我正在尝试使用免费课程保存摄像机的录像,我说,我需要创建cv2.VideoWriter。我尝试时遇到的问题是:
Traceback (most recent call last):
File ..., line 10, in <module>
writer = cv2.VideoWriter(filename,cv2.VideoWriter_fourcc(*'DVIX'),20,(width,height))
TypeError: a float is required
我的代码:
import cv2
import numpy as np
cap = cv2.VideoCapture(0)
width = cap.get(cv2.CAP_PROP_FRAME_WIDTH)
height = cap.get(cv2.CAP_PROP_FRAME_HEIGHT)
#### THE PROBLEM IS IN THIS LINE ########
writer = cv2.VideoWriter("images/my_super_vid.mp4",cv2.VideoWriter_fourcc(*'DVIX'),20,(width,height))
######################################
while True:
ret, frame = cap.read()
#OPERTAIONS (DRAWING ETC')
writer.write(frame)
cv2.imshow("frame",frame)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
cap.release()
writer.release()
cv2.destroyAllWindows()
我看到了问题,并将其更改为:
writer = cv2.VideoWriter("images/my_super_vid.mp4",cv2.VideoWriter_fourcc(*'DVIX'),float(20),(width,height))
甚至:
writer = cv2.VideoWriter("images/my_super_vid.mp4",cv2.VideoWriter_fourcc(*'DVIX'),20.0,(width,height))
但是在这两次尝试中我都得到了:
Traceback (most recent call last):
File "....", line 10, in <module>
writer = cv2.VideoWriter("images/my_super_vid.mp4",cv2.VideoWriter_fourcc(*'DVIX'),20.0,(width,height))
TypeError: integer argument expected, got float
我不知道如何解决它,我尝试了在互联网上看到的解决方案,但没有一个起作用。有同样的问题
错误是指括号中同一行上的不同值。第一个值必须是浮点数,第二个值必须是int(反之亦然)