7. Image menu
Default value: 0
Image 7-5
Image 7-6
Effect of sharpness adjust
7.5 Gamma Adjustment
About Gamma correction.
Gamma compensation, or gam m a correction, is a way of adjusting the signal input to light output characteristics of a display or
projector in order to su it the eye’s sensitivity to different light levels and to com pensate for non-linearities in displays. Without gamm a
compensation, images m ay look too dark or too bright, lack detail or depth. By adjusting the amount of gam ma com pensation
changes, you change only t he per ceived brightness levels.
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 mo nitor 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.
1. Enter the m enu Home/Image, and select G am ma.
Image 7-7
2. Use the arrow keys to adjust the G amm a value, until the colors seems to be perceived correctly. The default value is 2,2.
601–426 F70 SERIES 24/10/2017
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