[opendtv] Re: All colors of rainbow in new display concept
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Sun, 20 Aug 2006 19:06:49 -0400
Donald Koeleman wrote:
>
> John Shutt wrote:
>>
>> What is the ability of current image capture technology to
>> detect colors other than "cartoon colors"?
[ ... ]
> Well, that was Jeroen's point earlier this week. After he
> had boosted about them having some lovely algorithms to
> extend the colourspace;-). So my response was; well let's
> get to work then', in the mean time Jeroen get those LED
> backed LCD's, followed by some laserunits out there and
> do your magic', no point in leaving that nice stuff you
> developed to enhance colours laying about.
True. And don't forget the distribution chain itself, since everything
from camera to display is set up for red/green/blue as of today. MPEG,
for example, whatever version of it, is not going to easily manage a
zillion new colors.
Seems to me that to make effective use of these new display concepts
requires a paradigm shift in how color images are encoded. What we do
today has been around since the inception of color photography. Instead,
we would have to migrate to a scheme where pixels might be given info
from one or two sources, say, rather than three, but the info from the
one or two sources requires many more bits. You still need at least 8
bits for intensity (gamma weighted), and now you'll need a lot more bits
to benefit from this very expanded color pallette.
I suppose this is why there's no free lunch.
MPEG today provides intensity at different frequencies represented in
the image block, repeated for R, G, and B in some proportion. Now you'd
represent intensity and hue in the coefficients of each block. Because
it seems inconceivable to do the same with all these new hues that we do
now with only three primary colors.
Bert
----------------------------------------------------------------------
You can UNSUBSCRIBE from the OpenDTV list in two ways:
- Using the UNSUBSCRIBE command in your user configuration settings at
FreeLists.org
- By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word
unsubscribe in the subject line.
Other related posts:
