The growth of high speed computer networks and that of Internet, in particular, has explored
means of new business, scientific, entertainment, and social opportunities. Ironically, the …

Digital representation of copyrighted material such as movies, songs, and photographs offer
many advantages. However, the fact that an unlimited number of perfect copies can be …

Digital audio, video, images, and documents are flying through cyberspace to their
respective owners. Unfortunately, along the way, individuals may choose to intervene and …

We consider the problem of embedding one signal (eg, a digital watermark), within another"
host" signal to form a third," composite" signal. The embedding is designed to achieve …

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 …

A spread-spectrum-like discrete cosine transform (DCT) domain watermarking technique for
copyright protection of still digital images is analyzed. The DCT is applied in blocks of 8/spl …

Electronic watermarking can be traced back as far as 1954. The last 10 years has seen
considerable interest in digital watermarking, due, in large part, to concerns about illegal …

Several authors have drawn comparison between embedded signaling or watermarking and
communications, especially spread-spectrum communications. We examine the similarities …

Digital watermarks have previously been proposed for the purposes of copy protection and
copy deterrence for multimedia content. In copy deterrence, a content owner (seller) inserts …

In the last few years, we have seen many new and powerful steganography and
steganalysis techniques reported in the literature. In the following paper we go over some …