> > Hmm, I understand, then the default black-to-white gradient would > > be non perceptually linear, which is more surprising than the > > color-to-color gradient. I think I am now convinced this is > > correct, but it will probably be puzzling to use. > > > > BTW, "gradient" is not such a good example because it's not related > > to chromaticities, "Invert" would be a better one. > > > > I don't understand what you are trying to say. How is drawing a > gradient > from most saturated red to most saturated green in any given color > space > not related to chromaticities? Well, a gradient operation doesn't have to know what are the coordinates of chromaticities. The two colors used for a particular gradient are given by the user, if he want the "from most saturated red to most saturated green", he just have to send the coordinates of the red and the green to the operation, which could be the scaled/translated [1.0, 0.0, 0.0], [0.0, 1.0, 0.0] for a GIMP user. Since we just say that the operation have to work in a linear color space, there is no issue with out-of-gamut values. Is that correct? If so, that's why "Gradient" is not a good example. "Invert" needs to know what are the chromaticities because it uses them to compute the "inverted" colors. _______________________________________________ gimp-developer-list mailing list List address: gimp-developer-list@xxxxxxxxx List membership: https://mail.gnome.org/mailman/listinfo/gimp-developer-list List archives: https://mail.gnome.org/archives/gimp-developer-list
