混沌函数对图像加密的一种方法。利用了R．Devany混沌理论构造了一种混沌动力系统，并用所生成的混沌序列对图像进行加密．由于混沌动力系统有很强的不可预测性，因此，混沌序列对图像加密能更好的抵御各种攻击．此方法具有加密速度快、安全性高特点．,Chaotic function of a method of image encryption. Use of R. Chaos Theory Construction Devany a chaotic dynamical systems, and chaotic sequence generated by encryption of images. Chaotic dynamical system due to the unpredictability of a strong, therefore, chaotic sequence of image encryption can better withstand all kinds of attacks. This method is fast encryption, high security features.