Abstract: The parameters' choosing of the algorithm is one of the key problems of watermarking designing. Choosing different parameters havse significant effect upon the algorithm's effectiveness. In this paper, a new method of parameters' choosing using evolutionary computation is proposed, and it is proved to be useful to improve the robustness of watermarking without decreasing its fidelity

Key words: Information hiding; Digital watermarking; Evolutionary computation

摘要： 数字水印算法中相关参数的选择是水印算法设计的一个关键问题。不同的参数选取，将直接影响到算法的有效性。该文给出一种采用演化计算进行水印参数有效选择的方法，实验结果表明，这种方法在提高水印健壮性的同时保证保真度。

关键词: 信息隐藏；数字水印；演化计算