OpenCV Error: (-215)size.width>0 && size.height>0 in function imshow
This error message
error: (-215)size.width>0 && size.height>0 in function imshow
simply means that imshow() is not getting video frame from input-device. You can try using
cap = cv2.VideoCapture(1) instead of
cap = cv2.VideoCapture(0) & see if the problem still persists.
I have the same problem, fix the ret in capture video
import numpy as npimport cv2# Capture video from filecap = cv2.VideoCapture('video1.avi')while True: ret, frame = cap.read() if ret == True: gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY) cv2.imshow('frame',gray) if cv2.waitKey(30) & 0xFF == ord('q'): break else: breakcap.release()cv2.destroyAllWindows()
I had this problem.
Solution: Update the path of the image.
If the path contains (for example: \n or \t or \a) it adds to the corruption. Therefore, change every back-slash "\" with front-slash "/" and it will not make create error but fix the issue of reading path.
Also double check the file path/name. any typo in the name or path also gives the same error.