Python+OpenCV采集本地摄像头的视频

本文实现了用Python和OpenCV配合，调用本地摄像头采集视频，基本上函数的话看opencv的官方文档就Ok了(The OpenCV Reference Manual  Release 2.4.7.0)

上代码：

import cv2
import cv2.cv

def getCam():
    window_name='show image'
    cv2.namedWindow(window_name,cv2.WINDOW_NORMAL)
    video_cap_obj=cv2.VideoCapture(0)
    if video_cap_obj==None:
        print('video caoture error')
    if video_cap_obj.open(0)==False:
        print('open error')
    while True:
        retval,image=video_cap_obj.read()
        cv2.cv.ShowImage(window_name,cv2.cv.fromarray(image))
        if cv2.waitKey(10)==27:
            break
    video_cap_obj.release()
    
if __name__=='__main__':
    getCam()

效果如图：