Christie Mirage M Series User Manual page 86

Section 3: Operation
DIAGNOSTICS & CALIBRATION - S
• TEST PATTERN
Choose the desired internal test pattern to display, or select OFF to turn off a test pattern. Alternatively, use the
T
key for cycling through test patterns.
EST
• GREY LEVEL
This will set the level of grey for displaying in the full grey field test pattern.
• FREEZE IMAGE
Enter a check mark to freeze (stop) an image on a single frame. Use this diagnostic tool to examine in detail a
still version of an incoming image that cannot be "frozen" at the source. For example, in moving images it is
sometimes difficult to observe artifacts such as external de-interlacing/resizing and signal noise. Remove the
checkmark to return to normal.
• COLOR ENABLED
Select which color(s) you want to see. Use this while working with color temperature, input levels or other
special setup parameters. Colors can be enabled/disabled by entering the corresponding function code listed on
the back of the standard remote keypad.
• INPUT PEAK DETECTOR
A fast method for defining individual input levels, and improving the accuracy of input levels set by the Auto
Input Level function. Enabling the Peak Detector activates a special operating mode for detecting only pixels
that are considered black or white—all other levels are displayed as a mid-level grey. When used with a 16-step
greyscale pattern in which the two black and white bands are known to be at opposite edges of the image, you
can watch these isolated areas while adjusting individual black levels and input drives until both bands are just
visible. Images from this source will then display correct blacks and whites without crushing or washing out.
If using Peak Detector with PIP, both images must have the same color space.
NOTE:
• INPUT LEVEL DETECTOR
The Input Level Detector check box enables specific thresholds for blacks and whites. Input levels that fall
below a specified level value (see below) are displayed as black, and all others are displayed as white. To use:
1. Enable Input Level Detector and display a continuous greyscale.
2. Set Level Detector Threshold to near black (such as 200).
3. Adjust Offsets to minimize area of black stripe.
4. Set Level Detector Threshold to near white (such as 800).
5. Adjust Gains to minimize area of white stripe.
• LEVEL DETECTOR THRESHOLD
Input Level Value defines the value to be used by the Input Level Detector in recognizing blacks and whites.
See Input Level Detector, above.
• ASPECT RATIO OVERLAY
Check this box to display an overlay pattern over the image. The overlay shows the boxes corresponding to the
size and shape of different aspect ratios.
• TEST PATTERN COLOR SWAP
This function swaps the green and red color when drawing the Grid test pattern, and may be helpful when
adjusting convergence on the projector.
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Mirage M Series User Manual
020-100575-02 Rev. 1 (11-2010)