Friends, What do I need to take into account when selecting a background for a chroma key photo session? I'm taking photos of coins and other related objects like badges (the ones you pin on your chest). To mask out the background I would like to use a chroma key program. I hope to use Imagemagick do this. Can I use any arbitrary color as a background? My first thought is to find an opaque piece of blue plastic and light it from below. Any advice on this is appreciated. Thank You, Tim
