Quad Bayer format images

  1. Where did you get the camera module(s)?
    Arducam website
  2. Model number of the product(s)?
    64MP Hawkeye
  3. What hardware/platform were you working on?
    Raspberry Pi
  4. Instructions you have followed. (link/manual/etc.)
    Arducam install instructions and libcam instructions
  5. Problems you were having?

Could you please confirm the format of the Sensor’s bayer filter?

I was under the impression that this camera has a quad bayer format, where each block of 16 pixels has 8 green, 4 blue and 4 red pixels arranged in blocks of 4. Is that true, or is the sensor a more traditional bayer format (i.e repeating blocks of RGGB)?

I am interested in getting the full 10bit Quad-bayer image from the camera if possible. I have used the command below which outputs a DNG of the bayer pattern, but this does not seem to be in the quad bayer format - it seems to be in RGGB format. If the sensor is quad-bayer, is there any way to retrieve the unprocessed quad bayer pixels from the camera?

libcamera-still --width 9152 --height 6944 -r -o test.jpg

@bigollie93

I was under the impression that this camera has a quad-bayer format, where each block of 16 pixels has 8 green, 4 blue, and 4 red pixels arranged in blocks of 4. Is that true, or is the sensor a more traditional bayer format (i.e repeating blocks of RGGB)?

Indeed.

DNG is RAW image + shooting parameters, like exposure gain, and white balance related.

If you want to get the rawest, you can try libcamera-raw.
Or turn off media-controller and use v4l2 to fetch,

Hi Edward,

Thanks for the information. Apologies but your message is slightly ambiguous.

Just to be sure, can you confirm that the Bayer format here is not Quad Bayer, and is actually RGGB?

Thanks

@bigollie93

Don’t worry.

I made sure it was RGGB.

Quad Bayer is RYYB,we do not yet have products that use to.

Thank you for the information Edward!

Just to say, you might want to edit the information on this page, because it states that the sensor has quad bayer format:

@bigollie93

Do you mean this?


I did not find more introductions