Also known as backlight compensation, it can effectively compensate for the darkness of the main body of the picture when the camera is shooting in a backlight environment, and increase the brightness of the entire picture to achieve a clear view of dark images that cannot be seen before. Applied to backlight scenes, in order to highlight the foreground features, set the backlight compensation area to increase the foreground brightness. Note: Because the brightness of the entire screen is increased at the same time, after the increase, the foreground brightness may be appropriate, but the background brightness may be overexposed.