Considering the characteristic of Human Visual System, we classify the Chinese characters based on the set of Chinese character’s property vector, choose the Chinese characters of which have few strokes and more frequencies, then embedded watermarks through modify its font color attribute value. The improved algorithm can insure the capacity of embedding and imperceptibility.
针对人类视觉系统对颜色的感知特点,本算法通过对由汉字特征向量构成的样本集合的模糊聚类分析,得到样本集合中笔画数较少,而使用频率较高的汉字,将这些汉字作为水印嵌入时的水印承载位,通过修改其字体颜色属性值嵌入水印信息,较好的保证了水印的不可见性和水印的嵌入容量。
参考来源 - 基于模糊聚类方法的盲文本数字水印研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Font colors - the best colors for reading online are black text on a white or off-white background.
字体颜色——在线阅读的最好颜色组合是黑色文本，白色背景。
After the modification, the font colors of various characters show the characteristics of a sine wave.
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。
This time, when you look at the output HTML files, you will see the font changed and the new font colors for the "Important" and "Caution" parts.
这一次，当您查看输出的HTML文件时，您将看到更改后的字体和“Important”和“Caution”部分的新字体颜色。
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