Reproducing room appearance on displays

Abstract

This paper aims to successfully reproduce a real lit environment as an image on a self‐luminous computer display. The International Commission on Illumination‐recommended color appearance model CIECAM02 was used as the core of the whole reproduction system. Two experiments were conducted: to verify the values of the surround parameters specified in CIECAM02 and to produce equal perceived brightness between the room and the computer display by adjusting the illuminance level of the lighting in the room to match that of the displayed image.

Unique hue judgments using saturated and desaturated Munsell samples under different light sources

“…In CIELAB or CAM02‐UCS, colors with chromaticities lying on a line (i.e., iso‐hue line) through the origin of the a *‐ b * or a ′‐ b ′ planes are judged to have an identical hue irrespective of lightness and chroma . Both the hue angles in the color appearance models and the iso‐hue lines in the uniform color spaces play important roles in various color‐related applications, such as light source color rendition, cross media color reproduction, and gamut mapping …”

“…1 In CIE-LAB or CAM02-UCS, colors with chromaticities lying on a line (i.e., iso-hue line) through the origin of the a*-b* or a 0b 0 planes are judged to have an identical hue irrespective of lightness and chroma. 1,2 Both the hue angles in the color appearance models and the iso-hue lines in the uniform color spaces play important roles in various color-related applications, such as light source color rendition, 3,4 cross media color reproduction 5 , and gamut mapping. [6][7][8] Great efforts have been made to determine the unique hues through psychophysical experiments, in which observers selected the samples with the four unique hues from a series of color samples under standard illuminants.…”

Unique Hue Judgments Under Light Sources With Different Chromaticities

“…Unique hue, an important concept in color science, plays an important role in developing color appearance models and uniform color spaces, which significantly affects various color-related applications, such as cross media color reproduction [1]., light source color rendition characterization [2,3], and gamut mapping [4][5][6]. Great efforts have been made to determine the unique hues through psychophysical experiments by asking observers to select samples with the four unique hues from a series of color samples.…”