CHEETAH Hardware User’s Manual
Imperx, Inc.
Rev. 6.2
6421 Congress Ave.
7/7/2015
Boca Raton, FL 33487
+1 (561) 989-0006
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2.11.3 Initial WDR Setup Recommendations
For initial extended dynamic range set up, the setup below provides one knee point
and quickly gets a usable image and allows experimentation with various settings.
1)
Set the overall exposure period so the dark portions of the image are visible with
good contrast while other portions of the image are over-exposed with no visible
detail.
2)
Set E1 to 90% (or 95%) of the overall exposure period.
3)
Set P1 to 50% then P2 and P3 to 100%.
4)
Try varying P1 and E1 and observe the impact on the image (and histogram)
Increasing P1 will increase the amount of contrast in the dark regions of the image while
decreasing contrast in the bright regions. If the dark regions appear noisy or if the color
reproduction in the dark regions is poor, try increasing P1. Changing E1 changes the
