Re: Color words (was: Re: comments on the batch of lujvo et

[Chris Handley <CHandley@GANDALF.OTAGO.AC.NZ>]

>Chris Handley asseverates: ++++++++++
> I agree with most of this. If you
>think of the HLS cone (a cone with the point down) then the 'colours' can
>be arranged around the perimeter with white at the centre of the disc on
>the top and black at the point at the bottom. Then one specifies a hue by
>(essentially) an angle, saturation by a number in the range [0,1]
>(fractional distance from centre) and brightness by distance from the
>point, again [0,1]. In this system 'white/whitish' as a sort of synonym for
>'pale' or 'unsaturated' becomes reasonable.

>Colin replies++++++++++++
> It's usual to use a double cone (points at top and bottom), because as the
>brightness increases beyond the mid-point towards white,  the maximum
>perceived saturation decreases, until at white there is no freedom of
>saturation or hue.
>

I'll buy that.


======================================================================
Chris Handley                                     chandley@otago.ac.nz
Dept of Computer Science                       Ph     (+64) 3-479-8499
University of Otago                           Fax     (+64) 3-479-8577
Dunedin, NZ
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