78‐3: 2D Representation of Display Color Gamut

Abstract

Display gamuts usually render complex shapes in a uniform color space, requiring observers to change views to comprehend a 3D plot. We propose a 2D representation of a display color gamut, named "gamut rings," where the area within an arbitrary luminance and hue angle range corresponds to gamut volume. KeywordsHigh dynamic range; wide color gamut; color volume; display gamut size

50‐2: Distinguished Paper: Measuring the Color Capability of Modern Display Systems

“…Parts of the gamut are almost always obscured from view. The solution to this problem is a singular new diagram called "Gamut Rings" developed by Masaoka [2]. This diagram unwraps the important 3D volumetric information and lays it flat in a way that provides the information needed to describe the full color capability of modern display technologies.…”

Analysis of color volume of multi‐chromatic displays using gamut rings

“…This section introduces a 2D visualization of the display color gamut, referred to as “gamut rings.” This technique is an azimuthal equal‐volume projection that proportionally converts a gamut volume into “rings” of gamut areas as a function of lightness, represented at the appropriate hue angles. The areal dimension within a lightness and hue angle range corresponds to the gamut volume with the same range.…”

“…This section introduces a 2D visualization of the display color gamut, referred to as "gamut rings." 32 This technique is an azimuthal equal-volume projection that proportionally converts a gamut volume into "rings" of In CIELAB, L* represents the lightness; it is a normalized value such that L* max = 100. To estimate gamut rings, the gamut boundary polygons in the L*a*b* color space are first obtained at 100 different lightness values (ie, L* values ranging from 0.5 to 99.5 in intervals of 1).…”

61‐2: Color Gamut of Multi‐Chromatic Displays

“…Then, they are converted into a*b* coordinates. The loci forming the display gamut boundaries are then transformed into gamut rings [12]. The gamut rings are rendered using a teninterval grayscale tinted with the gamut surface color.…”

“…If we compute an RGBCMY gamut where the CMY secondary colors are on the lines connecting RGB, that device will have the same xy gamut area with a different volume. An alternative approach to calculating, comparing, and visualizing 3D color gamut volumes in 2D plots (i.e., gamut rings) was recently proposed [12]. This technique proportionally converts a gamut volume into "rings" of gamut areas as a function of lightness, represented at the appropriate hue angles.…”