Digital typography: an introduction to type and composition for computer system design
Digital typography: an introduction to type and composition for computer system design
ACE: a color expert system for user interface design
UIST '88 Proceedings of the 1st annual ACM SIGGRAPH symposium on User Interface Software
Computer graphics: principles and practice (2nd ed.)
Computer graphics: principles and practice (2nd ed.)
Device-dependent image construction for computer graphics
Device-dependent image construction for computer graphics
APGV '06 Proceedings of the 3rd symposium on Applied perception in graphics and visualization
Presence: Teleoperators and Virtual Environments - Special issue: IEEE VR 2005
ACM SIGGRAPH 2006 Research posters
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Luminance contrast is the basis of text legibility, and maintaining luminance contrast is essential for any color selection algorithm. In principle, it can be calculated precisely on a sufficiently well-calibrated display surface, but calibration is very expensive. Consequently, most current systems deal with contrast using heuristics. However, the usual CRT setup puts the display surface into a state that is relatively predictable. Luminance values can be estimated based on this state, and these luminance values have been used to calculate contrast using the Michelson definition. This paper proposes a method for determining the contrast of colored areas displayed on a CRT. It uses a contrast metric that is in wide use in visual psychophysics and shows that the metric can be approximated reasonably without display measurement, as long as it is possible to assume that the CRT has been adjusted according to usual CRT setup standards.