[opendtv] Re: New Chips Improve Color TV Dramatically
- From: Mike Enright <menright1@xxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Thu, 24 Jun 2004 08:43:53 -0700
jeroen.stessen@xxxxxxxxxxx wrote:
>I wonder what the world would look like to an individual
>(animal ? extraterrestrial ?) whose eyes have more than 3
>channels. What does an N-dimensional colour space look like
>if N > 3 ?
>
There is a common teen-age speculation about how the sensation of blue
(for example) might be a different experience to you as opposed to me by
some third-party standard of evaluating physiological responses and how
they translated into neural impulses on the optic nerve etc, but when we
see the same blue (the Philips logo for example) we both without
discussion label it blue (come to think of it I think you called it
cyan? :) arguable). I think the alien in simple situations would easily
deal with how we label colors, although the alien might notice a
difference between a wideband blue and a strong source of a paticular
blue wavelength.
I've read some papers about computer-generated imagery which showed that
computers could more accurately simulate certain unusual images if they
sampled the spectrum more densely and made certain minor changes. CGI
usually does a monochrome image per R, G & B channel with very limited
handling or no handling of wavelength-dependent effects. One author I
read settled on 9 channels for accurately simulating an obscure class of
images that clearly came out wrong with the conventional approach. I
suspect it's been a decade since this was published.
>How would you choose a colour for your car ? ;-)
>
>
>
If the car isn't a sports car that should be whatever red they're
offering, the alien spouse with the better color vision chooses the
color, just like on Earth <ducking>
--
Mike Enright
mail: michaelt@xxxxxxxxxxxx AIM: enr Yahoo: michaeltenright
Beautiful Cardiff-by-the-Sea, California
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