/usr/ is in libopencv-imgproc-dev 3.2.0+dfsg-4build2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/opencv2/
/usr/include/
/usr/include/opencv2/imgproc/
/usr/include/opencv2/imgproc/detail/
/usr/include/opencv2/imgproc/detail/distortion_model.hpp
/usr/include/opencv2/imgproc/hal/
/usr/include/opencv2/imgproc/hal/hal.hpp
/usr/include/opencv2/imgproc/hal/interface.h
/usr/include/opencv2/imgproc/imgproc.hpp
/usr/include/opencv2/imgproc/imgproc_c.h
/usr/include/opencv2/imgproc/types_c.h
/usr/include/opencv2/imgproc.hpp
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libopencv_imgproc.a
/usr/share/
/usr/share/doc/
/usr/share/doc/libopencv-imgproc-dev/
/usr/share/doc/libopencv-imgproc-dev/README.Debian
/usr/share/doc/libopencv-imgproc-dev/copyright
/usr/lib/x86_64-linux-gnu/libopencv_imgproc.so
/usr/share/doc/libopencv-imgproc-dev/changelog.Debian.gz