Specify a light source and an observer angle
Different light sources make colors appear differently. When converting spectral data to the L*a*b* color space, Verifier takes the light (illuminant) setting and the observer angle into account. You can select a light source and an observer angle.
Verifier has three light settings:
D-50 (5000 K) is the international norm for horizon sunlight on a clear morning/evening.
D-65 (6504 K) represents midday light (noon).
C (6774 K) stands for average daylight, excluding ultraviolet radiation.
The angle of view affects the color sensitivity of the eye. The standard viewing angle is 2°, but 10° is sometimes used in the packaging or textile industry.
- Start Verifier, click Preferences, and click the General tab.
- Under General, click a light source for spectral data conversion.