A study on the user perception to color variations

  • Authors:

  • Marco V. Bernardo;António M. G. Pinheiro;Manuela Pereira;Paulo Torrão Fiadeiro

  • Affiliations:

  • Universidade da Beira Interior, Covilhã, Portugal;Universidade da Beira Interior, Covilhã, Portugal;Universidade da Beira Interior, Covilhã, Portugal;Universidade da Beira Interior, Covilhã, Portugal

  • Venue:
  • Proceedings of the 20th ACM international conference on Multimedia
  • Year:
  • 2012

Quantified Score

Hi-index 0.00

Visualization

Abstract

A study on the perceived quality of images displayed with color changes is presented. Under the D65 standard illuminant colors are changed in the CIE 1976 (L*a*b*) color space, with the application of a predefined chromatic error ΔE*ab. The colors were initially divided into clusters with the K-Means algorithm. Each color cluster is shifted by the predefined chromatic error with a random direction in a*b* chromatic coordinates. Applying the ΔE*ab errors of 3, 6, 9, 12 and 15 units to the five hyperspectral images a set of modified images was collected. Those images were shown to individuals, that were asked to rank those images quality based on their naturalness. The Medium Opinion Scores was computed and allowed to test and quantify the sensibility to color changes.