Well Cloudy, I don't know if there's an easier way for doing this, but I opened my picture in Photoshop, enlarged it to its 1200x size. Then I used the replace colour tool, replaced the FF00FF colour with black, noticed the pink spots on black background, then clicked cancel and made them disappear one by one by using pencil tool. Well it wasn't such a long work so maybe you should try, but I hope someone can give you a tip that's easier than mine.
Myka is my old username, please call me Huuxera! <3