Airflex5D AF5D-20 Panduan Pengguna - Halaman 8

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[4 Corner] can adjust each corner position of the image independently and is the simplest way for the

alignment in multiple projector applications, such as Edge Blending, stacking & 3D display.

Use OSD MENU to activate [4 Corner] adjustment or Press [4 CORN] hot key in Remote Controller

Maximum adjustment range for each corner is ±256 pixels horizontally (max. 300 pixels in Left + Right)

and ±200 pixels vertically (Top + Bottom).

Example for [4 Corner] adjustment:

Activate [4 Corner] menu then select the corner for the adjustment  Press [OK]  activate [PATTERN]

key to show Grid pattern and start [4 Corner] geometry adjustment. After finishing the first corner

adjustment, press [OK]  select next corner  press [OK] then Grid pattern will appear again

automatically and then start further adjustment.

Before [4 Corner] adjustment

8.4 Image [Edge Blend]

8.4.1 Projector with higher contrast ratio is recommended. It will reduce the light leakage in overlap region.

This light leakage will be more obvious in dark environment. it can't be fixed by external signal control.

8.4.2 Use the same projector model and settings.

8.4.3 To align the grid patterns between two images all together with the same size.

8.4.4 To set video wall function through PC display card, AF5D-21 or other video wall controller.

8.4.5 Select the correct edge for image Blending, e.g. LH edge for RH image and RH edge for LH image.

8.4.6 Set [Edge Blend] value based on the overlap pixels (each overlap grid represents 50 pixels).

8.4.7 After above procedures, user can see the result of the edge blending. If the performance is not good

enough, then below procedures can be tried.

--Select different [Gamma] values and check video performance.

--Set right [Offset] value to compensate black level difference between Transition area and

--Non-transition area.

--Eliminate the banding effect via [Shift] blending position.

--Fine tune color from projectors or AF5D if necessary.

After [4 Corner] adjustment

[Edge Blend] is to eliminate the banding effect in

overlap area between two images. Enough

pixels in overlap region (about 10%~20%) are

required to get good result. Before [Edge Blend]

setting, the image should be split and cropped

the right range. Geometry adjustment is also

required. Please see more detailed in

Application note in VNS website.