C.O.L.O.U.R. (COLOR)

~Color is an important part of human expression~

～颜色是通过眼、脑和我们的生活经验所产生的一种对光的视觉效应～

Color constancy is an example of subjective constancy and a feature of the human color perception system which ensures that the perceived color of objects remains relatively constant under varying illumination conditions.

A green apple for instance looks green to us at midday, when the main illumination is white sunlight, and also at sunset, when the main illumination is red. (图摄于2008.08.31@1938hrs)