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7. Advanced operations
4. Determine the start position of the mask (1) for the masking height and width, together with the desired size of the mask (2) to
determine the width of the masked area.
When the blending lines are activated, you will get a visual indication of the screen of the installed blending area.
1
2
Image 7-46
1
Start position (mask)
2
Blending width
5. Select one of the four starting positions values with the arrow keys and con
fi
rm.
6. Use the arrow keys or remote digits to change the value of the mask and con
fi
rm.
7. Repeat this process for the desired width/height value.
8. Repeat this process for all other desired sides.
Do not forget to disable the Show lines button after you achieved the desired blend zone.
Example of the use of blending
When projecting an image with 2 or more 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 / mask 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 mask width setup for the projector. That means
that if the overlap zone for the source is set to 500 pixels, the width of the mask 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
fi
ne tuning of the
alignment.
Enable blending and activate Show lines.
First set the mask width for the right edge of the
fi
rst 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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Содержание Wodan
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