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Re: 8 verses 16 bit



Very informative for a rant...I think the most likely reason Adobe doesn't
change Photoshop for complete higher bit capabilities is because PS is
mostly used to create and prep images for use in CMYK offset printing, in
which the extra bit depth wouldn't be useful, as the gamut is limited...I
think to less than the full spectrum provided even by 8 bit color.
Same with video...essentially lo-fi color.

on 03/02/2002 08:38 PM, David Chien at chiendh@uci.edu wrote:

> ----
> 
> Human color vision studies easily show that the human eye can easily
> see more colors than what the 8-bit color range can support.
> 
> In fact, simply looking at just one color, R, G, or B, alone will
> make it easier for most people to understand why.
> 
> If you only have a 8 bit color system, Red, let's say, can only
> have 256 shades total!
> 
> As you well know perhaps from working with a bit 64 color Crayola box,
> there are far more shades of red than 256.
> 
> As a result, using a 8-bit color system immediately prevents you from
> recording subtle color shading in certain types of photography - eg.
> flowers, skin tones, etc.
> 
 
> No work would have to be done at all to let the user continue using older
> filters with the latest high-bit enabled photo editing program because
> those filters would simply see the old 8-bit interface.
> 
> The only thing that would have to be done is to write new filters that
> work in multi-bit mode, which is not a bad thing since that means filter
> makers would release new upgrade versions everyone buys, just like they
> spend money today to buy new versions of all software.
> 
> -----

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