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7. Advanced operations
4. To show blending lines on the screen, put the switch before Show lines to the right. The color of the switch becomes blue when
activated.
5. Specify the start position (offset)(1) for the blending height and width, setup an size value (2) to determine the width of the blending
area.
When the blending lines are activated, you will get a visual indication of the screen of the installed blending area.
2
1
Image 7-22
1
Start position (offset)
2
Blending width
6. First select an offset and click Menu selection to activate the selection.
Use the arrow keys to change the value (the start position of the blending)
Repeat for the other edges if necessary.
7. Select the height or width and setup a size value.
Repeat for the other edges if necessary.
The value will range from 0 to 1.0 (linear to S-curved), with a default value of 0.5.
Example of the use of blending
When projecting an image with 2 projectors, there is always an small overlap that should be corrected by using the blending function.
In order to obtain a satisfying result for the Blend function, the overlap / Blend zone are recommended to be
at least 10% of the picture width.
The basic principle is that the overlap setup in the source shall correspond with the blend width setup for the projector. That means
that if the overlap zone for the source is set to 500 pixels, the width of the blend zone for the projector also must be set to 500 pixels.
First step is to align the image from the projectors as accurate as possible in a mechanical way, meaning without any optical correc-
tions. At the same time, establish an overlap in the pictures between the two screens.
Then adjust the remaining irregularities by using the shift and warp features in the projectors to obtain the last fine tuning of the
alignment.
Enable blending and activate Show lines.
First set the blending width for the right edge of the first projector. Enter a width value equal to the overlap area (width1).
Repeat for the left edge of the second projector.
Adjust the offset to cut the image on each side (masking).
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R5906102 WODAN 15/02/2017
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