Auto Exposure on Camarray

1.Which seller did you purchase the product(s) from?
2.The Model number of the product(s) you have purchased?
3.Which Platform are you using the product(s) on?
Jetson Nano
4.Which instruction are you following?
Online documentation
5.Has your product ever worked properly?
It works
6.What problems are you experiencing?
I am wanting to use the camera to capture data whilst transitioning from an inside to an outside environment. When I set the exposure such that I can get a clear view when inside, the exposure is far too high to be able to capture anything when I move outside (completely white screen). The same issue occurs if I increase the exposure manually when outside - when I return inside the exposure is far too low so I get a completely black image.


Is there any way to use autoexposure with these cameras? I have attempted to use the function cap.set(cv2.CAP_PROP_AUTO_EXPOSURE,1) however this just gives me VIDEOIO ERROR: V4L2: property auto_exposure is not supported.
7.What attempts at troubleshooting have you already made?
8.How would you like us to help you?

Hi @jamesheaton

Unfortunately, this camera does not have ISP support, so it does not provide automatic exposure.

@wong this is fine. I am looking to do some sort of auto exposure solution in software. Could you please let me know what the units of the exposure values are please?


When I run v4l2-ctl --list-ctls I see that exposure has a minimum value of 0, and a max value of 65535. What are the units of this? I am guessing microseconds but can you confirm this please.

Hi @jamesheaton

In fact, the unit of exposure control here is “one line”. Here are some references to help you understand: