基于混沌系统的图像加密算法，先采用Arnold猫映射进行像素点位置置乱，然后对置乱后的图像的像素值进行Liu混沌加密或者Lorenz混沌加密。-Chaotic systems based on image encryption algorithm, first using Arnold cat map for the location of pixel scrambling, and then scrambling image pixel values Liu chaotic encryptio

对一幅图像进行扩散处理，改变图像中每一像素点的值-Image of a diffusion process, change the value of each pixel of the image