【摘要】 随着计算机网络和多媒体技术的发展，数字水印技术正逐渐成为多媒体版权保护的一种有效途径。数字水印处理的目的在于将秘密的个人信息隐含于数字多媒体信号中，以保护其知识产权或证明其真实可靠性。提出了一种基于彩色空间的彩色图象水印处理方法。输入的彩色图象首先由通常的ＲＧＢ空间变换到ＹＣｂＣｒ彩色空间，在ＹＣｂＣｒ空间中给出了四种嵌入水印的方案和相应的水印检测算法。最后，实验证明了算法的有效性。更多还原

【Abstract】 With the development of computer network and multimedia techniques, digital watermarking is becoming an efficient approach to copyright protection of digital multimedia. Digital watermarking technique embeds copyright information into multimedia signal in order to perform copyright protection and authentication of multimedia. In this paper, a watermarking algorithm of color image is proposed. An input color image is first converted from RGB color space to YCbCr space, and then watermark is embedded with four schemes. The corresponding verification algorithm is also given. Experimental results show the efficiency of the algorithm against some attacks such as JPEG, vector median filter and mean filter.更多还原