_dauntless
_dauntless t1_iyjqre5 wrote
Reply to comment by badassbadger42 in Is there a consistent and objective way to assess the color of an object? A transform function from spectrum to RGB, maybe? by DJTilapia
Uh, it's an approach specifically designed to take lighting into account. It can only appear as the correct gray if you adjust for the type of lighting. The idea that different light has different colour temperatures is not a new thing to photographers lol
_dauntless t1_iyj4df5 wrote
Reply to Is there a consistent and objective way to assess the color of an object? A transform function from spectrum to RGB, maybe? by DJTilapia
Some of the others touch on this approach, and photographers have been doing it for quite some time: a gray card.
In order to calibrate both lighting and color balance, you basically take a gray card of known value and you place it next to the subject. Now in post-processing, you can know what an 18% gray value should look like, and this will help you achieve an accurate depiction of what was there.
It's not super scientific, but I imagine it would be just a more accurate version of that. Similar to how science defines time based on the vibration of a specific caesium isotope. You have one agreed-upon reference, and everything else derives from that.
_dauntless t1_iw0e48h wrote
Reply to Scientists show for the 1st time that monkeys that are more sociable – eg, grooming or being groomed more often, & with more grooming partners – have a healthier gut microbiome.This is further evidence that in primates, social connectedness translates into good physical & mental health, & vice versa by MistWeaver80
The title and article both make it seem like being sociable leads to better gut biomes, when the study just shows that they're correlated.
_dauntless t1_iynzuwn wrote
Reply to comment by badassbadger42 in Is there a consistent and objective way to assess the color of an object? A transform function from spectrum to RGB, maybe? by DJTilapia
Hmm, that's an interesting concept to think about, but my grey card example was an analogy, not a solution. To the degree that using a physical object of a known color value along with an adjustment of white balance to adjust the resulting image, photographers are able to create colour-accurate images. It sounds like you're getting at what I was guessing at, which is a higher degree of accuracy, though.