在Python中使用opencv读取视频时出错

无法在Python3中使用openCV读取视频文件

代码：

错误：

文件，第4行 cap=cv2.VideoCapture'C:\Users\u266772\Desktop\Video\video2.mp4' ^ SyntaxError:unicode错误“UnicodeScape”编解码器无法解码位置2-3中的字节：截断\UXXXXXXXX转义

---

只需更改写入文件路径的方式

import numpy as np
import cv2

cap = cv2.VideoCapture('C:\\\Users\\\u266772\\\Desktop\\\Video\\\video2.mp4')

while(cap.isOpened()):
    ret, frame = cap.read()

    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

    cv2.imshow('frame',gray)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()

---

可能是重复的谢谢。代码中的以下更改生效：cap=cv2.VideoCaptureC:/Users/u266772/Desktop/Video/video2.mp4

import numpy as np
import cv2

cap = cv2.VideoCapture('C:\\\Users\\\u266772\\\Desktop\\\Video\\\video2.mp4')

while(cap.isOpened()):
    ret, frame = cap.read()

    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

    cv2.imshow('frame',gray)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()