Boosting the Capacity of Diacritics-Based Methods for Information Hiding in Arabic Text

New promising techniques for information hiding in vocalized Arabic text are proposed in this paper. These techniques make use of diacritics (vowel signs), which are optional to put, by showing or omitting them to hide bits. The techniques are found to be very useful due to the considerable provided capacity, and because every possible diacritic in the cover text is used to hide a bit. In these methods, even excluded or omitted diacritics will be hiding bits. Tests and comparisons show that the capacities of the proposed techniques are superior than any other related published work.