安装opencv

python使用opencv
把opencv编译的cv2.so和原始的cv.py拷贝到python的安装目录
/usr/lib/python2.7/dist-packages

cp opencv_dir/build/lib/cv2.so /usr/lib/python2.7/dist-packages
cp opencv_dir/modules/python/src2/cv.py /usr/lib/python2.7/dist-packages