FYI - I have ezviz cameras and just finally found the advanced settings. download ezviz studio
Modify the config file with
file:/C:/Users/administrator/Downloads/EZVIZ-How%20To%20Adjust%20The%20Image%20Setting%20Of%20Your%20EZVIZ%20Device%20Using%20The%20EZVIZ%20Studio.pdf
Then you can adjust all the settings - contrast etc etc. They should have this enabled by default really
Do you know if we can push commands via curl or something alike to adjust the settings from outside the studio?
I just opened a new thread about it and later came across this. been using the studio for a while but looking for more control, i.e. from home assistant