/usr/lib/libgtkimageview.so.0 is in libgtkimageview0 1.6.4+dfsg-0.1ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libgtkimageview.so.0.0.0
/usr/lib/libgtkimageview.so.0.0.0