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7. Advanced
7.8.11.1 Description
What is Gray Level De
fi
nition?
When matching multi channel systems, the
white level
can be matched using
Dynacolor
and the
black levels
can be tweaked
using
Black Color Matching
. When comparing the gray levels of certain projector platforms there can be a signi
fi
cant difference in
the primary color distribution on different gray levels. This is typically the case for LCD and LCoS projectors; especially when they
reach a certain age they are more sensitive to this artifact.
GLD adjustment allows correcting the gray levels by tweaking the contribution of the primary colors to each gray level (i.e. color
balancing).
How does Gray Level De
fi
nition work?
GLD allows you to adjust the contribution of the primary colors to different gray levels — or zones — to match different display
channels to a reference channel.
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.
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R59770330 SIM 7QP SERIES 07/10/2013
Summary of Contents for 7QP
Page 8: ...Table of contents 4 R59770330 SIM 7QP SERIES 07 10 2013 ...
Page 13: ...2 Packaging 2 PACKAGING Overview Unpacking R59770330 SIM 7QP SERIES 07 10 2013 9 ...
Page 16: ...2 Packaging 12 R59770330 SIM 7QP SERIES 07 10 2013 ...
Page 52: ...4 Installation 48 R59770330 SIM 7QP SERIES 07 10 2013 ...
Page 64: ...5 Setup 2 Now the zoom and focus can be adjusted 60 R59770330 SIM 7QP SERIES 07 10 2013 ...
Page 76: ...6 Getting started 72 R59770330 SIM 7QP SERIES 07 10 2013 ...
Page 196: ...7 Advanced Image 7 157 192 R59770330 SIM 7QP SERIES 07 10 2013 ...
Page 258: ...9 Troubleshooting 254 R59770330 SIM 7QP SERIES 07 10 2013 ...
Page 268: ...A NVG option for SIM 7QP 264 R59770330 SIM 7QP SERIES 07 10 2013 ...
Page 272: ...B NVG option for SIM 7QP HC 268 R59770330 SIM 7QP SERIES 07 10 2013 ...
Page 273: ...C GLD alignment C GLD ALIGNMENT Overview Gamma values R59770330 SIM 7QP SERIES 07 10 2013 269 ...
Page 275: ...D Image files D IMAGE FILES Overview Image files R59770330 SIM 7QP SERIES 07 10 2013 271 ...
Page 280: ...Glossary 276 R59770330 SIM 7QP SERIES 07 10 2013 ...
Page 284: ...Index 280 R59770330 SIM 7QP SERIES 07 10 2013 ...