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> Often what many think of as white is white mixed with blue. This is super evident after properly calibrating the white point of a (good) TV. Most casual viewe
by jwestbury 4y ago
> Often what many think of as white is white mixed with blue. This is super evident after properly calibrating the white point of a (good) TV. Most casual viewers will say that the whites are now yellow/orange but in reality they are just used to always looking at white with a lot of blue mixed in.
"White" is tricky, because it's dependent on color temperature of the light which is illuminating the given surface. If someone is used to viewing white objects under daylight, but you're calibrating their TV to match the color temperature of their indoor environment (which proper calibration should do), then the "white" displayed on their TV will be a fundamentally different color from the "white" they see reflected off a white surface outside.
This effect is going to be found to be doubly true if you're calibrating to indoor lighting in the evening, but they watch their TV at noon in the daylight with the windows open -- because the color temperature of the environment will now be much higher than the color temperature of the screen.
- euroderf 4y agoIt seems to be a kind of common knowledge that a bit of blue makes a white look whiter. I wonder if there's any studies done on this tho.
- joncrocks 4y agoMight be relevant: https://en.wikipedia.org/wiki/Optical_brightener https://en.wikipedia.org/wiki/Optical_brightener
- brookst 4y agoThat’s color temperature. A bit of blue makes white look more like white does in direct sunlight, which we think of as whiter. A but of orange will make white look more like white does in the evening, or in firelight.