如何讀取視頻文件,我讀AVI文件usinh蟒蛇2.7和opencv2.4.I正在使用Windows 10.My示例代碼使用python和opencv的
import numpy as np
import cv2
cap = cv2.VideoCapture('videos/wa.avi')
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()
當我運行視頻顯示,但該程序沒有錯誤
OpenCV Error: Assertion failed (size.width>0 && size.height>0) in cv::imshow, file ..\..\..\..\opencv\modules\highgui\src\window.cpp, line 261
Traceback (most recent call last):
File "C:/Users/Emmanu/PycharmProjects/VideoEventDetection/test.py", line 11, in <module>
cv2.imshow('frame',frame)
cv2.error: ..\..\..\..\opencv\modules\highgui\src\window.cpp:261: error: (-215) size.width>0 && size.height>0 in function cv::imshow
什麼我做錯結束?我如何糾正呢?
我upvoted你的問題,因爲我覺得這個例子基本一樣強大。謝謝。 – MouIdri