1. A method of representing stereoscopic images comprising: a first image representable as coordinates {A 1 ,. .. ,A r }; a second image representable as coordinates {B 1 ,. .. ,B s ; transforming coordinates {A 1 ,. .. ,A r } into color coordinates {C 1 ,C 2 ,C 3 } using transformation G C ; transforming coordinates {B 1 ,. .. ,B s } into coordinates {Y L } using transformation G Y ; brightness Y C of said first image is represented in coordinates {C 1 ,C 2 ,C 3 }; brightness Y Y of said second image is represented in coordinates {Y L }; and wherein the brightness contrast of said first and second images represented in coordinates {C 1 ,C 2 ,C 3 ,Y L } are balanced for like subject matter in said first and second images.