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What primary color scheme should SoylentNews have?
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The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
I'm not a robot like you. I don't like having disks crammed into me... unless they're Oreos, and then only in the mouth.
-- Fry
(Score: 3, Informative) by isostatic on Friday February 28 2014, @01:12PM
Green isn't a primary color. When mixing paint green is a secondary color made by mixing yellow and blue (red is the third primary). When mixing light (such as on your TV or monitor) the primaries are yellow, cyan, and magenta.
No, you're wrong. Wrong wrong wrong.
With emitted light the primary colours are additive, red, green, blue. That's why your TV has 3 cathod ray tubes in, Red Green and Blue. That's why your component signal is often RGB (or a mathmatical matrix to get it fitting in 0.775V like YCrCb, YPrPb or YUV)
Arty people and teachers like to claim red, yellow, blue as the primary colours of paint, and red, green, blue as the primary colours of light, and they're wrong. However you have got it completely the wrong way round.
The reason your printer has Black, Cyan, Magenta and Yellow toners is because CMY are the 3 primary colours of ink (subtractive primary colours). You can make any colour from those 3 by layering ink over each over.
(Score: 2) by mcgrew on Friday February 28 2014, @01:25PM
With emitted light the primary colours are additive, red, green, blue.
Actually, you're right; I misremembered that class I took 35 years ago. Magenta, yellow, and cyan is for printing with pixels. Odd that the CMYK would wind up in my brain like that, since the '70s were almost 100% analog and CYMK wouldn't have even been mentined in the class.
Damn, I need to go back to school, I've forgotten and misremembered so much.
Free Nobots! [mcgrewbooks.com]
(Score: 2, Interesting) by hubie on Friday February 28 2014, @02:23PM
Both of your comments reminded me of one of Feynman's stories. [everydayscientist.com] :)
(Score: 1) by Crash on Friday February 28 2014, @04:54PM
What the hell, is soylent socialist or something. Or worse Canadian?
Someone politely corrects your error, you politely acknowledge the correction.
Seems a little too friendly or something, where's all the angst, bitterness,superiority complex and gloating about pointing out someone's error...
Oh, right. Not /.
(Score: 2, Funny) by chromas on Sunday March 02 2014, @02:33AM
Your brain was painted pitch black. Your memories were likely eaten by a mcgrew.
(Score: 2) by mcgrew on Sunday March 02 2014, @09:42AM
I remembered where it came from. CMYK was used in lithography and other analog printing processes.
Free Nobots! [mcgrewbooks.com]
(Score: 4, Interesting) by TheLink on Saturday March 01 2014, @06:30AM
Only for conventionally trichomatic humans ;). There are humans who would need four distinct primary colours for their full colour gamut:c hnology2 [theguardian.com]
http://www.theguardian.com/science/2001/feb/01/te
https://www.ncbi.nlm.nih.gov/pubmed/8351822 [nih.gov]
http://neuroblog.stanford.edu/?p=5181 [stanford.edu]
I wonder if watching TV for them would be like us watching a TV with a missing primary colour.
(Score: 2) by maxwell demon on Sunday March 02 2014, @06:18AM
Actually, even for "normal" people, three colours are not really enough to mix all existing colours. Especially the spectral colours cannot be mixed out of other colours.
With three appropriately chosen colours you can, however, get a large part of all colours (and a good approximation for the rest), and it happens that the best choices contain one red, one green and one blue colour — although the standard choices like sRGB can be far from optimal as can be seen e.g. here. [wikipedia.org]
Note that the display of the colours outside the sRGB triangle in the image is necessarily wrong. But then, the choices of base colours are affected by other considerations (for example, from the colours alone, the optimal choice for red and blue would be a spectral colour very close to the border of the visible spectrum, but there our eye's sensitivity is low, so you'd probably need ridiculously — if not dangerously — high intensities; also you're limited in what colours you can actually produce with reasonable effort, which I guess is the reason why the green colour of sRGB is so far away from the optimum which would be monochromatic light with a wavelength near to 520 nm).
The Tao of math: The numbers you can count are not the real numbers.