Use Gamma Curves - Barco F50 User Manual

8.6

Use gamma curves

About
Main menu — Picture — Gamma
Gamma compensation, or gamma correction, is a way of adjusting the signal input to light output characteristics of a display or
projector in order to suit the eye's sensitivity to different light levels and to compensate for non-linearities in displays. Without gamma
compensation, images may look too dark or too bright, lack detail or depth. By adjusting the amount of gamma compensation
changes, you can change not only the perceived brightness levels, but also the ratios of red to green to blue.
Different types of displays have different gamma factors that need to be corrected in order to look and be perceived the same. For
example, an MS Windows generated image displayed on a CRT monitor will require a gamma correction value of about 2.5 to avoid
color bleaching and burning.
The gamma curve correction formula is based on output level = input level ^ gamma.
Gamma curves
The projector has a range of built-in gamma curves, available at Main menu — Picture — Gamma.
The name of the curve, for example, Computer 1, describes the recommended use.
Some curves are reserved for Advanced or Service users, and will only be viewable after the access code is input.
Using any of the computer curves for video applications will results in significant image noise.
Computer 1
Input
Film 2.4
Input
Image 8-1
601–0307–00 F50 25/02/2016
Computer 2
Input
Film 2.6
Input
8. Set up the picture
Film 2.2
Input
Film 2.8
Input
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