[REBOL] Re: Case comparison?
From: greggirwin:mindspring at: 15-Oct-2001 13:16
<< but what does it means to uppercase an image? >> Curses! I had to know. It subtracts 32 from the individual R, G, or B values if they are 97 or higher (lowercase range +). Although a value of 255 converts to 159 (i.e. 96 is subtracted). --Gregg