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Seeing Black and White$
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Alan Gilchrist

Print publication date: 2006

Print ISBN-13: 9780195187168

Published to Oxford Scholarship Online: September 2007

DOI: 10.1093/acprof:oso/9780195187168.001.0001

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Computational Models

Computational Models

(p.189) 7 Computational Models
Seeing Black and White

Alan Gilchrist

Oxford University Press

The computer revolution produced two quite different streams of work on lightness perception. These streams are represented by decomposition models and brightness models, respectively. Perhaps the sharpest difference between these streams concerns their treatment of physiology. If the brightness models were driven by physiology, the decomposition models were driven by veridicality. While the decomposition modelers saw in the computer revolution a chance to deduce, just like those working in machine vision, the logical steps necessary to derive veridical lightness percepts from proximal input without concern for physiological data, the brightness modelers saw it as a chance to create computer models of neural functions.

Keywords:   computational models, lightness, brightness, decomposition models, luminance, edges

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