Title

Face-Based Luminance Matching For Perceptual Colormap Generation

Keywords

Brightness Matching; Color Scales; Colormaps; Isoluminance; Perceptually-based Visualization

Abstract

Most systems used for creating and displaying colormap-based visualizations are not photometrically calibrated. That is, the relationship between RGB input levels and perceived luminance is usually not known, due to variations in the monitor, hardware configuration, and the viewing environment. However, the luminance component of perceptually based colormaps should be controlled, due to the central role that luminance plays in our visual processing. We address this problem with a simple and effective method for performing luminance matching on an uncalibrated monitor. The method is akin to the minimally distinct border technique (a previous method of luminance matching used for measuring luminous efficiency), but our method relies on the brain's highly developed ability to distinguish human faces. We present a user study showing that our method produces equivalent results to the minimally distinct border technique, but with significantly improved precision. We demonstrate how results from our luminance matching method can be directly applied to create new univariate colormaps.

Publication Date

1-1-2002

Publication Title

Proceedings of the IEEE Visualization Conference

Number of Pages

299-306

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

0036458234 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0036458234

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