Thief of Time by Terry Prachett has a great minor bit about characters who are naming themselves after colors running out of human made labels, as they have to get increasingly esoteric with the names.
It's fun to see that visualized.
A visualization of the RGB space covered by named colors
51–60 of 99 posts
Re: A visualization of the RGB space covered by named colors
#52Earlier quoted context omitted.
Are you speaking of chroma subsampling, or is there a property of the discrete cosine transform that makes it more effective on luma rather than chroma?
Probably chroma subsampling - storing color at lower resolution than luminance to take advantage of the aforementioned sensitivity difference. Since it’s stored at 1/4 resolution it can alone almost halve the file size. Saying it’s the insight that led to JPEG seems wrong though, as DCT + quantization was (don’t quote me on this) the main technical breakthrough?
Chroma subsampling was developed for TV, long before JPEG.
Re: A visualization of the RGB space covered by named colors
#53It would be great to see this for each culture around the world, identifying the named colours from their language / culture.
I saw a BBC? documentary about this years ago and it showed how some cultures had the ability to clearly identify different colours where I couldn't see any difference.
It turns out that knowing subtle differences in colours can have a strong impact on your daily life, so cultures pick unique parts of the colour spectrum to assign names to.
Re: A visualization of the RGB space covered by named colors
#54It would be great to see this for each culture around the world, identifying the named colours from their language / culture. I saw a BBC? documentary about this years ago and it showed how some cultures had the ability to clearly identify different colours where I couldn't see any difference. It turns out that knowing subtle differences in colours can have a strong impact on your daily life, so cultures pick unique…
https://news.mit.edu/2017/analyzing-language-color-0918 and also https://theconversation.com/languages-dont-all-have-the-same...
VOX : The surprising pattern behind color names around the world https://youtu.be/gMqZR3pqMjg
If you're interested in this is as a board game - https://boardgamegeek.com/boardgame/302520/hues-and-cues
Re: A visualization of the RGB space covered by named colors
#55Wish there was a way to make it stop spinning, it's practically impossible to figure out adjacent colors because everything keeps moving no matter what you do. Perhaps there is a way, but I didn't find it?
https://codepen.io/graypegg/full/XJXoxYB Only change is lines 421 + 422 that sloooowly rotated the cube are commented out in the javascript, otherwise should act the same!
holy shit its so much better
Re: A visualization of the RGB space covered by named colors
#56RGB is a color model[1], not a color space[2]. Note that the headline gets this wrong but the page linked to gets this right. sRGB or Rec2020 or ACEScg etc. are color spaces with known primaries and a known whitepoint. This is not nit-picky. Almost everyone doing CGI for the first time w/o reading up on some theory beforehand gets this wrong (because of gamma and then premultiplication, usually in that order). Then t…
Not an expert but I'll drop my 2c
Most of my career was somehow related to graphics programming and I always thought it's bit weird that most quantization algorithms were operating in RGB model despite the fact that it was designed for hardware, not so for faithful color manipulation.
The easiest way to see that is to imagine a gradient between two colors and trying to make it in RGB. It doesn't seem right most of the time.
If so, then why would we consider distance in 3D space between two colors as faithful representation of their likeness?
Well, lo and behold, it's 2025 and everyone finally accepting LAB as the new standard. :)
Re: A visualization of the RGB space covered by named colors
#57RGB is a color model[1], not a color space[2]. Note that the headline gets this wrong but the page linked to gets this right. sRGB or Rec2020 or ACEScg etc. are color spaces with known primaries and a known whitepoint. This is not nit-picky. Almost everyone doing CGI for the first time w/o reading up on some theory beforehand gets this wrong (because of gamma and then premultiplication, usually in that order). Then t…
Not an expert but I'll drop my 2c Most of my career was somehow related to graphics programming and I always thought it's bit weird that most quantization algorithms were operating in RGB model despite the fact that it was designed for hardware, not so for faithful color manipulation. The easiest way to see that is to imagine a gradient between two colors and trying to make it in RGB. It doesn't seem right most of th…
Except color is a construction of your eye-brain derived from stimuli, surround, memories, etc.
It's definitely not something you can plug into a three-value model. Those are good stimuli encoding space, however.
The distinction between brain-color and physical-color is what screws everyone up.
Re: A visualization of the RGB space covered by named colors
#58Earlier quoted context omitted.
Not an expert but I'll drop my 2c Most of my career was somehow related to graphics programming and I always thought it's bit weird that most quantization algorithms were operating in RGB model despite the fact that it was designed for hardware, not so for faithful color manipulation. The easiest way to see that is to imagine a gradient between two colors and trying to make it in RGB. It doesn't seem right most of th…
Except color is a construction of your eye-brain derived from stimuli, surround, memories, etc. It's definitely not something you can plug into a three-value model. Those are good stimuli encoding space, however. The distinction between brain-color and physical-color is what screws everyone up.
fun fact: there's a guy with similar background to mine, with similar dedication to color, yet way more productive and he came out with this incredible piece of art: rebelle app
As with most recent technological breakthroughs it uses math from 1931 paper to magically blend colors in ways that seems so realistic it's almost uncanny.
Re: A visualization of the RGB space covered by named colors
#59Earlier quoted context omitted.
Not an expert but I'll drop my 2c Most of my career was somehow related to graphics programming and I always thought it's bit weird that most quantization algorithms were operating in RGB model despite the fact that it was designed for hardware, not so for faithful color manipulation. The easiest way to see that is to imagine a gradient between two colors and trying to make it in RGB. It doesn't seem right most of th…
Except color is a construction of your eye-brain derived from stimuli, surround, memories, etc. It's definitely not something you can plug into a three-value model. Those are good stimuli encoding space, however. The distinction between brain-color and physical-color is what screws everyone up.
> It's definitely not something you can plug into a three-value model.
What do you mean? And what is screwed up? We use 3 dimensions because most of us are trichromats, and because (un-coincidentally) most digital display devices have 3 primaries. The three-value models definitely are sufficient for many color tasks & goals. Three-value models work so well that outside of science and graphics research it’s hard to find good reasons to need more, especially for art & design work. It’d be more interesting to identify cases where a 3d color model or color space doesn’t work… what cases are you thinking of? 3D cone response is neither physical (spectral) color nor perceptual (“brain”) color, and it lands much closer to the physically-based side of things, but completely physically justifies using 3D models without needing to understand the brain or perception, does it not?
Re: A visualization of the RGB space covered by named colors
#60Wish there was a way to make it stop spinning, it's practically impossible to figure out adjacent colors because everything keeps moving no matter what you do. Perhaps there is a way, but I didn't find it?
I changed it: as soon as you interact with it, it stops spinning