实现JPEG Encoder，可以将BMP档案读入并进行压缩编码 -This is a JPEG enoder, the user can read the bmp file and encode it as a jpg file

利用opencv实现视频读入及逐帧保存 任务一：在上述读入视频程序基础上，将视频逐帧保存为图像（图像名按帧序号命名如1.bmp,2.bmp等）到指定目录（如E:\video-image\) -Using opencv read into the video frame by frame and save