Abstract
Digital multimedia has become a ubiquitous part of the modern life with the rapid advancement of network communications systems. Digital multimedia content, in the form of images, audios, and videos, is widely used in electronic commerce, national security, forensics, networked communications, social networking websites, and other fields. Through electronic devices, digital multimedia information can be quickly and conveniently shared over the Internet. With the state-of-the-art powerful signal and image processing techniques and the widely available multimedia editing tools with perfect reconstruction capabilities, digital multimedia content is susceptible to malicious manipulations and alterations. It is difficult for users to establish the authenticity of the multimedia content. As a consequence, the copyright owners may suffer huge economic losses and reduced value of the actual multimedia resources. It might also cause a social disorder if digital multimedia content, such as confidential government documents, judicial evidences, or other significant information, were maliciously tampered. Digital images are one of the most widely used types of multimedia and a basis for video. Therefore, the content protection of multimedia, such as images and videos, is becoming an important problem in the study of information security.
Published Version
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