Barco HDF-W30LP, User And Installation Manual

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17. Alignment
17.7.3 Start up manual adjustment
How to start up
1. Press Menu on the remote control (RCU) or on the local keypad to activate the menus and select Alignment → Warp ing → . Warp
adjust .
The Warp adjust menu opens.
The content of this warp adjust menu depends on the selection. When no warp was done before, the menu starts as a sort of
wizard by opening only the warp area pane. It opens more and more panes depending on the selection. When manual warping
was done before the menu opens with the same layout as it was last used.
A warp grid and adjustment points is displayed on the screen. The maximum grid is 32 points by 32 points.
Image 17-13
Warping, Warp adjust
Image 17-14
Warp area
Warp adjust menu, general icons
1 2 3 4 5 6 7
Image 17-15
1 Undo / redo icon
2
Grid initialization (reset grid to original)
3 Increase the number of points. The current number of points (mode) is indicated with a digit inside the icon. By default 3
points are shown.
4 Reduce the number of points. The current number of points (mode) is indicated with a digit inside the icon.
5 Remove / show grid
6 Remove / show points
7 Hardware reset of warp module
17.7.4 Warp adjustment principle
Description
Warping adjustment enables the relocation of pixel groups in an image in order to introduce spacial distortion. To make the
procedure comprehensible, there are some rules and features.
The use of warping adjustment leads to image quality loss! The more geometry adjustment is applied, the
more quality loss.
Moving an anchor point causes pixels in the same region to be moved gradually with this one pixel, depending on their distance to
it. The size of the region of impact depends on the anchor point: some anchor pixels have impact on the full image, while others
have impact on a small area only. The full image is divided in
33 x 33 regions . The smallest region of impact is one of these 1089
regions.
182 R5906730 HDF WLP SERIES 01/08/2017