I am getting my psychology degree and never understood additive versus subtractive color mixing in perception until this video! None of my psych professors ever made it this simple for me. Thank you!!
If you liked this lecture, here's a great video by Captain Disillusion that takes a deeper dive: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-FTKP0Y9MVus.html
I have a makeup artist test for film tomorrow morning and I was really struggling with the additive and subtractive color theory portion of my study guide. This helped so much! Thank you!! So easy to understand than just reading a textbook on it. Thank you, thank you, thank you!
Great video! In 5th grade we were taught red yellow blue paints, which of course doesn’t work well at all when you mix them! You mentioned these in passing as “the artist colors”. What’s going on there?
With CMYK printing, Cyan, Magenta, Yellow and Black inks are printed over top of each other in separate passes through a printing press, with each translucent colour layer subtracting different colours of light as they pass through before the remaining colours of light are reflected back by the white paper (no ink for white, Magenta ink for Magenta, Magenta and Cyan ink for Blue, all inks for Black, etc,). When artists are painting, they can use Red Yellow and Blue paints, mixing them together on a painter's palette to create the colour they want before painting them onto the canvas. The pre-mixing is necessary as the paints aren't translucent, so you wouldn't be able to see the layers painted below. Red, Blue and Yellow are also called 'the Opaque Primaries' for this reason.
on the right, where the layers are, you can see that the blend mode is set to "linear dodge/ add", if you do that with all the layers, you get this effect
That section relates to doing colour corrections on photographs. The camera's Auto White-Balance saw the Magenta in Becky's sweater and incorrectly assumed that the image had an overall Magenta cast, so it added some Green (the opposite of Magenta) to try to colour correct it. This gave us an image with a greenish cast (hence Becky looking a bit greenish/sickly). In Photoshop, with the image in RGB you could use the Green channel to subtract some green and fix the image. If, however, you were working in CMYK (maybe preparing the image for printing in a magazine using a commercial press), you wouldn't have a Green channel, so you'd have to go to the Magenta channel (the opposite of green) and add some Magenta (the opposite of removing some green) to fix the Greenish cast. This shows the inverse relationship between the colours in the Additive (RGB) and Subtractive (CMYK) colour spaces.
Három fő szín létezik: piros, sárga, kék! Ezek a színek nem keverhetők ki más színekből! A zöld a sárga és a kék keveréke. 1.42- nél szereplő ábra rossz, hamis. Piros és zöld keverékéből nem lesz sárga, esetleg barna! Kék és zöld keverékéből nem lesz halvány kék, esetleg kékeszöld ! A piros és kék keverékét véletlenül eltalálták, az valóban lila.
Szia István. A művészek előválasztásaira gondolsz (amit néha átlátszatlan festékeknek is neveznek, mert ez magában foglalja az átlátszatlan festékek keverését), és valóban igazad van abban, hogy a sárga és a kék festék keverésével zöldet kapsz (és a vörös és zöld festék keveréke legyen különösen vonzó). Ebben az előadásban a fényképészeti primereket (más néven "adalékos" primereket) vizsgáljuk, ahol a tiszta fény (különböző elektromágneses frekvenciák) összeadásával foglalkozunk, nem pedig festékekkel vagy pigmentekkel, amelyek kivonnak (elnyelnek). ) fény. A piros és a zöld fény kombinálása valóban sárga színt eredményez. Piros és zöld festék biztosan nem. Hi István. You're thinking of the Artists' primaries (sometimes called the Opaque primaries, because it involves mixing opaque paints), and you are indeed right that mixing yellow and blue paint will give you green, (and a mixture of red and green paint will be particularly unappealing). In this lecture, we're looking at the Photographic primaries (also called the 'Additive' primaries), where we're dealing with the adding together of pure light (different electromagnetic frequencies), rather than paints or pigments, which subtract (absorb) light. Combining red light and green light will indeed give yellow. Red and green paint definitely will not.
