/usr/ is in libopenjp2-7-dev 2.3.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/openjpeg-2.3/
/usr/include/openjpeg-2.3/openjp3d.h
/usr/include/openjpeg-2.3/openjpeg.h
/usr/include/openjpeg-2.3/opj_config.h
/usr/include/openjpeg-2.3/opj_stdint.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/openjpeg-2.3/
/usr/lib/x86_64-linux-gnu/openjpeg-2.3/OpenJPEGConfig.cmake
/usr/lib/x86_64-linux-gnu/openjpeg-2.3/OpenJPEGTargets-none.cmake
/usr/lib/x86_64-linux-gnu/openjpeg-2.3/OpenJPEGTargets.cmake
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libopenjp2.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/libopenjp3d.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/libopenjpip.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libopenjp2-7-dev/
/usr/share/doc/libopenjp2-7-dev/copyright
/usr/include/openjpeg-2.1
/usr/lib/x86_64-linux-gnu/libopenjp2.so
/usr/lib/x86_64-linux-gnu/openjpeg-2.1
/usr/share/doc/libopenjp2-7-dev/changelog.Debian.gz