YOLO설치전 Opencv3.2 설치

1. OpenCV 설치

apt-get install libopencv-dev libcv-bridge-dev

# python3
conda install -c https://conda.binstar.org/menpo opencv3 #conda install -c menpo opencv3=3.2.0
pip3 install opencv_python

#pytbon2
pip install opencv_python

# apt-get install libgtk2.0-0 #opencv에러시

2. python-opencv 설치

pip install opencv-python

3. ROS용 cv-bridge설치

sudo apt-get install ros-(ROS version name)-cv-bridge

sudo apt-get install ros-(ROS version name)-vision-opencv

3-1 ROS용 cv-bridge설치 for python3

ROS + python3에서 cv-bridge문제 있는 듯

# `python-catkin-tools` is needed for catkin tool
# `python3-dev` and `python3-catkin-pkg-modules` is needed to build cv_bridge
# `python3-numpy` and `python3-yaml` is cv_bridge dependencies
# `ros-kinetic-cv-bridge` is needed to install a lot of cv_bridge deps. Probaply you already have it installed.
sudo apt-get install python-catkin-tools python3-dev python3-catkin-pkg-modules python3-numpy python3-yaml ros-kinetic-cv-bridge


# Create catkin workspace
mkdir catkin_workspace
cd catkin_workspace
catkin init

# Instruct catkin to set cmake variables
catkin config -DPYTHON_EXECUTABLE=/usr/bin/python3 -DPYTHON_INCLUDE_DIR=/usr/include/python3.5m -DPYTHON_LIBRARY=/usr/lib/x86_64-linux-gnu/libpython3.5m.so

# Instruct catkin to install built packages into install place. It is $CATKIN_WORKSPACE/install folder
catkin config --install

# Clone cv_bridge src
git clone https://github.com/ros-perception/vision_opencv.git src/vision_opencv

# Find version of cv_bridge in your repository
apt-cache show ros-kinetic-cv-bridge | grep Version
    Version: 1.12.8-0xenial-20180416-143935-0800

# Checkout right version in git repo. In our case it is 1.12.8
cd src/vision_opencv/
git checkout 1.12.8
cd ../../

# Build
catkin build cv_bridge

# Extend environment with new package
source install/setup.bash --extend

에러처리

Could not find the following Boost libraries: boost_python3

/usr/lib/x86_64-linux-gnu# ln -s libboost_python-py35.so libboost_python3.so

ImportError: /opt/ros/kinetic/lib/python2.7/dist-packages/cv2.so: undefined symbol: PyCObject_Type

~/.bashrc : PYTHONPATH="/usr/lib/python3.5/site-packages:$PYTHONPATH"

import sys
print(sys.path)

find '/opt/ros/kinetic/lib/python2.7/dist-packages'

remove it : `sys.path.remove('/opt/ros/kinetic/lib/python2.7/dist-packages')`

mv /opt/ros/kinetic/lib/python2.7/dist-packages/cv2.so /opt/ros/kinetic/lib/python2.7/dist-packages/cv2.so~

ImportError: dynamic module does not define module export function (PyInit_cv_bridge_boost)

• python3에서 from cv_bridge.boost.cv_bridge_boost import getCvType시 발생