A- Automatic Gain Control (AGC) is a type of technique that compensates the video signal when it falls below or exceeds a specific value.

B- Backlight compensation (BLC) is a feature on security cameras that compensates for strong background lighting, which would normally drown out features in the foreground, and makes details in the foreground visible. 

C- Complementary metal-oxide semiconductor (CMOS) is a type of image sensor chip used in security cameras that is known to produce less signal loss and degradation in video quality from intense light sources than other image sensors.

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