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Dividing the Linux desktop
LWN.net Weekly Edition for June 13, 2013
A report from pgCon 2013
Little things that matter in language design
Because YOUR EYES don't perceive colour consistently! So if you want a consistent experience, the monitor needs to change.
Try this experiment. Place a yellow banana on a piece of yellow paper. They're both yellow, aren't they ... ?
Now illuminate it under red light. The paper is now orange, but the banana is still yellow!
Colour perception is very much an ART, not a science (well, it is science, but it's random and statistical, not exact).
Hughes: Introducing the ColorHug open source colorimeter
Posted Nov 15, 2011 0:18 UTC (Tue) by nix (subscriber, #2304)
stochastic sensor placement
Posted Nov 15, 2011 14:30 UTC (Tue) by tialaramex (subscriber, #21167)
Suppose you're looking at, for example a distant checkerboard pattern. If you use a perfect rectangular grid of sensors at certain distances, you will "see" patterns that don't really exist because of the regularity of your sampling. If you instead "randomly" place the sensors according to a rule that limits their proximity you completely avoid this problem.
Pixar's Photorealistic Renderman (and presumably many other modern 3D rendering systems) likewise uses multiple stochastically chosen sample origin points for each pixel, with the same result - no aliasing.
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