水印的嵌入和提取算法都是公开的，公钥系统取代了普通的水印密钥。
The algorithms for the watermark embedding and extracting are both open, and public key cryptosystem is utilized instead of common watermark key.
算法包括水印嵌入和水印提取与检测两个部分。
The algorithm mainly consists of two basic subroutines: watermark embedding and watermark extraction and detection.
提出一种基于二维经验模式分解(BEMD)的图像水印嵌入算法，完成水印的嵌入和提取。
This paper proposes an image processing method which is based on Bidimensional Empirical Mode Decomposition (BEMD). BEMD is applied in watermark embedding and extraction.
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