backlink question

Disclaimer: I used the search function and could not find this exact information. Backlinks are links that link to your site. Does posting a picture from your site, to a forum thread count as a backlink? Like say if you link to yousite.com/uploads/randompic.jpg Does that count as a backlink?

Hello Everybody! Hope everyone of you is doing well. I just started link building for my blog and was wondering how backlinks are counted in eyes of G? Especially about profile backlinks, my question is that if I get a link from say www [dot] site [dot] com / user=155 and after a couple of days...