Christie CineIPM-2K, Руководство пользователя

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OPERATION
Cine-IPM 2K User’s Manual 3-43
020-100164-01 Rev. 1 (01/08)
Color Enable
Select which color or colors you want to see. This is useful while working with color
temperature, input levels or other special setup parameters. Colors can also be
enabled/disabled by entering the corresponding function code (see “Function Key”).
Odd Pixel Adjustment
NOTES: 1)
Factory-set and rarely required by user.
2)
Source must be >90 MHz.
When using certain non-cinema RGB sources, you may need to adjust the normal
gain or offset of odd pixels in relation to even pixels. This will smooth out very
narrow (1-pixel wide) “checks” or vertical stripes that indicate adjacent “on” and
“off” pixels. Although offset and gain slidebars can be adjusted individually and
manually, using the Level Detector simplifies this process (see Figure 3.23):
1)
Use an external analog native-sized continuous grayscale test pattern with at least
256-levels.
2)
Turn “Level Detector” on.
3)
Set “Level Value” to ~200 . The image should now be black-and-white (or black-
and-one color, if you use “Color Enable” function).
4)
Adjust offset . Half of the pixels will move, the other half will not.
5)
Adjust until the two transition regions overlap. The stripe of noise will be
minimized, defined by the value in the slidebar.
6)
Set “Level Value” to ~800 . The image should now be black-and-white.
7)
Repeat Steps 4 and 5, but adjusting gain .
8)
Repeat Steps 3-7 for all remaining colors. Your RGB source should now be OK.
Two sets of values are automatically saved with this process—one value for
INPUT 1
,
and one value for
INPUT 2
(analog). The Cine-IPM 2K will automatically choose the
correct set depending on the source connection. This enables a single source to be
processed correctly whether it routes through one input or another.
Figure 3.23. Using “Odd Pixel Adjustment”
NOTES: 1)
Adjust offset before gain, since offset affects gain.
2)
A value of 128
represents no change in normal odd pixel offset or gain.
3)
Odd Pixel Adjustment
eliminates “1 pixel on, 1 pixel off” patterns only, not any type of larger patterns.
Reserved
No function.