UD100 User Guide Document: UD100-3
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i. To execute [Transition] Gamma adjustment: start from one color in one channel first.
After see some difference, then adjust other two colors. Try to do the same in the
second channel.
ii.
[Gain] Gamma adjustment: if Transition Gamma adjustment still can’t fix the issue,
try to adjust Gain Gamma. It will change gamma curve in each projector. Starting
from one channel in one color first, then to do other two colors adjustment.
iii. [Offset] gamma: When implement black level uplift, [Offset] gamma can change the
brightness in overlap region borders if some brightness gap happens between
overlap and non-overlap areas.
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[Shift] adjustment: If user sees dark line at the edge of the overlap region, to adjust few
pixels (1-
10) at “–“ value will change the color at the border.
-
[Color] under [Blend] menu: If user sees background color difference when apply pure
white image, user can adjust [Color] to balance background color difference.
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Image Properties: To select Preset Mode to Neutral or Bluish may improve banding
condition but it will change whole image color temperature.
✓
Screen: To use lower gain value screen.
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Low gain value screen will improve banding effect in overlap region but will reduce total
image brightness.
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Short throw projectors with high gain screen may cause banding effect when watch
from different viewing angles due to different reflection intensity.
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User needs to carefully select the transparent screen for projection from rear when
using ultra-short throw ratio projector. Due to big reflection angle, the transparent
screen should be test before installation.
