| 1. | It extracts the document ’ s chinese pinyin , makes planar document three - dimensional by chinese pinyin , inserts the watermark information into the solid document by characters ’ extending , and extracts the watermarks of each layer which verify each other in the end
该算法提取出文档的汉语拼音,利用汉语拼音将平面文档立体化,再利用字符缩放将水印立体地嵌入到文档中,提取时通过提取不同层面的水印进行互相验证。 |
