摘要： 通过对WORD页面描述机制的分析,提出了一种适用于WORD文档保护的数字水印算法。通过修改文本块中不同字符的字体颜色值,将水印以正弦波的特征形式嵌入文本中。检测时通过提取字体颜色特征,重构正弦波来鉴定文档。实验结果表明,该算法实现的水印具有较好的视觉透明性和检错能力。

关键词: WORD, RGB, 正弦波, 数字水印

Abstract: On the basis of a detailed analysis of WORD operators with reference to page description,a digital watermarking algorithm is proposed for the protection of WORD documents,The watermark,with the modification of the color of character font in the text,can be embedded into the document.After the modification,the font colors of various characters show the characteristics of a sine wave.The authenticity of a WORD document can be verified by distilling the characteristics of font color and reconstruct the sine wave.The experimental results show that the watermarked documents have good perceptual transparence and the character changes in the WORD documents can be detected.

中图分类号: 

• TP309