الفهرس 
Classificationof DataHidinOnly 14 pages are availabe for public view
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Abstract
Digital watermarking and data hiding, schemes to embed secondary data in digital media have made considerable progress in recent years and attracted attention from both acadimia and industry as a security tool. Data hiding is also found useful as a general tool to send side information in multimedia communication for achieving additional functions or enhancing performance.
Imperceptibility, robustness against moderate processing such as compression, and the ability to hide many bits are the basic but rather conflicting requirements for many data hiding applications