Application of Digital Watermarking on Security Printing
At present, copyright protection and forgery prevention have become increasingly prominent in color pressworks, so, many people pay more attention to anti-counterfeiting technology of printing image. In this paper, digital watermarking was used into forgery prevention of printing image in order to achieve the anti-counterfeiting of pressworks. Based discrete wavelet transform and singular value decomposition, the digital watermarks were embedded into color image through embedding watermark into singular value of wavelet coefficients matrix. The color image was printed and scanned after the digital watermarks were embedded, then watermark extraction and Evaluation was performed. Experiment shows that the robustness and invisibility of this algorithm are strong, and that the digital watermarking proposed in this paper would be stand against general printing and scanning process. So, the digital watermarking technology in this paper can be used in copyright protection and forgery prevention of color pressworks. Compared with other anti-counterfeiting technology in security printing, the method in this paper has the advantages of low cost and simple implementation.
Tang Bao-ling Chen Guang-xue Chen Hai-sheng Chen Qi-feng Tai Jing-lei
Pulp & Paper Engineering State Key Laboratory, South China University of Technology, Guangzhou 51064 Zhongshan Torch Polytechnic, Zhongshan 528136, P.R.China
国际会议
The 31st International Congress on Imaging Science(第31届国际影像科学大会 ICIS2010)
北京
英文
591-594
2010-05-12（万方平台首次上网日期，不代表论文的发表时间）