IRCut filter - actual state

[jarosek89]

It is possible to get information or notification about status change of the IRCut filter? I would like to change some image parameters if the IRCut filter is on. So I need the information about the status change.

Thank you.
Jaromir

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[vivekatoffice]

Hi @jarosek89 ,
You can subscribe metadata from the camera using methods like MQTT or WebSocket.

WebSocket:

Reference
I used the following code from here: Python ws-data-stream connection

Filter for IR cut: tns1:LightControl/tnsaxis:LightStatusChanged/Status

You can use Axis Metadata Monitor for getting the correct filter : Axis Metadata Monitor

Change the payload, IP address, serial number and password in python code from 263

## Prepare the JSON payload
            payload = {
                    "apiVersion": "1.0",
                    "method": "events:configure",
                    "params": {
                            "eventFilterList":[
                            {
                            "topicFilter":"tns1:LightControl/tnsaxis:LightStatusChanged/Status"
                            }
                             ]
                            }
                        }

Output:

Using MQTT Event bridge

Reference

[jarosek89]

Hello,
thank you very much. It works perfectly.

I have one additional question. Is it possible to check illumination value on camera sensor?

Best regards,
Jaromir

[vivekatoffice]

Hi @jarosek89 ,
Unfortunately, Axis doesn't have any way to measure the LUX level in a scene with current cameras.

Some cameras have a light sensor, but they are only used for the night-to-day mode switching and are tuned for that specific function. Also, that sensor does not measure the illuminance in the scene.

[jarosek89]

Hello,
Ok, thank you very much for your reply, it was very helpful for me.

Best regards
Jaromir