Color Vision 1: Color Basics

[@The_Christian_Swiftie]

This video taught me more in 15 minutes than my teacher taught me all year. Thank you so much! You just earned yourself a new subscriber.

[@timovepsalainen4927]

As a studying colorist 2022, this was very well done and informative lesson. I'll be watching all the rest! Thank you for your hard work!

[@hgracern]

Yes! Our perception of Color. Thank you v much. ❤

[@cbeyedr]

Thanks for the question. The terms get tricky here. For a basic understanding consider the HSL system which describes color by 3 properties: Hue, Saturation and Lightness. Hue is the color in the spectrum (dominant wavelength). Saturation is the purity of the color. Tints take the basic color and add white; shades take the basic color and add black. Lightness is taken as the range from black to white; object is not self-luminant. Brightness can be dim to brilliant; object is self-luminant. Luminance is a physical measure of light intensity. (It can get more complex.) Hope that helps.

[@ekeneuneke2443]

This is great, thanks a lot. But how do you know how pure a hue is?

[@straylightOz]

really good collection of vids, many thanks. A lot more complex than the average middle school science text book makes out. I'm showing them to my classes, take a bow

[@internationalrelationsdiar2930]

very helpful and thanx for sharing ur wonderful knowledge with all of us

[@electronpusher604]

Thank you for this series. I've been reading documents on this exact subject that are very, very confusing and this is helping me a lot.

[@rebanelson607]

Excellent presentation. Thanks!

[@Skellington1985]

Thank you so much for this video, it realy helped me out while studying for my finals (perception) ! It is more clear when you actually see it.

[@Zager-recap]

more useful than some paid courses dvds. Thank you.

[@worwantube]

Thank you. This clip is very helpful and solid.

[@miioa9179]

Thank you so much! This is very helpful, you're an amazing teacher

[@yamahdi2023]

Thank you for your effort, very helpful 🙏

[@maheshgharage8480]

Very much meaningful and detail.

[@cbeyedr]

This is a very cool part of color vision. Pure spectral Yellow is just that, one wavelength, around 580nm. Combination Yellow is Red+Green. Though physically different, the two Yellows could be indistinguishable to the human eye/ color system. Put spectral yellow through a Green filter and it should not pass. Put the combo through a Green filter, you remove the Red, but leave the Green.

[@Konopele4ka]

Thank you so much for the vid!

[@comic4relief]

At about 14:00, what is the term you mention? Metameric?

[@Aedal-9]

Thanks for your great videos!

[@sukursukur3617]

Excellent explanation. Thank you very much. If we send red wavelength onto a surface, which seems green under D65, which color does it seem in? Secondly, if we send same red wavelength onto another surface, which seems blue under D65, which color does it seem in? Thirdly, i foresee both surfaces will seen red. Is there any other possibility with regards to properties of reflected red light from surface to be different except for intensity?

[@cultivarcultivar]

What would happen if you take pure spectrum yellow light, and shine it through a green filter? Would the result be the same as shining a combo of equal amount of red and green light (hence yellow), and then shining it through a green filter?

[@seriousmax]

So, additive mixing is like arithmetical mean of the two colors' wavelength, right? Add 550 and 650 get 600. Or is it wrong?

[@Soumick.ds84]

What is the term use to describe the same light of different spectrum?

[@nazarian3]

Very interesting!

[@sohowsoon6652]

fabulous

[@glowclue]

sohow soon a delight!

[@itsmaname3384]

Thanks Craig

[@stevenvarner2495]

I appreciate that you said the choice of the three spectral colors is arbitrary. That is true. There really are NO unique primary colors. Any three wide ranging spectral colors can be used to give a range that approximates what we see. However, you continue to stress the RGB used in monitors, which unfortunately tends to perpetuate the thought of them as unique primaries. The actual monitor colors are a violet blue, an orange red, and a yellow green. These three colors are incapable of synthesizing every color humans can see, even when more than one spectrum is mixed. The gamut is too broad for any three colors to work. The same is true for three subtractive pigments. No three colors can produce every possible color. In addition, the choice of the three is also arbitrary. The concept of unique primaries is fallacious.

[@renatinhuuu1]

just because we have to use our perception to see all colors in the rays of light, doesn't mean that the colors are not in the light, this is nonsense, It was a philosophical conclusion made by Newton, clearly a wrong conclusion. If you say that light has no colors then you must assume that nor light exist, nor any other perception, (just because we perceive in our brains doesn't mean it isn't real outside of it) We see color by our photoreceptors (cones) , the brain perceives. A good example are Infrared vibrates atoms, UV freed electrons, and Milimeter-wave moves atoms. Surely Infrared has explicitly different meaning to atoms & molecule than a UV has to them. IF your eyes sees each spectrum as distinct color of distinct 'meaning', then same is for nature (atoms and molecules) which it gave different actions to them; it ISN'T a continuum of spectrum that mean nothing like in drawings. The idea that 'color' didn't exist outside human mind is debunked...

[@spirit469]

Color is a perception in your brain. It does not exist without a brain to interpret it. Different species see different colors, because they are not objectively real in the same way that light itself is real.

[@kelike78]

Please read something about blackbody radiation, as for a model that is precise on the specifics of electric magnetic spectrums (i.e. light) from objects that absorb energy and emitt photons in the electromagnetic spectrum. There you can see for yourself, that colors are just an arbitrary way for us with eyes and the human brain to distinguish between them. We can only sense the red, green and blue in the wavelengths. Then the other colors are just combinations of wavelengths. The sun is a yellow star, but still we sense its color as white from space due to our human inability to sense the real field of radiation from it, and so all the radiation from our home star looks white, as to give us the sense of some pure reference to the other wavelengths. Still, to an alien in another galaxy, some other temperature of radiation than our sun( aprox.5800 K) like 3500 K, would appear snowy white, but red to your human brain.

[@keithklassen5320]

Sr Dollar The word "colour" refers to the human sensations caused by light of different spectral qualities. Light would exist without a human mind to apprehend it, but colour would not, as it is a human sensation. Of course, one might also say that because both "light" and "colour" are human words in the English language, neither would exist without humans, or even without English speakers... The phenomena described by the word "light" would continue to exist, but the words wouldn't...

[@PartOfWindmaker]

Лайк если от Погожева!

[@brianbrown2237]

A little boring, but the dude did good explaining things. Also, green is not part of the primary colors, it is YELLOW!!!!!!!!!!!!

[@KyleMart]

Red, blue, and yellow are a representation of primary colors for the subtractive system. It is outdated, yet for some reason is still taught in schools. Cyan, magenta, and yellow are a better representation of primary colors and offer a better gamut of color.

[@ArchFish-zm9vl]

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