i synced my iphone 4 with my computed and the erase pictures after sync box was checked and i did not realize it, is there a way to get the photos back into camera roll?

i got a new computer and synced my iphone with it for the first time, i didnt realize the box for erase photos after synce was checked and my photos got erased off my iphone. i got the photos onto my iphone again by going into itunes clicked on the button to go into sync settings for the iphone on the top bar from there i clicked photos and picked the folder with the photos i just synced. i was hoping there was a way to move my photos back into caemra roll. right now i have 4 albums. camera roll, photo library, an album i titled, the album of photos synced with onto my phone that had the pictures that got deleted. the photo library and the photos synced albulm have the same thing in them