Black Level; Introduction - Barco NH-12 User Manual

7. Advanced
6. Push the cursor key ← or → to highlight Edit...
Image 7-165
7. Press ENTER
A dialog box will be displayed.
8. Use the arrows to select the Alpha planes check box and press ENTER
Image 7-166
Note: It will take a certain time for the alpha plane to be applied
7.9.7.5

Black level

Overview
•

Introduction

• Internal black level
• Beta planes
7.9.7.5.1 Introduction
Brightness uniformity
In a multi channel system the brightness can vary over the different channels/projectors. The brightness level can be matched using
:
1. CLO: in this case the light power is matched over the different projectors, see CLO in the Lamps section
2. Black level : this will act on the brightness of the "black" color of the image part situated outside the soft edge zones.
144 R59770121 NH-12 04/05/2011