ros下usb摄像头视频发布

在ubuntu下读取USB摄像头视频，通过cv_bridge转化后在ros下以节点/camera/image形式发布

#!/usr/bin/env python
from distutils.core import setup
from catkin_pkg.python_setup import generate_distutils_setup

d = generate_distutils_setup（）

d[‘packages‘] = [‘cv_bridge‘]
d[‘package_dir‘] = {‘‘ : ‘python/‘}

setup（**d）

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-12-22 18:58  cv_ws\
     文件          98  2018-09-18 12:30  cv_ws\.catkin_workspace
     文件          89  2018-10-30 21:01  cv_ws\reademe.txt
     目录           0  2018-10-31 10:44  cv_ws\.vscode\
     文件         176  2018-10-31 10:44  cv_ws\.vscode\settings.json
     文件         688  2018-10-31 10:44  cv_ws\.vscode\c_cpp_properties.json
     目录           0  2018-10-30 20:50  cv_ws\src\
     文件          50  2018-12-22 18:58  cv_ws\src\CMakeLists.txt
     目录           0  2018-10-30 20:50  cv_ws\src\.vscode\
     文件         688  2018-10-30 20:51  cv_ws\src\.vscode\c_cpp_properties.json
     文件         176  2018-10-30 20:50  cv_ws\src\.vscode\settings.json
     目录           0  2018-09-18 11:53  cv_ws\src\video_transport_tutorial\
     文件        2338  2017-08-25 11:56  cv_ws\src\video_transport_tutorial\package.xml
     文件        7440  2017-08-25 11:57  cv_ws\src\video_transport_tutorial\CMakeLists.txt
     目录           0  2018-09-18 11:53  cv_ws\src\image_transport_tutorial\
     文件         495  2017-08-23 14:06  cv_ws\src\image_transport_tutorial\resized_plugins.xml
     文件         923  2017-08-23 14:06  cv_ws\src\image_transport_tutorial\package.xml
     文件        1914  2017-08-27 06:47  cv_ws\src\image_transport_tutorial\CMakeLists.txt
     目录           0  2018-09-18 11:53  cv_ws\src\cv_bridge\
     文件         227  2017-08-06 12:59  cv_ws\src\cv_bridge\setup.py
     文件         191  2017-08-06 12:59  cv_ws\src\cv_bridge\rosdoc.yaml
     文件        1356  2017-08-06 12:59  cv_ws\src\cv_bridge\package.xml
     文件         930  2017-08-06 12:59  cv_ws\src\cv_bridge\CMakeLists.txt
     文件       13152  2017-08-06 12:59  cv_ws\src\cv_bridge\CHANGELOG.rst
     目录           0  2018-09-18 11:53  cv_ws\src\video_transport_tutorial\src\
     文件         752  2018-10-30 20:57  cv_ws\src\video_transport_tutorial\src\video_subscriber.cpp
     文件        1104  2018-09-18 12:34  cv_ws\src\video_transport_tutorial\src\video_publisher.cpp
     目录           0  2017-08-25 11:46  cv_ws\src\video_transport_tutorial\include\
     目录           0  2017-08-27 06:26  cv_ws\src\image_transport_tutorial\src\
     文件         819  2017-08-23 14:06  cv_ws\src\image_transport_tutorial\src\resized_subscriber.cpp
     文件        1334  2017-08-23 14:06  cv_ws\src\image_transport_tutorial\src\resized_publisher.cpp
............此处省略78个文件信息