调整轮廓滤波器的平滑度和轮廓的最小域值: adjust smoothness of contour filter and minimum threshold for contours
边缘: 1.(沿边的部分) border; edge; fringe; margin; rim; limb; skirt; verge; brink; periphery 短语和例子经济破产的边缘 the verge of economic bankruptcy; 悬崖的边缘 the edge of a precipice; 森林的边缘 the fringe of a forest
