>On Wednesday 04 January 2017 21:02:15 paulhurm wrote: >Chuckle... Make the connection with RGB in the video realm, where its >all additive. So much red, so much green, and so much blue is white. >Hence its RGB. In the video realm, its basically a matter of ajusting >each colors gain once black is established, to get a pleasing white on >the video screen. THis is RGB. > >OTOH, The print realm is all subtractive, the Cyan reflecting green >and >blue but absorbing red,, the Magenta reflecting red and blue but >absorbing green, the yellow reflecting red and green while absorbing >blue, and K is the combined luminance expressed as the density, hence >the CMYK designation. > >One, RGB references just barely visible as black, while CMYK >references >the base color of the whiteish paper as its white, and inks are laid >down to subtract the RGB from the white. And often, to save the >expensive colored inks, the blackest areas will get a reduced amount >of >color in favor of getting a more consistent black by useing black to >build the density needed with far less ink. > >Neither method can at the end of the day, represent the complete color >spectrum the human eye (with good color vision) can see, but generally >can be tweaked to do a decent job in the center 2/3rds of that color >chart we've all seen in the past few decades. > >Thats not all of it, but thats about as simplicated as I can make it. >I >hope this helps. > >Cheers, Gene Heskett
So much to learn and become familiar with. I did happen to go out and read up a bit on the RGB vs CMYK issue but the above helps too. If you read my other recent reply, watch for a reply where I plan to post my recent before and after attempts. Thanks. Paul -- paulhurm (via www.gimpusers.com/forums) _______________________________________________ gimp-user-list mailing list List address: gimp-user-list@gnome.org List membership: https://mail.gnome.org/mailman/listinfo/gimp-user-list List archives: https://mail.gnome.org/archives/gimp-user-list
