Color vision and the four-color-map problem.

Journal Article (Journal Article)

Four different colors are needed to make maps that avoid adjacent countries of the same color. Because the retinal image is two dimensional, like a map, four dimensions of chromatic experience would also be needed to optimally distinguish regions returning spectrally different light to the eye. We therefore suggest that the organization of human color vision according to four-color classes (reds, greens, blues, and yellows) has arisen as a solution to this logical requirement in topology.

Full Text

Duke Authors

Cited Authors

  • Purves, D; Lotto, B; Polger, T

Published Date

  • March 2000

Published In

Volume / Issue

  • 12 / 2

Start / End Page

  • 233 - 237

PubMed ID

  • 10771407

Electronic International Standard Serial Number (EISSN)

  • 1530-8898

International Standard Serial Number (ISSN)

  • 0898-929X

Digital Object Identifier (DOI)

  • 10.1162/089892900562011


  • eng