Chromatic Issues

1
Chromatic Issues

• The Trichromatic Theory
• Color Picker
• The Color Gamut
• Glare
• Color Blindness

2
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 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
8
Color Blindness
9
Color Blindness
10
How to handle

• Screening questions?
• Large sample and random assignment
• Pre-test on color blind