On Fri, 22 Feb 2002, Asger K. Alstrup Nielsen wrote: > On Thu, 21 Feb 2002, Mike Ressler wrote: > > Actually, the better way to do this is (xv Postscript code) ... > > Either gives a better match to a human's RGB to luminance conversion. > > Definitely not (R+G+B)/3! > > This is true. I just couldn't remember the coefficients in my head, > so I just gave you an approximation that should be good enough for > starters.
Amateur. > Just for background, you can actually do it better than the > weighted-average. However, it's a pretty big job: ... > In general, a complete color-proof system is very expensive and > difficult to achieve. Ouch! Talk about swatting a fly with a sledge hammer. But it is a very good procedure. When can we expect a patch? Mike (ducking for cover, and escaping to do some real work ...) -- Mike Ressler [EMAIL PROTECTED] OK, I'm lame: I don't have my own website ...
