AVer FC2020-P&PW user manual - Manual (Page 56)

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System > Image > Preference
In Preference tab, you can tune the IP camera white balance, change the video orientation, and adjust
the brightness and contrast.
Video Orientation: To Flip or Mirror the video on screen.
D-WDR: This function is able to reduce the contrast in the view to avoid the dark zones resulting
from over and under exposure.
Adjust “Brightness”, “Contrast”, “Hue”, “Saturation”, “AGC”, “Saturation” to get clear video.