该代码是图像边缘检测中获得链码的代码,img代表输入图像,Array用来存储链码,x0y0是初始点的坐标,xy用来存储最终点的坐标,Ratio用来计算链码的曲率,代码中有注释相信大家可以看得懂,最近正在写关于相位编码的代码，如果有研究这方面东东的朋友可以多交流-The code is the image edge detection to obtain the chain code of the code, img representative of the input image, Array used to store the chain code, x0y0 the initial point coordinates, xy is used to store the coordinates of the end point, Ratio used to calculate the curvature of the chain code, there are comments in the code to understand that we can see, most recently on the phase encoding is writing the code, if there are studies in this regard may be more exchanges Dongdong friend