[DrStalker]

Does the article mention that images taken with a digital camera (with a few exceptions) only sample 1/2 the green pixels and 1/4 each of the red and blue ones?

http://en.wikipedia.org/wiki/Bayer_filter

There will be more information in the green channel because that is how the camera is built. I'm sure somewhere there is proper research that was was used in developing the Bayer filter that indicates the human eye is more sensitive to green, but this looks like a case of bad methodology ending up with the right conclusion through luck.

[jkic47]

To add to your point, a typical imager pixel can only sense one color - red, green or blue (caveat: there are now some imagers that can simultaneously sense multiple colours). The green value of a non-green pixel is interpolated from the surrounding pixels capable of sensing green. Thus, only 1/3 of your RGB image is "real" - the remaining 2/3 is interpolated.