Thresholds of color attribute differences in detecting camouflaged textures

Yukio Yamashita, Philsu Lee, Shoji Sunaga

Research output: Contribution to journalArticlepeer-review

Abstract

We examined the threshold at which a camouflaged color texture pattern (target) embedded in a surrounding colored texture pattern (background) was discriminated by making the difference between their color distributions serve as a cue. The texture consisted of 900 colored disks. The color applied to the disk was chosen from a normal distribution with the mean and the standard deviation set beforehand. The mean of the background's distribution was a standard achromatic color set at L*=40, u*=0, and v*=0 of CIELUV. In experiment 1, the mean of the target's color distribution was shifted from the background's one. The threshold for the mean of the targets color distribution depended on the standard deviation and increased as the standard deviation became bigger. In experiment 2, the standard deviation of the target's color distribution was shifted. There was the slight dependence of threshold of the standard deviation of the target's distribution on that of the background's distribution. In experiment 3, both of the mean and the standard deviation of the target's color distribution were shifted at the same time. The threshold was not determined by each of the mean and the standard deviation independently. There seemed to be some compensating contribution between them to each other. The threshold could be characterized by Doyle metric or modified Doyle metric.

Original languageEnglish
Pages (from-to)237-241
Number of pages5
JournalJournal of physiological anthropology and applied human science
Volume23
Issue number6
DOIs
Publication statusPublished - Nov 2004

All Science Journal Classification (ASJC) codes

  • Social Sciences(all)

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