User blog comment:Deathmanstratos/CoDWiki News - July 7, 2014/@comment-1187559-20140707184327/@comment-1784397-20140708171043

ENB itself doesn't mean anything as an acronym, but what they do is apply a lot of pre and post processing visual effects (Graphic enhancing). They can alter certain things, focus on them, or enhance everything. You need pretty good computers to run most.