A New Watermarking Scheme for CAD Engineering Drawings
So far most watermarking Schemes focus mainly on common dot image, audio, video and text. Studies on the watermarking of vector graphics especially the 2D vector engineering drawings have only just begun. This paper proposed a novel watermarking technique for 2D engineering drawings, which is based on Modulus operation and Hopfield network. Watermark is embedded proportionately into the lengths of lines from an engineering drawing via Modulus calculation and can be extracted without exploiting the original engineering drawing. To improve the security of watermarking, we preprocess the watermark data using Arnold transform before embedding. By means of Hopfield network the extracted watermark can be further recovered and amended effectively.Experimental results show the proposed watermarking scheme is almost completely robust to rotate, scale, transplant (RST) as well as their combinations, and also strong enough to cropping attacks.
Watermark Engineering Drawings Modulus Operation Hopfield Network.
Hua Zhao Wenjun Yuan Zhijian Wang
HoHai University, Nanjing, P. R. China;Shandong Water Polytechnic, Shandong, P. R. China Rizhao Company of CNC Group, Beijing, P. R. China HoHai University, Nanjing, P. R. China
国际会议
昆明
英文
518-522
2008-11-22（万方平台首次上网日期，不代表论文的发表时间）