Peak Detector; Level Detector - Christie CineIPM-2K User Manual

OPERATION
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Peak Detector

The Peak Detector is fast method of defining individual input levels, and can improve
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 gray. When
used with a 16-step grayscale 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 blacklevels 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.

Level Detector

The Level Detector checkbox enables a 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. It aids in Odd Pixel Adjustment. To use:
1. Enable Level Detector and display a continuous grayscale.
2. Set Level Value to near black (such as 200).
3. Adjust Offsets to minimize area of black stripe.
4. Set Level Value to near white (such as 800).
5. Adjust Gains to minimize area of white stripe.
Level Value
The Level Value defines the value to be used by the Level Detector in recognizing
blacks and whites. See Level Detector, above.
Aspect Ratio Overlay
When selected, this option will display outlines overtop of the image in various
aspect ratios. This is useful when trying to position images.
Cine-IPM 2K User's Manual
020-100164-01 Rev. 1 (01/08)