基于傅里叶域内的研究水印，实现其鲁棒性。数字水印技术，能有效的维护数字作品及数据的安全性，是信息隐藏领域的一个重要分支，它与信息安全、信息隐藏、数据加密等均有密切关系。数字水印有多个研究方向，主要集中在图像水印方面。基于傅立叶域的数字图像水印技术，是一种常见的水印算法，它具有算法简单，执行效率高，能有效对抗攻击的特点。-Research based on Fourier domain watermarking, to achieve its robustness. Digital watermarking technology to digital works and the effective maintenance of data security, information hiding is an important branch of the field, it is with information security, information hiding, data encryption Dengjun closely related. Digital watermarking has a number of research directions, mainly in terms of image watermarking. Fourier domain-based digital image watermarking technology, is a common watermarking algorithm, which algorithm is simple, the implementation of efficient, effective against attack characteristics.