基于混沌的图像加密技术，利用拼图策略，偶和映射格子(Chaos based image encryption technology, using jigsaw strategy, even and mapping lattice.)

非线性动力学、分岔 Matlab 程序实现，绘出系统状态变量随参数变化分岔图，绘图参数对应的系统各周期及混沌状态的时间历程图、相轨迹图、Poincare映射图(Nonlinear dynamics and bifurcation are realized by MATLAB program. The bifurcation diagram of system state variable with parameter variation

帐篷映射图像 帐篷映射是非常实用的混沌系统 能产生随机序列(Tent mapping is a very practical chaotic system that can generate random sequences)