Steganographic algorithm based on error-correcting codes for gray scale images

R. Crandall introduced in the matrix encoding idea to improve the embedding efficiency for steganography. The steganographic algorithm F5 proposed by Westfeld is the first implementation of the matrix encoding concept to reduce modification of the quantized DCT coefficients. In this paper, a new construction of protocol steganography is considered, it is an extension of the error correcting code and steganography construction introduced by the authors in. The proposed method consists of use the Majority logic decoding, for embedding the message in the cover image, the extraction function is always based on syndrome coding.