Python 2.7 读取网络摄像机时出现Ubuntu OpenCV错误

我可以在Windows中运行相同的程序。我可以在Ubuntu 16.04中使用lsusb看到我的相机，64位。该摄像机为OSVR红外摄像机

我的节目是

import numpy as np
import cv2
camera = cv2.VideoCapture(0)
while(True):
    # Capture frame-by-frame
    ret, frame = camera.read()

    cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

    cv2.imshow('camera', frame)

    #    k = cv2.waitKey(30)

# When everything done, release the capture
camera.release()
cv2.destroyAllWindows()

结果是：

cwu@ubuntu:~/project/osvrCamera$ python test.py 
select timeout
select timeout
OpenCV Error: Assertion failed (!buf.empty() && buf.isContinuous()) in imdecode_, file /tmp/binarydeb/ros-kinetic-opencv3-3.1.0/modules/imgcodecs/src/loadsave.cpp, line 490
Traceback (most recent call last):

File "test.py", line 8, in <module>
ret, frame = camera.read() 
cv2.error: /tmp/binarydeb/ros-kinetic-opencv3-3.1.0/modules/imgcodecs/src/loadsave.cpp:490: error: (-215) !buf.empty() && buf.isContinuous() in function imdecode_

cwu@ubuntu：~/project/osvrCamera$python test.py
选择超时
选择超时
OpenCV错误：imdecode铹文件/tmp/binarydeb/ros-kinetic-opencv3-3.1.0/modules/imgcodecs/src/loadsave.cpp第490行中的断言失败（！buf.empty（）&&buf.isContinuous（））
回溯（最近一次呼叫最后一次）：
文件“test.py”，第8行，在
ret，frame=camera.read（）
cv2.error:/tmp/binarydeb/ros-kinetic-opencv3-3.1.0/modules/imgcodecs/src/loadsave.cpp:490:error:（-215）！函数imdecode中的buf.empty（）和&buf.isContinuous（）_

首先检查框架是否为

空（）

（当您尝试转换/显示它时，可能cam/框架未完全初始化：

import numpy as np
import cv2
camera = cv2.VideoCapture(0)
while(True):
    # Capture frame-by-frame
    ret, frame = camera.read()
    if not frame.empty():
       cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

       cv2.imshow('camera', frame)

    #    k = cv2.waitKey(30)

# When everything done, release the capture
camera.release()
cv2.destroyAllWindows()