the color ramps and maximum brightness of each colour channel may differ from screen to screen but the brightness of yellow is still the sum of both red and green, on >99% of devices.
I just came back after accidentally unsubscribing. What the actual fuck did I do to this thread. I didn’t think anyone would take it seriously, I was just making a joke y’all.
@Transparentist
The definition of “yellow” is very contextual, and this entire conversation has been in the context of computer images. I don’t know why you’d think I would suddenly start talking about something else.
I was commenting directly on the assertion that image editing programs should produce yellow when mixing red and green, which is silly. Between the graph you posted and the graph Binkyt11 posted, Binkyt11’s brownish colour is more correct than your yellow is.
@Transparentist
Um, actually, yellow just looks brighter because the human eye is more sensitive to it than other colours.
Edit: Aaaand I see you already mentioned that a few posts back.
@SuperSupermario24
I don’t think averaging them is quite the same as blending either. I remember having to do it to implement linear interpolation and there was a bit more math involved than that.
@likeafox
ugh your initial statement was that green and red cant make yellow because yellow is a brighter colour, nowhere did you ever state “yellow is displayed more brightly on most TV screens” You literally said that the colour itself is brgihter.
And even if the SCREEN outputs yellow at a higher luminousnesseseseseses the software doesnt adjustrs its brightness on that
Also, it’s important to keep in mind that there’s a difference between adding two colors and averaging them. Adding the RGB values for red (255,0,0) and green (0,255,0) gives yellow (255,255,0), while averaging them gives about (127,127,0) which is more of a brownish color. I think averaging might be what most people think about when they think of mixing colors.
@Transparentist
That’s a pretty cool article you linked, but it talks a lot about human perception and doesn’t really address what we were talking about which is computer representations, and reproductions, of color.
On electronic devices, yellow doesn’t just seem brighter, it is objectively brighter. There is a greater than 99% chance that the screen you are using is made of pixels that are each composed of a Red, Green, and Blue subpixel that all individually adjust to various brightnesses to produce the colours you see. A green pixel has its green subpixel at full brightness; a red pixel has its red subpixel at full brightness; a yellow pixel has both its green and red subpixels at full brightness. So when you are looking at the yellow region of the graph you posted, its pixels are as luminous as the sum of the luminosity of the pixels of the red and green regions. ie., the yellow is brighter than both the red and the green are.
