可以将图形图像，转换成灰度图像，根据灰度图像识别出图像内的高曲率点，以及图形的极值点，得出极值点曲率以及曲率半径-a graphic image can be converted into a grayscale image, a grayscale image according to the high curvature points identified within the image, and the extreme point pattern, derived extrema of