Digital watermarking

The article explores digital watermarking technology from many angles, focusing on the technology and engineering efforts, applications, limitations, attacks, benchmark tests, standardization opportunities, business models, and market acceptance. Digital watermarking technology is making headway in several research areas as well as in commercial products, bringing a recent tide of publicity and controversy. The advent of the Internet has meant new business, scientific, entertainment, and social opportunities in the form of electronic publishing and advertising, real-time information delivery, product ordering, transaction processing, digital repositories and libraries, Web newspapers and magazines, network video and audio, personal communication. Digital watermarking is the embedding of unobtrusive marks or labels that can be represented in bits in digital content. Digital watermarking technology is an emerging field in computer science, cryptography, signal processing, and communications under active research and development