G-700
46
Select correct Edge for the edge blending:
LH projector: RH edge, Center projector: RH & LH edge, RH projector: LH edge
RED and GREEN color indicating lines will appear when increase edge blending pixels.
User needs to adjust the color indicating lines to match together (green to green, red to red) and
will see the final result.
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Color fine tune under [Edge Blend] menu:
Select different [Gamma] values and check video performance.
Set right [Offset] value in Non-Transition area to compensate black level difference.
Apply [Corner].function to fine tune the location for black level [Offset] position.
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Black level uplift:
If the ambient light is dark, audience will see grey region in Edge Blending area. It is due to light
leakage from projector optical system. Low contrast ratio projector will be more serious. Please
apply [Offset] menu to uplift the color in non-transition area and [Corner] menu to do accurate
position alignment.
Under [Offset] menu, user can try [Gain] and [Offset] color compensation to let non-transition and
edge blending area to have the same color. After this step, user will see grey bars near the
borders of edge blending area. User can use [Corner] to eliminate these grey bars.
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Image quality fine tuning
The final performance will be a combination of many factors—projector characteristics, projector
setting, screen, ambient light and GeoBox setting.
Banding in overlap area under dark environment is caused by light leakage in the projector optic
system. It is not possible to be fixed by signal manipulation. The only way is to raise the black
level in none transition area through [Offset] menu.
GeoBox edge blending default setting is for projector with 2.2 gamma settings. To select projector
display mode near 2.2 gamma setting will get the best result.
The projector may retain light leakage near the border of the imager. It is not possible to be fixed.
The factors affect final image quality
i.
GeoBox settings:
Edge Blending settings: Gamma, gain, Offset, Color
Image Properties: To select Preset Mode to Neutral, sRGB or Bluish
Individual projector color adjustment [Color] function under [Edge Blend] menu.
ii.
Projector:
To adjust image position of the projector and reduce keystone angle.
Increase Overlap region & reduce off axis angle
To change Display Mode, usually Standard, sRGB/Neutral will get better result.
Try different color settings. If necessary to use 3D color adjustment in the projector.
iii.
Screen: To use lower gain value screen.
