/usr/ is in libopencv-highgui-dev 2.4.9.1+dfsg-1.5ubuntu1.
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/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libopencv_highgui.a
/usr/include/
/usr/include/opencv2/
/usr/include/opencv2/highgui/
/usr/include/opencv2/highgui/highgui_c.h
/usr/include/opencv2/highgui/highgui.hpp
/usr/include/opencv2/highgui/cap_ios.h
/usr/include/opencv2/highgui/ios.h
/usr/share/
/usr/share/doc/
/usr/share/doc/libopencv-highgui-dev/
/usr/share/doc/libopencv-highgui-dev/copyright
/usr/share/doc/libopencv-highgui-dev/README.Debian
/usr/lib/x86_64-linux-gnu/libopencv_highgui.so
/usr/share/doc/libopencv-highgui-dev/changelog.Debian.gz