ubuntu 下安装摄像头驱动

sudo apt-get install cheese

sudo apt-get install camorama

然后可以打开应用cheese，观察可以得到图像。

也可以通过代码获取图像。python代码如下：

import cv2.cv as cv  

import time  

if __name__ == '__main__':  

    cv.NamedWindow("camera",1)  
        capture = cv.CaptureFromCAM(0)             
    num = 0;  
    while True:  
        img = cv.QueryFrame(capture)  
        cv.ShowImage("camera",img)  

        key = cv.WaitKey(10)  
        if key == 27:  
        break  
        if key == ord(' '):  
        num = num+1  
        filename = "frmaes_%s.jpg" % num  
        cv.SaveImage(filename,img)  


    del(capture)  
    cv.DestroyWindow("camera")