import cv2
import numpy
as np
cap
=cv2
.VideoCapture
(0,cv2
.CAP_DSHOW
)
cap
.open(0)
while cap
.isOpened
():
flag
,frame
=cap
.read
()
if not flag
:
break
key_pressed
=cv2
.waitKey
(60)
print('键盘上输入的是',key_pressed
)
frame
=cv2
.resize
(frame
,(600,600))
frame
=cv2
.Canny
(frame
,100,200)
frame
=np
.dstack
((frame
,frame
,frame
))
cv2
.imshow
('my computer',frame
)
if key_pressed
==27:
break
cap
.release
()
cv2
.destroyAllWindows
()
需要安装opencv-python库和numpy库
看不懂的留言吧
