$ sudo apt-get update
$ sudo apt-get install libgtlimageio0.8 

libgtlimageio0.8 is installed in your system.

Make ensure the libgtlimageio0.8 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libgtlimageio0.8 *

You will get with libgtlimageio0.8 package name, version, architecture and description in a table

libgtlimageio0.8 package basic information: