根据德布鲁意序列，编写的MATLAB代码，生成伪随机序列，继而转化为图片，图片中一定大小的图像块与其他任何相同大小的图像块都不同。-According to the de Bruges sequence, the MATLAB code is written to generate a pseudo-random sequence, which is then transformed into a picture in which a certain size of the image block is different　any other image block of the same size.