程序分成两个部分，第一个部分是将原始的彩色图像转化成灰度图，第二个部分是对灰度图进行边缘检测。经过大量的图像测试，检测效果极佳。-The program is divided into two parts, the first part is the original color image into a gray-scale image, the second part of the gray-scale image edge detection. After a lot of image t