Originally Posted by rayhipkiss

If you are unable to boot the phone normally then you won't be able to retrieve the photo's.
You could try going into recovery mode and performing a Wipe data/Factory restore to see if the phone boots normally again. This will not delete your photos as long as they are stored on the internal SD storage. To enter recovery mode press Volume UP + Home + Power button and wait for the Galaxy logo to appear then release. You can use the volume keys to navigate and the Home key to select.
There is a way for you to repair the phone yourself by flashing a firmware using Odin so you can boot the phone normally and retrieve the pictures. The procedure is quite simple and safe to do (if you've never done it before) and will preserve the photos as long as they are on the internal SD storage and not on the internal phone storage.

Of course, if you take it to Samsung for repair they will probably just flash a new firmware for you but they might reformat the internal SD storage which will wipe out your photos.

All the best.

Ray.