Calibration - NEC NP-PA600 Series User Manual

In calibration, differences in brightness on the screen are identified and calculations are performed.
Also, for the purpose of the calculations, the contour of the projection image, and the position and shape of the test
image are photographed with a web camera.
If an error message is displayed during the calibration, first check the items listed below.
Item to Check
Has the resolution of each of the
projectors been adjusted?
Has the brightness of each of the
projectors been adjusted?
Is the web camera compatible with the
Multi Screen Tool
?
Is the entire screen gathered within the
photographic range of the web camera?
Are the brightness and contrast of the
images photographed with the web
camera suitable values?

6. Calibration

Cause and Action to Take
It is not possible to use projectors with different resolutions
simultaneously. Use projectors with the same resolution.
Whenever possible, use the same models of projectors for stacking/tiling
correction. If there are differences in brightness between the projectors,
it may not be possible to identify the contours, position or shape of the
test image with certain projected images.
In addition, differences in brightness can also be due to differences in
the projectors' [ECO MODE] settings, so set [ECO MODE] to the same
setting on all of the projectors. For the [ECO MODE] setting, see the
projectors' operating instructions.
Please use a model that is supported by the Multi Screen Tool as listed
on Page 6.
Make adjustments so that the overall projection image can be
photographed as large as possible; for example, move the setup
position of the web camera.
If calibration is not possible with the [Auto Adjust] command at [Setup]
→ [Camera Settings] on the calibration screen, use the utility software
included with the web camera to adjust the brightness and contrast,
then try calibrating again.
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