Watermarking Chinese Text Document Based on Structure and Semantics of Chinese Characters
Yanxia Zhang · Computer Knowledge and Technology · 2011
To watermark Chinese Text document to protect its copyright,this paper studied Structure and Semantics of Chinese Characters and presented a novel method of watermarking text document.According to four types of Chinese structure,four text binarization rules are made to convert Chinese text into bit string.The eigenvalue is determined by the number of 1 in the bit string.When embedding the watermark into the text,such natural Language processing technologies as word order change,the replacement of synonyms,the replace ment of variant forms of the same word,the adding/deleting of the function words and the sentence compression and expansion are utilized to change the eigenvalue.An experiment is made to a paragraph of Chinese words.The result shows that the method can achieve a larger capacity,better imperceptibility and robustness and the method is feasible.