Gaussian bars and rectangular bars: The influence of width and gradient on visibility

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The visibility of single bars with a Gaussian luminance profile was measured and compared with visibility of rectangular bars. Narrow Gaussian bars were approximately as easy to detect as narrow rectangular bars, but wide Gaussian bars were much harder to detect than the corresponding rectangular bars. More than one mechanism is required to account for the dependence of bar sensitivity on width.

Original languageEnglish (US)
Pages (from-to)1457-1462
Number of pages6
JournalVision research
Issue number12
StatePublished - Dec 1974

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

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