Impossible color
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Impossible color
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Re: Impossible color
#2When adjusting paint colors if what you have is too red “or on the red side” you can correct it by adding green. If what you have is on the blue side add yellow then kind of straighten out the undesirable green by adding a smidge of red. This is the sort of thing a skilled shader technician would do to match automotive or sign paint. I did this for a while for PPG
You might find playing with the LAB color scale in photoshop an interesting toy to see why a reddish green color has no sense. by adding red to green you end up on the gray side. basically the colors just neutralize each other.
Re: Impossible color
#3When adjusting paint colors if what you have is too red “or on the red side” you can correct it by adding green. If what you have is on the blue side add yellow then kind of straighten out the undesirable green by adding a smidge of red. This is the sort of thing a skilled shader technician would do to match automotive or sign paint. I did this for a while for PPG You might find playing with the LAB color scale in ph…
Isn’t brown just a reddish green. Or a greenish red.
Re: Impossible color
#4When adjusting paint colors if what you have is too red “or on the red side” you can correct it by adding green. If what you have is on the blue side add yellow then kind of straighten out the undesirable green by adding a smidge of red. This is the sort of thing a skilled shader technician would do to match automotive or sign paint. I did this for a while for PPG You might find playing with the LAB color scale in ph…
Isn’t brown just a reddish green. Or a greenish red.
In substractive color theory, yes, you’ll end up with a brown when mixing red and green in near equal parts.
Keep in mind that the red and green you’ll be mixing is not 100% color pigments, so it cannot merge into a dark grey.
Re: Impossible color
#5I’m surprised the section towards them end about alternating high contrast colors producing impossible colors doesn’t link to “fechner colors” [0]. I am red-green colorblind, but when I was young I would stare at my dark ceiling fan spinning over the white ceiling and see very vivid greens and purples swimming across the blades.
Re: Impossible color
#6Isn’t it trivial to show impossible colors in VR by texturing an object in different colors like blue and yellow for each eye’s perspective?
Re: Impossible color
#7When adjusting paint colors if what you have is too red “or on the red side” you can correct it by adding green. If what you have is on the blue side add yellow then kind of straighten out the undesirable green by adding a smidge of red. This is the sort of thing a skilled shader technician would do to match automotive or sign paint. I did this for a while for PPG You might find playing with the LAB color scale in ph…
Isn’t brown just a reddish green. Or a greenish red.
Read the article.
Re: Impossible color
#8I’m surprised the section towards them end about alternating high contrast colors producing impossible colors doesn’t link to “fechner colors” [0]. I am red-green colorblind, but when I was young I would stare at my dark ceiling fan spinning over the white ceiling and see very vivid greens and purples swimming across the blades. [0]: https://en.m.wikipedia.org/wiki/Fechner_color
Anecdotally, in my first year of university a tutor of mine did a demonstration on Fechner Colour. We walked into the lab and he had a spinning disc on a motor, that was apparently pink in colour. He asked the class (*first year students) what colours we thought each half of the disc were to create the pink shade. Most people guessed pink and white, while a couple of people had correct guesses..
When he stopped the motor, the disc spun down and it was yellow on one side, and blue on the other.
Re: Impossible color
#9Reminds me of The Color Out of Space.
Re: Impossible color
#10Isn’t it trivial to show impossible colors in VR by texturing an object in different colors like blue and yellow for each eye’s perspective?
Traditional displays (such as what would be used in vr goggles) do not produce yellow light. You only get reddish-green with rgb colors