The issue of unauthorized copyright has been prominent for several years. Now with the use of the internet, it is 100% more easier, quick and cost effective to copy and upload information. Since the web has become a platform of distribution of multimedia content, people can now modify and manipulate files, ideas, and then claim it is their own property. Unauthorized copying occurs in numerous domains such as entertainment and electronic business. There are many methods to prevent copyright, yet these methods fail to protect files from external "attacks". Thus, a new key technology was established for ownership rights: the Digital Watermarking. Digital Watermarking is based on an old technology: Watermarking, which is the method of implementing a message or pattern, is only visible if held to light. To protect printed text documents, logos are printed in the back. However, the Watermarking only prevents replication of physical objects. Digital Watermarking is a similar technique but for digital content, it is a low energy signal embedded in another signal (to hyper link and doc that explains the idea of the technique) enforcing intellectual property. It exists two types of digital watermarking : visible and invisible. Visible watermarking is a watermark that is visible in the visual content, invisible watermarking, on the other hand, cannot be detected by juts viewing the digital content.
Advantages of Watermarking Technology
Since the internet has become the primary source of piracy, several companies are reluctant to distribute material electronically, because they may fear their work may be plagiarized, yet with the Digital Watermarking, organizations can electronically sign their work, thus the technology works as a digital signature. Furthermore, it is a technology that suits all types of organizations, either national or international, simply because it targets an issue that can occur everywhere. Using a Digital Watermarking ensures the organization that the work belongs to them, in case of juridical problems, organizations can prove through watermark that they are not plagiarizing. Finally, organizations would feel more comfortable sharing ideas and information with other cooperations or even customers without feeling insecure.
Disadvantages of Watermark Technology
Even though digital watermarking seems to be the perfect technology for copyright, yet nothing has guaranteed that it will be secured, at any time new filter may come an interfere with the system and copy the data. In addition, interferences may occur to identify to whom the work belongs to.
References:
Bruce, Allan M. "A Review of Digital Watermarking." 2 Nov. 2001. Dept. of Engineering. 30
Sept. 2007
"Digital Watermarking: a Technology Overview." Wipro. 2001. 30 Sept. 2007
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