Text Digital Watermarking Technology Based on Topology of Alphabetic Symbol
Zhou Ming-tian · Journal of Chinese Computer Systems · 2007
A novel text digital watermarking technology based on human psychological cognitive model is presented in this paper. Through changing the topology of a character or string, different structure figures are schemed out, which represent the same semanteme, and these figures should be correctly encoded. With this technology, digital watermarking information is embedded in different topology of a character or string. The text digital watermarking technology has the following advantages: great capacity of watermarking, strong robustness, little visual influence and quite good attack-resisting capability.