1 Matching Annotations
  1. Jun 2022
    1. What is color for?" And instead of telling you, I'll just show you. What you see here is a jungle scene, 00:02:08 and you see the surfaces according to the amount of light that those surfaces reflect. Now, can any of you see the predator that's about to jump out at you? And if you haven't seen it yet, you're dead, right? (Laughter) Can anyone see it? Anyone? No? Now let's see the surfaces according to the quality of light that they reflect. And now you see it. So, color enables us to see 00:02:32 the similarities and differences between surfaces, according to the full spectrum of light that they reflect. But what you've just done is in many respects mathematically impossible. Why? Because, as Berkeley tells us, we have no direct access to our physical world, other than through our senses. And the light that falls onto our eyes is determined by multiple things in the world, not only the color of objects, 00:02:56 but also the color of their illumination, and the color of the space between us and those objects. You vary any one of those parameters, and you'll change the color of the light that falls onto your eye. This is a huge problem, because it means that the same image could have an infinite number of possible real-world sources

      BEing journey 2 pattern detection