21
Advanced Colour Adjustments
Image
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Adjustments
Gamma adjustment
Differences between equipment may result in a slight
variation in the colouring when images are projected,
and you may want to adjust this. (Projection will stop
temporarily during such adjustment.) There are two
methods of doing so. One is to select one of the gamma
correction values [2.0], [2.1], [2.2], [2.3], [2.4]. The
other is customized adjustment, which is done with
reference to the projected image or a gamma graph.
The gamma graph's horizontal axis represents the input
signal level and its vertical axis the output signal level.
■
Adjusting from the gamma correction
values
From among the gamma correction values [2.0], [2.1],
[2.2], [2.3], [2.4], select one that suits the connected
equipment, or one of your own liking, using
or
, and press
or
to confirm the selection.
Observe the gamma graph to check the result of the
adjustment.
Lower values will increase the contrast of the dark
portions but will tend to blur the bright portions. This
is indicated by bulging in the upper portion in the
gamma graph.
Higher values will darken the bright portions. This is
indicated by bulging in the lower portion in the gamma
graph.
■
Customized
("Adjust it from the image")
Use
or to select first "Customized", then
"Adjust it from the image". Press
or
to confirm
the selection each time.
A gamma icon will appear in the projected image.
(Keystone correction will be temporarily cancelled
while the gamma icon is displayed.)
Use
or
to move the gamma
icon to the place where you want to adjust the
brightness, and press
or
to confirm the
selection. The place selected and the regions of the
same brightness will flash, and a gamma graph will
appear. Press
or
again to reconfirm. A screen
for adjusting the tone will appear.
Use
or
to make the adjustment, and
press
or
to confirm it. Press
to go back and
do it again.
■
Customized
("Adjust it from the graph")
Use
or to select first "Customized", then
"Adjust it from the graph". Press
or
to confirm
the selection each time.
A gamma adjustment graph will appear.
Use
or
to select the point where you
want to adjust the tone brightness, and press
or
to confirm the selection. A screen for adjusting the
tone will appear.
Use
or
to make the adjustment, and
press
or
to confirm it.