linux下通过v4l2接口获取摄像头数据（yuyv），并转换为rgb24，再保存为24位bmp。最后在lcd上显示（rgb32）。-linux v4l2 interface to get through the camera data (yuyv), and converted to rgb24, and then save it as a 24 bmp. Finally in the lcd display (rgb32).

通过v4l2实现usb摄像头的数据采集,保存为一张bmp图片-Usb camera v4l2 achieved through data collection, save it as a bmp picture

android底层调用摄像头，并将摄像头采集的yuyv数据保存为rgb8，即256灰度图。android上面接口提供一个保存地址和名字，如"/Sdcard/rgb8.bmp"-android underlying call camera, and the camera acquisition yuyv data is saved as rgb8, that is 256 grayscale. android interface provides a preservation above addr