1. Chromatic Issues Chromatic Issues The Trichromatic Theory The Trichromatic Theory Color Picker Color Picker The Color Gamut Glare Color Blindness

2. The CIE Color System The CIE Color System  A set of Equations that allow predictions of matching.  Used in photo printing, TV and film.  Wyszecki & Stiles (1967)  The Color Gamut  The range of colors reproducible by any system

3. The Color Gamut  The range of colors reproducible by any system

4. The Effect of Illuminance on Gamut In Dark With Lights on and 30% Luminance Level

5. Illuminance  Agostini & Bruno (1996)  Accuracy of the perceived stimulus is affected by the amount of illuminance.  D. F. Neri (1990)  Combination of light and gamut changed chromaticity  Request close windows and turn off unnecessary light  Do not use subtle color differences

6. Color Blindness Description

7. Color Blindness

10. How to handle  Screening questions?  Large sample and random assignment  Pre-test on color blind