.htaccess Rewrite URL Help

[WorldCraft]

Hi. Can I rewrite urls that point to image files such as.

http://mywebsite.com/images/1.png
http://mywebsite.com/images/2.png
http://mywebsite.com/images/x.png

So that they will appear as:

http://mywebsite.com/images/1/
http://mywebsite.com/images/2/
http://mywebsite.com/images/x/

And so on?

Basically so that the file extension will not appear in the URL