I used photoshop to do this, since I had some areas that had finger smudges on the frame and writing on the bottom of the photograph. We will cover A LOT of editing tips in posts to come. I will show you step-by-step instructions of editing photos. For starters, you could import this into any editing program you use, and by adding some brightness and contrast, make it look much better.
For now, when you are somewhere that has special photographs that you want to keep, take pictures of them and save them for your own family history. A picture of a picture totally works; you can get them printed out to look just as good. This one is priceless to me and now I can show my children what their Nana looked like; someone who was so wonderful, sweet, caring and kind, and who I will always look up to as I raise my own kids.