发生这种情况的各种问题,但不会出现这种错误情况。
此代码在Linux上有效,在Windows10 OpenCV 3.4.2、64位-Python 3.6上失败,通过“ pip3 install opencv-python”安装
在Windows上失败,并显示以下错误消息。
如果我删除“ cv2.set()”作为水平和垂直尺寸,则可以正常工作,但分辨率不是我想要的
我的目标是从默认图像尺寸更改为更大尺寸。
v=3.4.2
Camera H=480, W=640
Camera H=480, W=640
[ WARN:0] videoio(MSMF): OnReadSample() is called with error status: -1072875855
[ WARN:0] videoio(MSMF): async ReadSample() call is failed with error status: -1072875855
[ WARN:1] videoio(MSMF): can't grab frame. Error: -1072875855
[ WARN:1] videoio(MSMF): can't grab frame. Error: -2147483638
这是Python代码
import cv2
print("v=%s" % cv2.__version__)
cap = cv2.VideoCapture(0, cv2.)
h = cap.get( cv2.CAP_PROP_FRAME_HEIGHT )
w = cap.get( cv2.CAP_PROP_FRAME_WIDTH )
print("Camera H=%d, W=%d" % (h,w) )
# If I remove these two lines it works but is stuck at 640x480
cap.set( cv2.CAP_PROP_FRAME_HEIGHT, 10000 )
cap.set( cv2.CAP_PROP_FRAME_WIDTH, 10000 )
h = cap.get( cv2.CAP_PROP_FRAME_HEIGHT )
w = cap.get( cv2.CAP_PROP_FRAME_WIDTH )
print("Camera H=%d, W=%d" % (h,w) )
while(True):
if cv2.waitKey(1) & 0xFF == ord('q'):
break
ret, frame = cap.read()
if ret:
cv2.imshow('frame',frame)
cap.release()
cv2.destroyAllWindows()
当年话下
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