开发环境:Ubuntu16.04+Python2.7+Opencv3.0
1.摄像头捕获并存放视频
import cv2
#参数0代表使用笔记本默认摄像头
cap = cv2.VideoCapture(0)
cap.isOpened()
fourcc = cv2.VideoWriter_fourcc(*'XVID')
size = (int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)),int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)))
#参数分别代表(存放视频地址名称;fourcc;镜头速度,20为正常速度;视频尺寸)
out = cv2.VideoWriter('output.avi', fourcc, 20, size)
while(True):
ret, frame = cap.read()
out.write(frame)
cv2.imshow('frame',frame)
if cv2.waitKey(1) & 0xFF == ord('q'): #按‘q’键停止
break
# 释放摄像头
cap.release()
cv2.destroyAllWindows()
2.读取本地视频
import cv2
cap = cv2.VideoCapture('output.avi') #参数0代表使用笔记本默认摄像头
while(True):
ret, frame = cap.read()
cv2.imshow('frame',frame)
if cv2.waitKey(1) & 0xFF == ord('q'): # 按‘q’键停止
break
# 释放摄像头
cap.release()
cv2.destroyAllWindows()