Abstract
We introduce a steganographic protocol based on linear error block codes. Our method is an extension of Westfeld’s F5 algorithm. It allows to grow embedding capacity by exploiting more bits from the cover, in such a way that the probability for each bit to be flipped is related to its influence on the image quality. For example least significant bits (LSB) are the most exposed to alteration. Moreover, linear error-block codes, as a generalization of linear error correcting codes, provide larger and better choices for the codes to use. The results show that with a good choice of parameters, the change rate can also be reduced for an acceptable image quality.
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Dariti, R., Mamoun Souidi, E. (2011). Improving Code-Based Steganography with Linear Error-Block Codes. In: Snasel, V., Platos, J., El-Qawasmeh, E. (eds) Digital Information Processing and Communications. ICDIPC 2011. Communications in Computer and Information Science, vol 189. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-22410-2_27
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DOI: https://doi.org/10.1007/978-3-642-22410-2_27
Publisher Name: Springer, Berlin, Heidelberg
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