![background image](http://html1.mh-extra.com/html/barco/sim-7d/sim-7d_user-manual_4241687136.webp)
7. Advanced
Applying a correction in a certain zone also in
fl
uences the adjacent zones.
The hierarchical levels are selected in a way that the
fi
rst hierarchy level in
fl
uences the entire transition from black to white (0% to
100%) with the main correction done at 25%. Below you can
fi
nd the table of the hierarchy levels and their in
fl
uence zone.
Hierarchy level (value 1–4)
Hierarchy level (%)
Gray level range
1
25.0%
0.0% - 100.0%
6.3%
0.0% - 25.0%
2
56.3%
25.0% - 100.0%
1.6%
0.0% - 6.3%
14.1%
3.6% - 25.0%
39.1%
25.0% - 56.3%
3
76.6%
56.3% -100.0%
0.4%
0.0% - 1.6%
3.5%
1.6% - 6.3%
9.8%
6.3% - 14.1%
19.1%
14.1% - 25.0%
31.6%
25.0% - 39.1%
47.3%
39.1% - 56.3%
66.0%
56.3% - 76.6%
4
87.9%
76.6% - 100.0%
The % values in the table indicate measurable brightness on the screen.
7.8.11.2 Illustrating the in
fl
uence of GLD correction
Illustrating GLD correction
Without performing GLD correction, we have a linear response
1
from black to white. This is shown as a green dashed line in the
graph below, where we the horizontal axis represents the signal strength (0% to 100%) and the vertical axis the intensity.
Linear response
Intensity
Signal
0
512
1024
0
25%
50%
75%
100%
Image 7-141
GLD: response curve
The following topics give you an overview of the outcome of the GLD corrections done at different levels.
1. To be fully correct, we will have the gamma response curve instead of a linear response curve. In this explanation, we consider it to be linear however.
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Summary of Contents for SIM 7D
Page 1: ...Barco SIM 7D User Guide R92112071 R92112072 R92112073 R59770198 10 13 02 2013...
Page 8: ...Table of contents 4 R59770198 BARCO SIM 7D 13 02 2013...
Page 10: ...1 Introduction 6 R59770198 BARCO SIM 7D 13 02 2013...
Page 14: ...2 Packaging 10 R59770198 BARCO SIM 7D 13 02 2013...
Page 39: ...4 Installation Image 4 40 Location of the IR receivers R59770198 BARCO SIM 7D 13 02 2013 35...
Page 40: ...4 Installation 36 R59770198 BARCO SIM 7D 13 02 2013...
Page 54: ...5 Setup 50 R59770198 BARCO SIM 7D 13 02 2013...
Page 80: ...7 Advanced Image 7 41 Image 7 42 Image 7 43 76 R59770198 BARCO SIM 7D 13 02 2013...
Page 108: ...7 Advanced Image 7 95 Image 7 96 Image 7 97 Image 7 98 104 R59770198 BARCO SIM 7D 13 02 2013...
Page 154: ...7 Advanced 150 R59770198 BARCO SIM 7D 13 02 2013...
Page 174: ...B GLD alignment 170 R59770198 BARCO SIM 7D 13 02 2013...
Page 176: ...Glossary 172 R59770198 BARCO SIM 7D 13 02 2013...
Page 182: ...List of tables 178 R59770198 BARCO SIM 7D 13 02 2013...