Brightness Perception

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Brightness Perception

• Arash Fazl

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Vision Scientists Favorite Piece of Art
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Light Reflected off a Surface Varies with Ambient
Light
In a Dark Room
In Bright Sunshine
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The Brain Needs to Discount the illuminant
Luminance vs Brightness
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Brain Compares
Simultaneous Contrast Illusion-
http//persci.mit.edu/people/adelson/
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Brain Compares
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Herman Grid
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Scintillating Grid
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Wertheimer-Koffka Ring
Pitting Shape Perception Against Brightness
Perception
http//www.michaelbach.de/ot/
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Simultaneous Contrast FailureMunker-White
Illusion
Pitting Depth Perception Against Brightness
Perception
Darker or lighter surround cannot explain the
illusion
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3D Structure and Brightness
http//web.mit.edu/persci/people/adelson/
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Craik-O'Brien-Cornsweet Illusion