有标记的

• Secondly , each region ’ s orientation line is calculated to prejudge the regions that contain the shadow regions , and the regions that contain shadow region are marked . thirdly , the marked region ’ s body color vector is calculated , and it is matched with that in the shadow database , after that , the shadow region can be obtained accurately
  接着计算前景中每个区域的方向角分割线,预判断每个区域中是否含有阴影区域,标记出含有阴影区域的区域,然后对有标记的区域计算其体色向量,和阴影数据库中的体色向量进行匹配运算,精确定位出阴影区域。