blocking site referrer from requesting images using .htaccess

Is it possible to block an ip from accessing images using .htaccess ? i don't have root access. Any url/resources/hint would be helpful.

>>Is it possible to block an ip from accessing images using .htaccess ?

Is it helpful just to block particular IP? Why not just deny the bad guy outta of site?

<Limit GET POST>
order allow,deny
allow from all
deny from 123.45.67.89
</Limit>

i would like to deny the bad guy, but i don't know where it comes. all i can see on my log files is a group of ips requesting specific images incessantly since 2 days, now my site is down.
Thanx for the help, i'm checking now your codes.

>>all i can see on my log files is a group of ips requesting specific images

Then how about the referer fields? It seems that you wanted just to block others from directly linking images from your site. Then start here -> http://www.devshed.com/Talk/Forums/Forum17/HTML/000024.html