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    alex_ai

    @alex_ai

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    Latest posts made by alex_ai

    • RE: IMX462M pixelformat on RPi5

      @alex_ai said in IMX462M pixelformat on RPi5:

      I need wait for clear sky to test and provide feedback

      Finally tested, for gain value 20 it is looks pretty same with color sensor with ISP, but background no so black as for color sensor.
      For me this issue resolved, attached examples to compare (10 seconds stacks)

      IMX462 mono
      IMX462M_small.jpg

      IMX462 color with ISP
      IMX462C_small.jpg

      posted in Machine Vision camera
      A
      alex_ai
    • RE: IMX462M pixelformat on RPi5

      @veye_xumm
      Yes, version is 1.09 after upgrade
      Screenshot 2024-08-07 at 08.44.51.png

      posted in Machine Vision camera
      A
      alex_ai
    • RE: IMX462M pixelformat on RPi5

      @veye_xumm
      Hi, thank you for firmware update.
      Just to double check, is HCG mode always turn on now?

      Also for register 0x3009 I got value 0xffff instead ox11 but seems like HCG enabled anyway.
      Screenshot 2024-08-06 at 19.45.01.png

      I need wait for clear sky to test and provide feedback

      PS:
      After upgrade at the end it writes: "Failed to write register" message but upgrade done , can I just ignore it?
      Screenshot 2024-08-06 at 19.22.50.png

      posted in Machine Vision camera
      A
      alex_ai
    • RE: IMX462M pixelformat on RPi5

      @veye_xumm
      By the way, I see that I can read registers of camera by snsreg command but can't find how to write.
      Is it possible set register 0x3009 value to 0x11 to enable HCG mode?

      posted in Machine Vision camera
      A
      alex_ai
    • RE: IMX462M pixelformat on RPi5

      @veye_xumm
      With metime and mgain parameters I increased sensitive, but it more noisy than color sensor with ISP, anyway issue with pixel format fixed for me, thank you.

      posted in Machine Vision camera
      A
      alex_ai
    • RE: IMX462M pixelformat on RPi5

      @veye_xumm
      Thanks,  it means only manual gain/exposure mode.

      I have one more question but it is a little bit out of topic.
       
      Yesterday I tried to take pictures of the night sky to compare with 462 color sensor, even with high gain value stars are not bright as for the same parameters on 462 color (but mono should be more sensitive) . It looks like there is no switching between  LCG and HCG modes or I need to tune some other parameters.
      Can you advise what could be tuned for this case?

      posted in Machine Vision camera
      A
      alex_ai
    • RE: IMX462M pixelformat on RPi5

      @veye_xumm
      One more question, I see now all parameters like gain and exposure managed by libcamera software according to json file, Can we use internal camera ISP for it as before?

      posted in Machine Vision camera
      A
      alex_ai
    • RE: IMX462M pixelformat on RPi5

      @veye_xumm
      Hi, I noticed that version of libcamera different on my screenshot (it 0.2.0 but I installed 0.3.0)
      I uninstalled rpicam-apps and rebuild it from source code again and it uses my version of libcamera now.
      if execute rpicam-still -v I have next error:
      Screenshot 2024-07-26 at 09.49.33.png
      In commit I see added json file only to vc4 folder (for RPi4) , can we add it to pisp folder (for RPi5) it should have name : "mvcam_mono.json"? it has different format and can't use same file from vc4.

      Also I managed start video by this command:
      rpicam-still --tuning-file /source/libcamera/src/ipa/rpi/pisp/data/uncalibrated.json -t 0
      and it works!
      Screenshot 2024-07-26 at 10.00.57.png
      But better run it without additional parameters
      Thank you.

      posted in Machine Vision camera
      A
      alex_ai
    • RE: IMX462M pixelformat on RPi5

      @veye_xumm
      Hi, it helped but I had to use 1.0.6 tag of libpisp, with the latest version I had compile errors.
      Now for command : rpicam-hello -v
      I have this error:
      Screenshot 2024-07-25 at 22.39.46.png

      I used set media script before:
      Screenshot 2024-07-25 at 22.42.04.png

      Maybe forgot something else.

      posted in Machine Vision camera
      A
      alex_ai
    • RE: IMX462M pixelformat on RPi5

      @veye_xumm
      Hi, thank you for update.
      I'm stuck with compiling libcamera now, with same error as here : https://github.com/raspberrypi/libcamera/issues/151

      Did not find solution yet, probably need play with source code, will let you know if any updates.

      posted in Machine Vision camera
      A
      alex_ai