中文摘要：

设计了一种基于模糊隶属函数的可见水印算法。该方法通过定义隶属度函数建立起和遮蔽图像相关的融合系数，每种像素的融合系数不相同，克服了单一融合系数易非法消除的问题。该方法可以无损恢复载体图像。其具有自恢复性，可以在限制非法用户使用图像的同时，为合法用户提供和原始图像完全一致的信息。通过对遮蔽子图像RH加密运用，将一位错扩散到整个图像中。非法用户在没有密钥的情况下，无法恢复出载体图像，安全性高，具有广阔的应用前景。

英文摘要：

A lossless and subordination degree. The visible watermarking algorithm is proposed based on the function of fuzzy fused coefficients areacquired based on the function of subordination degree. The fused coefficients are vary each other, so this method can overcome the shortcoming of single fused coefficients. Because of self-recovery, it offers the original data to the validated user. The Hash function of RH arithmetic operator is constructed by Rijndael encryption algorithm. By using this kind of arithmetic operato, the 1 bit error can be spread to all image, it is shown that a wide prospect for this algorithm can guarantee the quality of the image and the safety of the watermark.