Approaches approaches cont the degree of brightness of

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Unformatted text preview: arios. Approaches Approaches cont.. The degree of brightness of the diacritic marks repeated 1, 2, 3, 4 and 5 times each 11 11 Evaluation Evaluation The ratios of usable characters for hiding both binary levels according to the three studied approaches Approach Avg Dots 0.3689 Kashidah-Before 0.3676 Kashidah-After 0.2056 Diacritics 0.3633 12 Remarks Remarks • The text and image approaches are discussed which The are used to hide information in Arabic diacritics for steganographic. steganographic. • This work presents a variety of scenarios that may This achieve up to arbitrary capacities. Sometimes tradeoffs between capacity, security and robustness imply that a particular scenario should be chosen. • The overhead of using diacritics was, experimentally, The shown very comparable to related works. • The advantage of the method is that such overhead The decreases if more than one diacritical secret bit is used at once. at 13...
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This note was uploaded on 01/08/2013 for the course ECON 101 taught by Professor Hesham during the Spring '00 term at Newcastle.

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