中文说明：基于matlab的JPEG图像压缩编码仿真，我们在JPEG图像压缩原理的基础上，用matlab对标准的灰度图像进行JPEG压缩与重建。
English Description：
Based on the simulation of JPEG image compression coding in MATLAB, we use matlab to compress and reconstruct the standard gray image based on the principle of JPEG image compression.