I lecture it was talked about how the banana looks yellow in this picture even though it is ostensibly green because we are accommodating the color. Is this a purely mechanical phenomenon of vision or is it also affected by our human knowledge as well? What I mean by that is that, because I know that bananas are yellow, I am going to assume that the banana is yellow. The same goes for the garlic. lemons, and apple in the scene, I know what color they are supposed to be. Is part of the reason I am seeing them that way because of this previous knowledge?
saltyminty
Is this the same reason why putting tints on photos/screens/lenses (ie night shift on computers, strong tints on sunglasses/goggles/etc) doesn't change the color appearance of objects too significantly? Since we tend to adjust to it pretty quickly
Staffyirenng
@AlexSchedel Good point. It is true that human knowledge and contextual expectation can participate in shaping our perception of color. I'm not 100% sure in this case, though I suspect it is not the main effect -- e.g. bananas commonly come in both green and yellow levels of ripeness. In any case, the chromatic adaptation phenomenon shown here occurs even in the absence of contextual clues about what the true colors are.
I lecture it was talked about how the banana looks yellow in this picture even though it is ostensibly green because we are accommodating the color. Is this a purely mechanical phenomenon of vision or is it also affected by our human knowledge as well? What I mean by that is that, because I know that bananas are yellow, I am going to assume that the banana is yellow. The same goes for the garlic. lemons, and apple in the scene, I know what color they are supposed to be. Is part of the reason I am seeing them that way because of this previous knowledge?
Is this the same reason why putting tints on photos/screens/lenses (ie night shift on computers, strong tints on sunglasses/goggles/etc) doesn't change the color appearance of objects too significantly? Since we tend to adjust to it pretty quickly
@AlexSchedel Good point. It is true that human knowledge and contextual expectation can participate in shaping our perception of color. I'm not 100% sure in this case, though I suspect it is not the main effect -- e.g. bananas commonly come in both green and yellow levels of ripeness. In any case, the chromatic adaptation phenomenon shown here occurs even in the absence of contextual clues about what the true colors are.
@saltyminty -- yes!