The camera can adjust WDR level of image via selecting the strength of Wide Dynamic Range.
Login to camera web UI, and Click
-> Camera Setting
-> Image and Audio Setting
, then it will be under Image & Audio item:
Step 3: Specify a value from 0 to 10 of WDR Level to specify how much WDR adjustment to apply to the image, or select None:
Note: Wide Dynamic Range (WDR) helps improve exposure, making it easier to see objects in very bright or dark areas of the camera's image.