利用MATLAB读取视频，并将视频帧图像保存下来；利用直方图差分法进行视频场景分割；(Read the video, and save the video frame image)

用直方图均衡化方法对雾霾天气的车牌图像进行增强，经过预处理后定位车牌位置，分割车牌字符(Histogram equalization method is used to enhance the license plate image in haze weather. After pre-processing, the license plate position is located and the license plate character is segmented.)