Issue No.01 - January/February (1999 vol.19)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/38.736465
Digital watermarks have been proposed to protect legal owners from piracy--illegal copying and retransmission. However, many research problems remain open, and watermarking techniques are themselves vulnerable to piracy. This article collects fundamental watermarking concepts and offers a general watermarking framework for protecting the copyright of digital products. Registration of watermarked products is proposed for developing a trustworthy overall protection system.
George Voyatzis, "Protecting Digital-Image Copyrights: A Framework", IEEE Computer Graphics and Applications, vol.19, no. 1, pp. 18-24, January/February 1999, doi:10.1109/38.736465