Nvcamerasrc Exposure properties

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX2
1

Hi all,

I have a question about the nvcamerasrc exposure properties. When I use auto exposure and the aeRegion property, my understanding is that the ISP uses only the ROI set to calculate the global exposure value. Is this correct?

If so, is there a way to read that exposure value somehow?

Thanks in advance.

  • Carlos R.
2

hello CarlosR92,

  1. we had AE algorithms to determine the scene luminance, and setting the exposure values for next coming frame.
  2. please download [NVIDIA Tegra Linux Driver Package] to get [Release 28.2 Development Guide], and please also check the [Sensor Driver Programming Guide] for exposure time formula.
    -or-
    you could add some debug prints in the kernel driver to dump the exposure values that coming from user-space.