数米粒，matlab编程实现图片中米粒边缘的提取，然后实现连通域的标记，最后统计连通域个数-Number of rice, matlab programming rice extract picture edges, then realize marking connected domain, the number of connected domains final statistics

连通区域边缘检测，圆形度计算，圆形物体的检测(Edge detection in connected regions, circle degree calculation)