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this post was submitted on 04 May 2025
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Asklemmy
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Yellow is Red + Green, so half way between Yellow and Green would be what, 50% Red + 100% Green?
Like you said, color is perceptual, and not only will everyone's eyes have a slightly different sensitivity for each wavelength, each display will have a slightly different calibration for its RGB channels.
If the original color was in real life, the camera sensor would also be taking the full light spectrum and collapsing it into 3 RGB values, and the camera sensor's sensitivity/calibration will determine the ratio it converts a yellow wavelength into red and green. (Or maybe the real object isn't actually yellow, but pure red-+green light, it's impossible to tell after converting to RGB)