digital watermark algorithm

• 数字水印算法

digital watermark algorithm的用法和样例：

例句

1. A digital watermarking algorithm based on quadtree fractal coding.
   一种基于四叉树分形编码的数字水印算法。
2. The protocol can improve the stealthiness of the text watermarking algorithm.
   依据该规则，提高了已有文本数字水印算法的隐蔽性。