On Mon, Mar 19, 2012 at 9:49 AM, Russell Jones <russell.jo...@gmail.com>wrote:
> Great news :) I liked IYOCGwP and have mentioned it here before now. > > BTW, on page 34 of the new book you write "(Red, blue, and yellow are the > primary colors for paints and pigments, but the computer monitor uses > light, not paint.)" > > The primary colours for pigment and paint are cyan, yellow and magenta, no? > > Russell > There is a "color space" that defines all possible colors. "Primary colors" are the colors we choose as basis vectors. Both red-blue-yellow and cyan-magenta-yellow are valid basis vectors; the former more often used in painting, the latter more often used in printing. Ian
