🚀 go-pugleaf

In article <1992Sep22.071113.22483@RedBrick.COM>, jfr@glitter.RedBrick.COM writes:
|>                .....  Stuff about 12 bit vs 24 bit deleted
|> 
|>   I also don't see how 12-bit RGB could ever be close to any 24-bit color
|>   system (unless viewed on a crappy monitor)... But that doesn't negate
|>   the usefulness of 12-bit color.  In fact, I have advocated that NeXT
|>   take the steps necessary to support 6-bit color on 8-bit pallette
|>   systems (typically 486-type PCs and 8-bit color Macs).  I do not expect
|>   NeXT to go off and start supporting pallette color... it would change
|>   the consistent behavior of the Display Postscript model, for one thing,
|>   and it is yuccchyy to work with..  However, for things like business
|>   graphics (particularly in deployable "mission-critical custom app"
|>   workstations which are likely to be low-end PCs), 64 colors (6-bit 
|>   RGB) would be just fine.  Many of us used IBM's original 2-bit and
|>   4-bit color (4 and 16 colors, respectively) and these were useful
|>   albeit a bit dull for putting color into what were primarily text
|>   applications (fill-in-the-forms, etc.)  64 colors is pretty good
|>   (the Amiga, known as a premier color workstation, only supports
|>   6-bit color in its most usable and programmable mode and it is
|>   wonderful... dithering to get additional shades helps, of course).
|> 
|> Jon Rosen
|> jfr@redbrick.com
 -----------------------------------------------------------------

Y'know, I thought this too.  We just looked into this very question, and
were very surprised at the results.  We are working on a medical application.
The images are primarily gray scale with color overlay; not photorealistic
color.  We have been using a 'cube with a Dimension.  We use Sony monitors,
generally in good condition.  We have a great deal of experience at high
quality video (we have built gray scale systems that do 2560 x 2048 12 bit, and
color systems for professional pre-press applications).  We know what to look
for. 

Last week, we ran the application on a Color Turbo 'station.  Surprise; we could
not see a substanitive difference! I claim to be able to see a difference in the
gray scale, although several of my associates could not.  But not a difference 
that affected the ability to do the job.  Blow us away.

From this we conclude that either the Dimension has poor output video,
or the 'station, with all of the software, is really very good.  Also
note that the Turbo station was significantly faster at graphics than the
Dimension.  The 860 gets in the way more than it helps.
 

+- -----------------------------+-----------------------------------------+
| Brian Rosen                   |  Cognos*centi Corp.                     |
| br@cognos.visus.com           |  Tel (412) 488-3909  Fax (412) 488-7599 |
+-------------------------------+-----------------------------------------+