源代码，可以直接运行，有Canny边缘检测，其中包括高斯滤波，梯度计算，非极大值抑制，边缘跟踪，图像细化包括Rosenfeld和索引表细化，有详细注释. -Including the Gauss filter, gradient calculation, non maxima suppression, edge tracking, image thinning including Rosenfeld and index table refinement, there are detailed