attribute error: none type object has no shape

Question

我无法运行此脚本成功。我已经尝试运行通过命令行在传递参数和不传递参数的同时使用它。我也试过运行在 virtualenv 中无济于事。我怀疑我缺少 PiCamera 工作的驱动程序

# if a video path was not supplied, grab the reference
# to the webcam
if not args.get("video", False):
    camera = cv2.VideoCapture(0)

# otherwise, grab a reference to the video file
else:
    camera = cv2.VideoCapture(args["video"])

# keep looping
while True:
    # grab the current frame
    (grabbed, frame) = camera.read()

错误：

Traceback (most recent call last):
  File "/home/pi/ball-tracking/ball_tracking.py", line 48, in <module>
    frame = imutils.resize(frame, width=600)
  File "/usr/local/lib/python2.7/dist-packages/imutils/convenience.py"`enter code here`, line 45, in resize
    (h, w) = image.shape[:2]
AttributeError: 'NoneType' object has no attribute 'shape'

Answer 1

'nonetype' 对象引用了未传递给调整大小方法的帧。

这可以通过在运行代码之前加载预安装的 v4l2 驱动程序来解决：

sudo modprobe bcm2835-v4l2

attribute error: none type object has no shape

attribute error: none type object has no shape

c++

python

opencv

numpy

computer-vision