图像置乱技术的目的是将图像噪声化,使得图像的能量尽量地均匀分布。由于图像置乱可选取不同的方法,同样的方法可以设置不同的参数,组合起来的结果会千差万别,因此,将置乱作为图像加密的一种方法从安全的角度考虑是可行的。 Hibert图像置乱。(The purpose of image scrambling technique is to make the image noise, so that the image energy can be distributed evenly as far as possible. Because the image scrambling can select different methods, the same method can set different parameters, and the combined results will vary greatly. Therefore, it is feasible to take scrambling as a method of image encryption from a security point of view. Hibert image scrambling.)