/usr/lib/x86_64-linux-gnu/libgdcmjpeg8.so is in libgdcm2-dev 2.4.4-3+deb8u1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libgdcmjpeg8.so.2.4
/usr/lib/x86_64-linux-gnu/libgdcmjpeg8.so.2.4