The role of lightness, hue and saturation in feature-based visual attention

Abstract

Visual attention is used to select part of the visual array for higher-level processing. Visual selection can be based on spatial location, but it has also been demonstrated that multiple locations can be selected simultaneously on the basis of a visual feature such as color. One task that has been used to demonstrate feature-based attention is the judgement of the symmetry of simple four-color displays. In a typical task, when symmetry is violated, four squares on either side of the display do not match. When four colors are involved, symmetry judgements are made more quickly than when only two of the four colors are involved. This indicates that symmetry judgements are made one color at a time. Previous studies have confounded lightness, hue, and saturation when defining the colors used in such displays. In three experiments, symmetry was defined by lightness alone, lightness plus hue, or by hue or saturation alone, with lightness levels randomised. The difference between judgements of two- and four-color asymmetry was maintained, showing that hue and saturation can provide the sole basis for feature-based attentional selection.

Effects of saturation and contrast polarity on the figure-ground organization of color on gray

“…Data from recent visual studies indeed suggest that feature-based selection for attention can be based on any aspect of color contrast. Hue alone may be used independently of lightness in displays with multiple colors, and saturation may be used in displays where color is held constant (Stuart et al, 2014 ), as was the case in our displays here.…”

Perceived color quality: The effect of light reflection brightness of a car’s exterior design on consumers’ purchase intentions

“…45 However, color is not defined solely by hue. The following three dimensions define color: hue (e.g., green, red, blue, or yellow), saturation (color intensity or saturation), and lightness (perceived intensity of the light 9,10 ). As mentioned previously, hue produces various effects.…”

“…The dimensions that define color include hue, saturation, and lightness. 9 However, color comprises other aspects, such as gloss (light reflection)-a visual aspect of quality that depends on the ability of the surface to reflect light. 10 Compared to hue, saturation and lightness, and despite its common use as a design method in the practice of the automobile industry, research on light reflection brightness remains surprisingly scant.…”

Spatiotemporal Modeling of Lifting Task Scheduling for Tower Cranes With a Tabu Search and 4-D Simulation

“…The tabu search has been widely and effectively used in the field of scheduling optimization and shown good computational performance (Edwards et al, 2015;Abdelaziz and Mir, 2016;García de Soto et al, 2017); therefore, it is applied in this study. The hue and value are both the attributes of color, the hue refers to the appearance of color (e.g., red, green, blue), and the value refers to the brightness of color (e.g., dark red, medium red, light red) (Stuart et al, 2014;Logvinenko et al, 2015;Emery et al, 2017). Colors with different hues and values can convey information intuitively and effectively (Einakian and Newman, 2019), so it is combined with 4-D simulation to display lifting task scheduling for tower cranes, and schemes at different levels of detail are designed to meet the specific need of the project team.…”