LPR Camera Settings
- Thread starter harleyl7
- Start date
Most of us use the utility that @bp2008 created:
ipcamtalk.com
Or you run 24/7 in B/W.
Or you use the schedule profile and set it to switch 45 minutes before sunrise and sunset.
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...
Or you run 24/7 in B/W.
Or you use the schedule profile and set it to switch 45 minutes before sunrise and sunset.
Most of us use the utility that @bp2008 created:
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...
Or you run 24/7 in B/W.
Or you use the schedule profile and set it to switch 45 minutes before sunrise and sunset.
What number do you put for the day and night offset on that app? Is it in hours or minutes? Can you me your numbers? Thanks.
It is in hours, so I use 0.5 for sunrise and -0.5 for sunset. This allows the camera to hold the night settings 30 minutes longer at sunrise so that if it is a cloudy or rainy day, I still get captures. And then for sunset it kicks into nighttime 30 minutes before sunset to get captures if it is cloudy.
mlapaglia
Getting comfortable
- Apr 6, 2016
- 849
- 508
if you want a docker approach the openalpr webhook tool can control your camera focus and zoom
- Jun 4, 2021
- 264
- 224
Oh I'll spin up a docker on unRAID tonight and give it a shot. I wanted to integrate your tool soon anyways.
Asking what others think about a possible shot position for the cam is fine. But realize the BEST way to know is to test it. None of us here can really tell what it will be like. Just test it.
- Jun 4, 2021
- 264
- 224
Went out and tested it during day and night. Ended up with an angle between my two references points. Said I was gonna test it earlier
Starstreak
n3wb
- Jun 4, 2021
- 264
- 224
OpenALPR agent was set to the substream so that was my issue.
Grabbing 100% percent of plates currently.
mlapaglia
Getting comfortable
- Apr 6, 2016
- 849
- 508
Just one super tiny nitpick, level out your camera so it make the cars move horizontally instead of diagonally up the screen lol!
Do you guys use the substream at all for Blue Iris, for LPR? If so, what resolution / bitrate to use? And is 15fps still ok for LPR?
It is field of view dependent. My one cam can do the substream just fine, and my other cam BI struggles with switching in time to get a mainstream shot for Plate Recognizer so I just run that one mainstream.
I dropped down to 8FPS and it still captures the plate just fine.
I dropped down to 8FPS and it still captures the plate just fine.
I have 2 IPC-HFW5231E-Z12E that I use for LPR and have them configured as follows:
BlueIris: Main Stream - H265, 1920x1080, 15fps, VBR(6-best), 4096 kbps max bit rate
openalpr: substream 2 - H264H, 1920x1080, 30fps, CBR, 8192 kbps max bit rate
substream 1 is not enabled.
I do not use substreams with these cameras in BlueIris.
BlueIris sends the mainstream to DeepStack for object identification.
I do use substreams on my overview cameras in BlueIris.