significant bit according to the mask generated by the pseudo-random number generator (PRNG). The authors use a two-dimensional nonlinear filtering algorithm in order to ensure the integrity of the data transmitted over the communication channel at low signal-to-noise ratios. The article presents the results of experimental estimates of the invisibility of the embedded image and the integrity of the original and secret images after transmission over a noisy communication channel for signal-to-noise ratios up to -6dB.