1 Note that only static cues (as opposed to motion cues) are presented here. A nice review the various depth cues is found in Sensation and Perception by Margaret W. Matlin and Hugh J. Foley, Allyn & Bacon, 1997, p. 165–193.
2 An exception to this is when a strong horizontal element is present, which tends to be perceived as a horizon line. In this case, objects that are closer to the horizon line are perceived as farther away than objects that are distant from the horizon line.
3 The relationship between the degree of blueness and blurriness to distance is a function of experience—i.e., people who live in a smoggy city will have a different sense of atmospheric perspective than people who live in less-polluted rural areas.