I'm pretty sure that's not the whole story as pigments are subtractive whilst light is additive. One can't take red, green and blue paint and make any colour. IIRC.
Russell On 19 March 2012 16:10, Ian Mallett <geometr...@gmail.com> wrote: > 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 >
