Abstract :
Multimedia watermarking technology has evolved very quickly during the last few years. A digital watermark is information that is imperceptibly and robustly embedded in the host data such that it cannot be removed. A watermark typically contains information about the origin, status, or recipient of the host data. In this tutorial paper, the requirements and applications for watermarking are reviewed. Applications include copyright protection, data monitoring, and data tracking. The basic concepts of watermarking systems are outlined and illustrated with proposed watermarking methods for images, video, audio, text documents, and other media. Robustness and security aspects are discussed in detail. Finally, a few remarks are made about the state of the art and possible future developments in watermarking technology
Keywords :
copy protection; copyright; image processing; multimedia systems; security of data; audio; copyright protection; data monitoring; data tracking; digital watermark; embedded information; host dat recipient information; host data origin information; host data status information; images; multimedia watermarking techniques; robustness; security; text documents; video; Copyright protection; Data security; Intellectual property; Laboratories; Monitoring; Multimedia communication; Paper technology; Radio broadcasting; Robustness; Watermarking;
