You could create a proxy and serve the images via that but don't expect the loading times to be the same - it will be slower. If you're curious, I did write a post about doing this a long time back. Even though it's old the basic concept should still hold up.
★ I jump on these forums in my free time to help and share some insights. Not looking to be hired, and not looking for work. http://freakdesign.com.au ★