The Display Gamut Available to Simulate Colors Perceived by Anomalous Trichromats

Abstract

The aim of this work was to investigate the effect on a display gamut of varying the optical density and the position of the maximum sensitivity of the cones spectra of anomalous trichromatic observers. The anomalous cone spectral sensitivities were estimated for a set of varying optical density and maximum sensitivity spectra conditions and used to compute the display color gamut. The computed display gamut simulated for normal observers the chromatic diversity perceived by anomalous observers. It was found that even small variations on the optical density and on the position of the maximum sensitivity spectra have an impact on the simulations of the display gamut for anomalous observers. It was also found that simulations for deuteroanomalous observers are the ones with greater impact if the estimation of the corresponding color display gamut is not carefully adjusted for the observer.

Color Vision Improvement of Anomalous Trichromats Based on a Wide-Color-Gamut Display

“…Machado proposed AT can vary from mild to severe depending the amount of shift found in the peak sensitivity of the phtopigments [8]. Linhares found that even small changes in optical density and maximum sensitivity spectral position affect the display color gamut of anomalous observers when the method of visual cell-sensitive curve offset was used [9]. Simulations of anomalous color vision were calculated by fixating the optical density of the M and L cones and varying their spectral position or by fixating the anomalous spectral shift and by independently varying the M or L cones optical density.…”