PHYS 106 Study Guide - Midterm Guide: Pointillism, Cmyk Color Model, Dominant Wavelength
6 May 2017
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Chapter 7. 1-7. 8: the human eye and vision: how the brain processes images. O"brien and the hermann grid illusions exploit how we rely more on edges for information about the uniform region between them that form whole images. As a result we think smaller objects are further away: convergence: the object"s image is processed in both eyes at a combined angle (how much your eyes converge. When we see different shades of brightness we assume different distances from a light source: shadows: while a light source illuminates an object, it will not illuminate objects behind it. Shadows make one object appear to be in front of another, and the shadow size determines the depth between them: sharpness: distance objects appear fuzzier, less sharply focused. Artists use this technique by creating less detail on distant objects: overlay: we perceive one object to be farther than another if the second object blocks our view of the first.
