15. Image Alignment
Image15-1
Noisereduction adjustment
15.2.2.4 GAMMA CorrectionAbout GAMMA Correction
Gammais an image quality enhancement function that offers a richer image by brightening the darker portions of theimage without
alteringthe brightness of the brighter portions. Tablebelow explains the different value ranges.
GammaValue Influenceon the displayed image
γ=2.2 Thisis the standard value. Withreference to the eye perception, the displayed image is the most natural
image. (Best match between camera recording, projector display and human eye).
1.0< γ<2.2 A lower value enha ncedthe details in the dark image content, without changing the black level, resulting
in a lower contrast perception.
2.2> γ>3.1 A higher value oc curs a fade awayof the details in the dark image content, without changing the black
level, resultingin a higher contrast perception.
How to set up the correct GAMMA value
1. From the Picture tuning menu, select item GAMMA. (menu 15-9)
TheGAMMA barscale appears on-screen and in the graphical display. The GAMMA level is adjustable in 7 steps. (image15-2)
2. Press cursor k ey ←,→(RCU) or rotate selectionw heelto the left or to the right until desired value is displayed.
3. Press EXIT or selection wheel toreturn.
PICTURE TUNING
CTI [ON]*
COLOR TEMPERATURE*
GAMMA
DECODING [EBU]
DYNAMIC COLOR DEPTH*
NOISE REDUCTION
INPUT BALANCE
Select with ↑or ↓
then <ENTER>
<EXIT> to return
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78 R5976519 ACSAR 12122002