25
When to use the adjustments:
Output
Gamma Correction
If you have already adjusted the color balance of your projector’s Offset and Gain controls and the final result
still isn’t accurate enough, you can use the separate R, G and B
Gamma Correction tools
to compensate.
This will allow you to fine tune the color of grey at 20 different points in the greyscale ramp if using the
User
setting, or you can use the predefined curves: Standard; Low IRE; High IRE or S-Shape. (see
Section
5.2.3
).
Use a mixture of
Video Test Patterns
found in the
Color Temp 1, 2 and 3
sections during these adjustments.
This setting is stored per output and can be saved as part of an
Output Profile
.
Output
Color
Adjust Primary Color
A pure red image means its G and B values are minimal. If a pure red image doesn't look pure red, we can
adjust
Primary Color R
. For example, if a pure red looks a bit green, we can decrease
Primary Color Red
R-to-Green shift
.
Use the
Video Test Patterns
found in the
Color Temp 3
section during these adjustments.
This setting is stored per output and can be saved as part of an
Output Profile
.
Image
Color Temperature
Bias
If a dark grey (or black) image doesn't look or measure as neutral, we can use one or two of the
Bias
sliders
to adjust. For example, if a dark grey image looks slightly red, we can decrease
Red Bias
to compensate.
It is best to use test patterns from your source devices (for example a Calibration DVD such as Digital Video
Essentials or AVIA: Guide to Home Theater) during these adjustments.
This setting is stored per input and can be saved as part of an
Image Profile
.
Image
Color Temperature
Gain
If a light grey (or white) image doesn't look or measure as neutral, we can use one or two of the
Gain
sliders
to adjust. For example, if a dark grey image looks slightly red, we can decrease
Red Gain
to compensate.
It is best to use test patterns from your source devices (for example a Calibration DVD such as Digital Video
Essentials or AVIA: Guide to Home Theater) during these adjustments.
This setting is stored per input and can be saved as part of an
Image Profile
.
Image
Gamma Correction
This functions in exactly the same way as
Output
Gamma Correction
, except that it should be used to
compensate for inaccuracies in the source rather than the display.
It is best to use test patterns from your source devices (for example a Calibration DVD such as Digital Video
Essentials or AVIA: Guide to Home Theater) during these adjustments.
This setting is stored per input and can be saved as part of an
Image Profile
.
• You need to adjust the settings separately for each input and output port.
• It may be necessary to repeat sections 4.6.3.1, 4.6.3.2 and 4.6.3.3 to get accurate results as many of these
settings have an impact on each other.
4.6.4 DIGITAL PROJECTOR WITH ANAMORPHIC LENS
If you are using an anamorphic lens to compress your 16:9 projector to show a 2.35:1 image, remember to
configure the
Screen Shape
to be
2.35:1
instead of the default
16:9
. Follow the steps below:
• Press
Menu
remote control key to enter OSD (On Screen Display) menu
• Select
Output
then
Screen Shape
• Configure
Screen Shape
as
2.35:1
instead of the default
16:9
If your projector’s native output is 4:3 (e.g. some 1400x1050 LCOS projectors) and you are using an
anamorphic lens to compress it to show a 16:9 image, you need to configure the
Screen Shape
to be
16:9
instead of the default
4:3
. Follow the steps below:
• Press the
Menu
remote control key to enter the OSD (On Screen Display) menu
• Select
Output
then
Screen Shape
• Configure
Screen Shape
as
16:9
instead of the default
4:3
