Evaluation of Multimedia Fingerprinting Image
Kang Hyeon · InTech eBooks · 2012
It would observe an enormous growth about a use and distribution of multimedia content in Internet, and an illegal copy and redistribution of multimedia content are also increased with a serious proclivity for a wrongdoer.Among multimedia content specially, a digital image has been widely used in a variety of applications, from web, digital camera photography, military information and digital art to medical diagnosis and personal blog.As like this, digital image is more and more important media in an information society.Therefore, a necessity for a reliable multimedia content has been rising rapidly in recent years.How to protect the original creator's Intellectual Property Rights (IPR) and integrity of digital products is a realistic problem urgently needing to be solved [1].Accordingly, the copyright of a content creator has to be protectable for IPR and discriminate between the original from an illegal copy.Furthermore, a tracing of an illegal distribution has to be a necessary for a copyright protection and a cutoff of an illegal copy of multimedia content.The methods to prevent from an illegal reproduction and distribution are categorized into two ways.The one is enable to use and transmit within a boundary of admitted limitation for authorized users, and the other is to trace how people reproduce and redistribute the content illegally, when they are found to be illicit in contact with an unauthorized content [2].In the early, the studies of content copyright protective are limited in application by encryption method, a watermarking technology introduced by the alternative.Watermarking method inserts the original owner information to content.After piracy, the watermarking information is extracted from content, and then it compares with the original watermarking information [3].So this method could be proving the original owner.But, watermarking method can only confirm the copied illegal content, and it never confirms the illegal distributor and the distributed path.Digital watermarking method indicates the copyright which is made with a provider's self information and directly inserted into multimedia content.This orientation of technology comes from an intention to protect a copyright because multimedia contents on a web are easy to redistribute.Fig. 1 and 2 show the process of the watermark insertion and watermark detection.According to the developed technology of watermarking, multimedia fingerprinting technology [4-6] was rising also.Multimedia fingerprinting technology includes owner's www.intechopen.