Reducing Glare at Night

[Jmbmichael]

I am streaming baseball games using a couple of EmpireTech (Dahua) cameras, one of which is zoomed in on the scoreboard and the picture is great during the day but at night the numbers on the scoreboard have so much glare they are pretty much unreadable. I haven't had a chance to play around with the settings at night yet but hoping you guys could point me in the right direction to reduce some of the glare. I'll attach a couple of examples and some of the available settings. Thanks for any assitance.

 

[wittaj]

Take it off of auto/default settings. Those are set up to favor a bright static image.

Try manual shutter at like 1/120 shutter and gain at 50. And then simply adjust the shutter speed until you get what you want. The faster the shutter speed, the more light that is needed, so it will be a balance. You might have enough light to go even faster.

Move contrast 8 or so higher than brightness.

 

[Mike A.]

Assuming night settings are the same, try taking brightness down some and contrast up a little. Also can try Exposure Compensation a little lower. That may or may not get you there with the mode left at Auto.

If not, then try setting the mode to manual with a faster exposure and adjust brightness/contrast from there.

You can also try some of the backlight options to see if that may help.

 

[Jmbmichael]

Do you think that with the field lights that the camera is actually switching to night settings?

 

[wittaj]

It will only switch to night settings if you set that up in the schedule. Otherwise, it is probably simply switching from color to B/W based on available light. That is usually one of the biggest gripes about these types of cameras from Dahua is that the day/night doesn't work like we think and you usually have to force it to a day or night profile by setting up a day schedule and night schedule or use an API script on a computer.

I bet if you open up the camera GUI to the camera settings page at night, it will either show Day or General profile as what is being used.

What does it show under the Profile Management tab.

 

[SpacemanSpiff]

Is the sunrise/sunset utility an option for this scenario?

 

[Mike A.]

Doesn't look like it's switching. Probably set to auto and just staying in color with all of that light. Turn off the lights and it likely will go to B&W with IR. Probably should set up different profiles so you can tune exposure and all better for day/night

 

[wittaj]

Is the sunrise/sunset utility an option for this scenario?

If he has a computer running the utility would be perfect.

 

[Jmbmichael]

The utility would be perfect, I had no idea about this. So on the cameras Profile Management I need to set it as Full Time (Day) and the utility will be able to make the day/night changes?
I've made some shutter and gain changes to the Night profile and will try to test this out in the next couple of day. Thanks for all of the input.

 

[SpacemanSpiff]

Dahua day/night switch utility - DahuaSunriseSunset

I wanted to use stronger noise reduction at night and weaker during the day, but Dahua seems to have made a mess of the profile management. On most cameras, there doesn't seem to be a way to have the camera switch automatically between Day and Night profiles when the camera changes between...

ipcamtalk.com