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Message:: [QUOTE="-jeffB, post: 2759715, member: 27832"]Cameras have made huge strides, but as it turns out, eyes and brains have pretty much stayed the same. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie2" alt=";)" unselectable="on" unselectable="on" /> Our eyes and brains are wired to extract a huge amount of information from motion. One of my grad-school projects was a program to demonstrate the concept of "structure from motion" in perception. The program displayed white points against a black background. Without motion, they looked like random spots; with motion, it was clear that they were distributed on a rotating 3D surface (a cone, a cylinder, or a sphere). In a still image, you needed quite a lot of points to tell which was which. With animation, you needed three. That demo was extremely simple, but motion perception is anything but. Motion makes it easy to look past noise, quantization (low resolution or low number of colors/intensities), and foreground/background distractions. The animations in this thread show it a lot more clearly than any words I can put down. Indeed it does. With an untoned silver or copper coin, you might lose very little information. With colorful toning, you'd have to sacrifice more -- but again, you'd gain it back, with interest, by engaging the structure-from-motion parts of the brain.[/QUOTE]