[comp.graphics] R,G,B -> greyscale

brian@utradio.UUCP (08/18/87)

I know this has been posted before, but I must have deleted the information.
Could someone tell me how to convert r,g,b to grey. It's not quite (r+g+b)/3
as I recall.

To not bore people it would be best to reply via mail. Thanks,

-- 
Brian Glendenning         UUCP   - {allegra,decvax,pyramid}!utgpu!radio!brian 
+1 (416) 978-5558         BITNET - glendenn@utorphys.bitnet