RE: 6502 core / 128 mode (re: J-Board) (fwd)

From: MagerValp (MagerValp_at_cling.gu.se)
Date: 2001-03-13 15:27:08

>>>>> "WL" == William Levak <wlevak@cyberspace.org> writes:

WL> 24 bits is enough to produce 4,000,000 colors, which is more than
WL> enough since the human eye can only see 3,000,000.

24 bits = 16777216 different colours, but it's not enough -- human
eyes can make out more shades; the 3000000 figure just isn't compar-
able. 24 bits means 8 bits each for red, green and blue. If you have a
nice, linear shade across the screen from 0 intensity green to 255
intensity green, it'll appear nice and smooth with no visible banding.
Now try it with light beige to light grey -- there's lots of banding.
For a perfectly images, you need somewhere between 30 and 36 bits per
pixel.

-- 
    ___          .     .  .         .       . +  .         .      o   
  _|___|_   +   .  +     .     +         .   .  Per Olofsson, konstnär
    o-o    .      .     .   o         +          MagerValp@cling.gu.se
     -       +            +    .     http://www.cling.gu.se/~cl3polof/
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