中文说明：通过遗传算法选择道路图象分割的最佳阈值，阈值的选择采用最大类间方差的办法，程序运行结果达到相当理想的效果
English Description：
The best threshold of road image segmentation is selected by genetic algorithm. The method of maximum variance between classes is used to select the threshold. The result of program running is quite ideal