HDRI

Research

what is HDR?http://www.google.com/search?client=safari&rls=en-us&q=what%20is%20HDR&ie=UTF-8&oe=UTF-8

http://en.wikipedia.org/wiki/High_dynamic_range_imaging

something to do with curves in photoshop?
http://www.flickr.com/groups/hdr/discuss/40580/