the human eye's ability to distinguish colours depends on the colours
though. like, our eyes suck at distinguishing blue gradients. in most cases
24bit should be enough, but there are cases in which one needs an even
higher accuracy. some years back they used 30 bit colour depth (10 bit on each
channel) for colour vision research. they might use even more now.
tmk
At 12:40 04.04.2002 +0200, you wrote:
>I heard the human eye can in fact distinguish something like two million
>colors. Whether this is necessary is another question.
>
>What's not in question is that 262,144 colors need 2 bits more per pixel
>than 65536 colors and that's a potential 12.5% price increase for the same
>size of a picture in packet fees (not counting compression here, for jpeg's
>it wouln't make a difference at all afaik). Subtle opportunity to increase
>prices (more difficult with products like milk and butter where at least in
>Germany there's a law on how much empty space you may package)! Same is true
>for an increase of screen format - if widely adopted.
>
>Regards
>marc
Received on Thu Apr 4 14:00:21 2002