用MATLAB编的边缘检测算子，包括Robert算子、sobel算子、prewitt算子。自己编写的，有利于初学者理解边缘检测算子的具体实现过程，将结果与MATLAB函数实现的结果作了比较。-MATLAB code with the edge detection operator, including the Robert operator, sobel operator, prewitt operator. I have written will help beginners to understand the specific edge detection operator implementation process to achieve the results with the results of MATLAB functions are compared.