/usr/ is in opencv-data 2.4.8+dfsg1-2ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/opencv/
/usr/share/opencv/haarcascades/
/usr/share/
/usr/share/doc/
/usr/share/doc/opencv-data/
/usr/share/doc/opencv-data/copyright
/usr/share/doc/opencv-data/changelog.Debian.gz
/usr/share/opencv/haarcascades/haarcascade_mcs_nose.xml
/usr/share/opencv/haarcascades/haarcascade_fullbody.xml
/usr/share/opencv/haarcascades/haarcascade_eye.xml
/usr/share/opencv/haarcascades/haarcascade_lowerbody.xml
/usr/share/opencv/haarcascades/haarcascade_mcs_rightear.xml
/usr/share/opencv/haarcascades/haarcascade_mcs_leftear.xml
/usr/share/opencv/haarcascades/haarcascade_mcs_mouth.xml
/usr/share/opencv/haarcascades/haarcascade_mcs_eyepair_big.xml
/usr/share/opencv/haarcascades/haarcascade_frontalface_alt2.xml
/usr/share/opencv/haarcascades/haarcascade_frontalface_alt_tree.xml
/usr/share/opencv/haarcascades/haarcascade_mcs_lefteye.xml
/usr/share/opencv/haarcascades/haarcascade_upperbody.xml
/usr/share/opencv/haarcascades/haarcascade_mcs_righteye.xml
/usr/share/opencv/haarcascades/haarcascade_frontalface_default.xml
/usr/share/opencv/haarcascades/haarcascade_smile.xml
/usr/share/opencv/haarcascades/haarcascade_righteye_2splits.xml
/usr/share/opencv/haarcascades/haarcascade_mcs_eyepair_small.xml
/usr/share/opencv/haarcascades/haarcascade_frontalface_alt.xml
/usr/share/opencv/haarcascades/haarcascade_eye_tree_eyeglasses.xml
/usr/share/opencv/haarcascades/haarcascade_mcs_upperbody.xml
/usr/share/opencv/haarcascades/haarcascade_profileface.xml
/usr/share/opencv/haarcascades/haarcascade_lefteye_2splits.xml
/usr/share/opencv/lbpcascades/
/usr/share/opencv/lbpcascades/lbpcascade_profileface.xml
/usr/share/opencv/lbpcascades/lbpcascade_silverware.xml
/usr/share/opencv/lbpcascades/lbpcascade_frontalface.xml