“A New York federal court judge has rejected photographer Bill Diodato’s lawsuit alleging that the Kate Spade fashion accessories company illegally copied one of Diodato’s images for use in an ad campaign. The court’s decision was based on the principle that copyright protects only the expression of an idea, not the idea itself. The two photos in dispute were based on the same concept-a stylish woman’s legs, as they appear from beneath a bathroom stall-but the photos expressed that concept differently, the court concluded.” - story (my emphasis)