Itunes is asking me to restore my iphone?

I just upgraded to the latest itunes and as it was downloading, my computer shut off. When I turned it back on my phone screen was frozen on the apple and a white "loading" bar that would not load even when i plugged it back in. My itunes didn't recognize my iphone and when i finally got it unfrozen, it told me i needed to restore my iphone. I'm not worried about my apps or music because i had just synced those, but i'm more worried about my contacts and pictures. I have 3 thousand pictures since the last time I synced and this time it did not download my pictures when I synced my iphone. I don't want to lose those pictures i have all of my christmas and holiday pictures on there and i would be absolutely devastated to lose them. Is there anything that i could do? (I have an iphone 5 if that makes any difference)

If you restore it saves everything then downloads it back in. It works for my iPhone

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