Source:
(Computer World News
First
44
period
B1
Digital watermarking technology is a new research application direction in the current information security technology. Through a digital watermark system, we can use people's eye-catching watermark form to embed some identification information in digital media to address security issues such as copyright protection and source authentication in an open network environment. Since digital watermarking technology has a wide range of application prospects and huge business opportunities, the international industry, academia and military are extremely valued, and support and carry out relevant research. There are also many research institutions and colleges that are engaged in digital watermarks. In recent years, digital watermarking technology has continued to expand new applications, and applications in printing and anti-counterfeiting are a new topic. The information shows that about 500,000 people suffer from fake documents and fake documents per year, with approximately $ 750 million. Due to the imperfect technology of anti-counterfeiting technologies, the criminals have become more chances, fake crimes are not uncommon, and the formulation of fake sales has become the second major public hazard that is second only to drug trafficking. In this regard, many countries are actively studying countermeasures, and print digital security for digital watermarking technology is important. Researchers at my country's departments are currently stepping on the research work of digital watermark printing and anti-counterfeiting technology, and has achieved some effective research results. In the first issue, Juniangwei, the School of Electronic and Information Engineering, Dalian University of Science and Technology, and the Beijing Electronic Technology Application Research Institute, Junhang, just introduced digital watermarking technology and its application in printing and anti-counterfeiting, and digital watermark printing security technology current research and application status quo. (Computer World Daily No. 44 B1)
