[X] My Assistant

[stevesliva]

Some of you perhaps saw the internet blow up because people realized their perception of color in an image had nothing to do with the colors of the pixels.
There's a good summary of the issue here, along with some great discussion of why the mind uses perceived illumination to determine the "true color" (dun-dun-duuuun) of the object in the photograph.

This all brought back to mind the discussion that ended more or less here. I called the brain's adjustment a "ski goggle effect."

It's interesting that so simple a case could illustrate that what your brain decides to do with Mars illumination. Should you ever go there and walk around with a transparent globe on your head you may perceive a lot more color and contrast than you would perceive on Mars looking out the window of a white spacecraft interior dimly lit with broad spectrum light... so with images, that begs the question: do I make this a window, or make it immersive?

[dvandorn]

True. But fabrics are not judged by a physics definition of black bodies. A "black" fabric is simply relatively non-reflective, but under the right kind of lighting, and with the right kind of fabric (especially any kind with a soft or "roughened" surface, like velvet), it can reflect ambient light in such a way as to appear brownish, or reddish, or even bluish.

Under the Wikipedia definition, there really are no "black" fabrics or materials of any kind in our everyday life. Shine a bright light on any "black" item in your house, and you'll see.

-the other Doug