|Wednesday, August 22nd, 2001|
3:36p - restrictions, triggers, colorspace, two evils, and oberlin
(in no particular order)
well, here I am back in Oberlin . . . and my computer's in storage (DOH!) and I might not be able to get it out of storage (DOH!). Well, hopefully I can - I'll find out around 10:30'ish, likely. We shall see. Although Murphy's usual self would pretty much insure that it's stuck in there for another week >_< sigh.
So I've got a lot of subjects to write on :) wonder if I'm gonna hit the entry limit . . . yes, there is one, I just dunno what it is. it's lots :) Well, I'll write, and if I run out of room . . . I'll just spam everyone with two absolutely enormous messages ;)
maybe I should actually break this up. yeah, okay, I'll do one chunk at a time and save 'em in email, then dispatch them every few hours or something . . .
bah, this lab closes at 5:00! suck :(
okay. Colorspace. Who knows how humans percieve color? :)
Well, I'll tell you. (saw that coming, didn't you?) Humans percieve color through the receptors in their eyes called "cones". Cones come in three different types - the cones that percieve red, the cones that percieve green, and the cones that percieve blue. All colors we see are a combination of those three.
But this starts bringing up some interesting ideas. For example, if I look at something, say, orange, what does that say about the color-between-red-and-green? Because we don't have any receptor for that spot, it doesn't say anything at all. It could be reflecting a lot or none whatsoever, and we have no way of knowing.
Now, take, for example, some hypothetical alien species that sees four channels. It's going to look at things we've built and probably think they look rather odd, because it's going to be seeing *something* that we don't. Two pieces of plastic with the same shade might, due to different construction processes, look completely different to this alien creature.
Us humans have basically a 3-dimensional color space - R, G, B. What would the world look like for a 4-dimensional color space? Or an infinite dimensional color space? Take, instead, receptors that recieve *all* wavelengths . . . how weird would *that* be?
I'm curious as to whether we could do spectra shifting - if we turned all wavelengths down a certain amount, what would the world look like at that point?
Other thoughts . . . there's another way of telling colors apart known as HSL. Hue, Saturation, Lighting. What would a four-color version be? Clearly HSL won't work for that . . . in fact, almost all color methods I know of are 3-dimensional. The only exception being CMYK, and CMYK is just weird :P
We've got a ton of research and theory around these three values that are, really, quite arbitrary . . .
I think I'll write another post or two, but only post them later on.
current mood: curious
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