Judgments of the Visibility of Colors Made from an Underwater Habitat

Abstract

Judgments of the relative visibility of colors were made during the 'La Chalupa' dive from the habitat located in 100 ft of Caribbean water. Judgments made with colored targets viewed against the water background were in agreement with previous studies; that is, bright colors were the easiest to see and dark colors disappeared the most readily. However, when the colors were viewed against a light gray background, dark colors were the nost visible. It appears that negative contrast under water is superior to positive contrast of the same amount. In addition, small diurnal changes were found with green increasing in visibility and orange decreasing as the day wore on.

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Document Details

Document Type
Technical Report
Publication Date
Mar 19, 1974
Accession Number
AD0786323

Entities

People

  • James W. Miller
  • Joann S. Kinney

Organizations

  • Naval Submarine Medical Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Agreements
  • Biomedical Research
  • Brightness
  • Contrast
  • Divers
  • Illumination
  • Judgment
  • Light Sources
  • Long Wavelengths
  • Navy
  • Optical Phenomena
  • Optical Properties
  • Puerto Rico
  • Scattering
  • Short Wavelengths
  • Spectral Energy Distribution
  • Submarines

Fields of Study

  • Psychology

Readers

  • Atmospheric Science/Meteorology
  • Chemistry (specifically Chemical Fluorescence)
  • Educational Psychology