说明：  通过对影像进行预处理增强道路信息,依据影 像灰度直方图信息,对预处理后的影像进行阈值分割,得到一个包含道路信息的二值影像 进一步使用形态开运算去除细小噪声,同时将一部分粘连在道路上的噪声与道路信息进一步分割 接着结合形态腐蚀和形态重建运算获取影像中主要道路网络信息,并用形态闭运算完善道路网络信息 最后对道路网络信息进行形态细化和一定次数的形态修剪处理,得到单像素宽的道路中心线信息
(By pretreatment enhanced the road image information, based on image histogram information on the pretreatment images after threshold segmentation, a road information contains binary images for further use of morphological opening operation to remove small noise, at the same time part of adhesion on the road noise and road information to further partition and then combine the corrosion morphology and morphological image reconstruction operator to obtain the main road network information, and morphological closing operation to improve the road network in the final information on road network information to form a certain number of detailed and form pruning treatment, get a single pixel wide road centerline information)