That's pretty cool. In a similar but very different vein: A few years ago I took twenty years of daily satellite imagery and computed the mean color for countr

That's pretty cool. In a similar but very different vein: A few years ago I took twenty years of daily satellite imagery and computed the mean color for countries and the world https://www.landshade.com/ https://www.landshade.com/ But in doing that you really do notice how everything concerning colors is just a bit arbitrary. You get raw reflectances from a scientific sensor on a satellite with specific spectral bands and sensitivity within those bands. And then you try and map this scientific sensor to the sensor that is your eyes, to try and emulate what we would actually see if shot up into space. There's some really cool science around that if you're a color nerd: https://www.sciencedirect.com/science/article/pii/S0034425719300422 https://www.sciencedirect.com/science/article/pii/S003442571...