将bmp位图转为OpenCv的ipl格式，这种转换是最经常用到的。可是有很多人不知道怎么转，我在这里特意实现了它。供参考-Bmp bitmap will be converted to the OpenCv ipl format, this conversion is the most frequently used. But there are a lot of people do not know how to turn, I am here specifically to achieve