Step 1 : Open Settings.
Step 2 : Click on Devices.
Step 3 : Click on Cameras.

Step 4 : Select the Webcam or network camera.

Step 5 : Click on the Connected Camera.
Step 6 : Use Brightness slider to lower or increase the video brightness.

Step 7 : Use the Video Rotation option to flip the video right 90,left 90,or 180 degrees.
Step 8 : Use the Contrast slider to lower or increase the video Contrast.
Step 9 : Enable/Disable the Video HDR feature (if Available)
Step 10 : Enable/Disable the Eye Contact feature (if Available)