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Information hiding-a survey
1999
Proceedings of the IEEE
Information hiding techniques have recently become important in a number of application areas. Digital audio, video, and pictures are increasingly furnished with distinguishing but imperceptible marks, which may contain a hidden copyright notice or serial number or even help to prevent unauthorised copying directly. Military communications systems make increasing use of traffic security techniques which, rather than merely concealing the content of a message using encryption, seek to conceal
doi:10.1109/5.771065
fatcat:ncd7f24fvfdlvcruyr6u62zw2u