通过对现有的盲数字水印算法的研究，本文提出一种新颖的基于分数阶小波变换(FRWT)和QR分解的盲数字 图像水印算法，相比于现有的基于DWT域数字图像水印方法，该方法兼具分数阶小波变换(FRWT)和DWT的优点，对数字水 印处理具有更高的灵活性。仿真结果表明嵌入水印后的宿主图像的峰值信噪比均高于40dB，充分说明该算法不仅可以很好 地平衡水印的不可见性，而且对几何攻击具有较好的鲁棒性。

This paper presents a novel method based on the blind digital image watermarking methods of FRWT and QR decomposition. Compared with the existing DWT domain digital image watermarking method, this method combines the advantages of both FRWT and DWT, which has better flexibility. The simulation results show that the PSNR value of the host image embedded with the watermark is higher than 40dB, which fully demonstrates that the algorithm can not only balance the imperceptibility of the watermark, but also has better robustness against geometric attacks.