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Chapter 8 - Irradiation and Brightness-Contrast In Optical IllusionsMany interesting and striking illusions owe their existence to contrasts in brightness. A dark line or spot will appear darker in general as the brightness of its environment is increased; or conversely, a white spot surrounded by a dark environment will appear brighter as the latter is darkened. In other words, black and white, when juxtaposed, mutually reinforce each other. The visual phenomenon of irradiation (the apparent enlargement of a bright object when viewed against a dark background) does not strictly belong to this group, but it is so closely related to it and so dependent upon brightness-contrast that it is included. Click the link below to start reading this chapter.
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About This Book
Preface
Chap 1, Introduction
Chap 2, The Eye
Chap 3, Vision
Chap 4, Geometrical
Chap 5, Figures
Chap 6, Angles
Chap 7, Depth/Distance
Chap 8 Brightness/Contrast
Chap 9, Color
Chap 10, Lighting
Chap 11, Nature
Chap 12, Painting/Decorating
Chap 13, Architecture
Chap 14, Magic Mirror
Chap 15, Camouflage
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