> "Brightness is the perceived intensity of light coming from the image > itself, rather than any property of the portrayed scene. Brightness > is sometimes defined as perceived luminance. (From Adelson, MIT)" > > and > > "Lightness is the perceived reflectance of a surface. It represents > the visual system's attempt to extract reflectance based on the > luminances in the scene. (From Adelson, MIT)" > > So your implied assumption that Brightness and Lightness are > exchangeable terms is simply wrong. You were quite unspecific where > you want to exchange these terms and I cannot determine if the usage of > "lightness" is correct or not. My guess is, that somebody put some > thought in the choice of words and I wouldn't change it unless someone > shows that the usage of "lightness" is wrong. >
i did not assume anything one of the reply's said it was :) _______________________________________________ Gimp-user mailing list [EMAIL PROTECTED] http://lists.xcf.berkeley.edu/mailman/listinfo/gimp-user
