Link OpenCV 4 into your Python 3 virtual environment

# Let’s create a symbolic link from the OpenCV install directory to our virtual environment:

$ cd ~/.virtualenvs/cv/lib/python3.5/site-packages/
$ ln -s /usr/local/lib/python3.5/site-packages/cv2.cpython-35m-x86_64-linux-gnu.so cv2.so
$ cd ~

OSError: libcuda.so.1: cannot open shared object file:

export LD_LIBRARY_PATH="/path/to/sdk/lib"

Python Lib. 문제

python3 패키지가 설치되는 경로를 확인할 수 있다.

import site
site.getsitepackages()
>> ['/usr/local/lib/python3.6/dist-packages', '/usr/lib/python3/dist-packages', '/usr/lib/python3.6/dist-packages']

패지명.so 파일 복사 cv2.cpython-36m-x86_64-linux-gnu.so

gcc default include path 확인 방법

echo | gcc -v -x c -E - echo | gcc -v -x c++ -E -

제대로 라이브러리를 가져오는지 알아보려면

sudo ldconfig -v

9. 에러 처리

apt-get install -y libcupti-dev #에러발생 "/sbin/ldconfig.real: /usr/lib/nvidia-375/libEGL.so.1 is not a symbolic link"

libcudnn.so.5: cannot open shared object file

• LD_LIBRARY_PATH="/usr/local/cuda-8.0/targets/x86_64-linux/lib #ldconfig -v 로해당라이브러리위치확인
• export LD_LIBRARY_PATH # 확인 : echo $LD_LIBRARY_PATH

for fn in libpcl_*.so.1.9.1; do sudo ln -s $fn ${fn%.1.9.1}.1.7; done