代码摘自 Record Video With Python + OpenCV 3 on OSX ,取消了原文的视频翻转,汉化了注释。代码如下,测试成功。按Q结束程序。
import numpy as np
import cv2
cap = cv2.VideoCapture(0) # 从摄像头中取得视频
# 获取视频播放界面长宽
width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH) + 0.5)
height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT) + 0.5)
# 定义编码器 创建 VideoWriter 对象
fourcc = cv2.VideoWriter_fourcc(*'mp4v') # Be sure to use the lower case
out = cv2.VideoWriter('output.mp4', fourcc, 20.0, (width, height))
while(cap.isOpened()):
#读取帧摄像头
ret, frame = cap.read()
if ret == True:
#输出当前帧
out.write(frame)
cv2.imshow('My Camera',frame)
#键盘按 Q 退出
if (cv2.waitKey(1) & 0xFF) == ord('q'):
break
else:
break
# 释放资源
out.release()
cap.release()
cv2.destroyAllWindows()
转载请注明出处
《基于OpenCV实现Python 3.4获取并显示摄像头功能》https://www.ywlib.com/archives/40.html (from 一闻自习室)