D-Link DNR-4020-16P User Manual page 103

Section 3 - Configuration
Enhance Image
Enable this to optimize the display quality with wide dynamic
WDR
range (WDR).
Adjust for overexposure with highlight compensation (HLC).
HLC
Adjust the overall lighting of the image with backlight
BLC
compensation (BLC).
Defog the image.
Defog
Enable this to compensate for minor shaking of the camera,
Anti-shake
making the video smoother.
The configuration options on this page are only available for cameras
being accessed via private protocol.
D-Link DNR-4020-16P User Manual 98