说明：   本系统设计基于GUI图形界面，用matlab语言编写代码，实现功能包括图象的读取、显示，直方图均衡化，中值滤波、均值滤波，拉普拉斯算子增强，边缘检测（包括LoG边缘检测、Canny边缘检测）等
(The system design based on GUI graphical interface, using matlab language to write code, to achieve the function, including image read, display, histogram equalization, median filtering, mean filtering, Laplacian operator enhancement, edge detection (including LoG Edge detection, Canny edge detection) and so on)