OAK-D Pro W OV9782 pinky RGB

marlu

Hi there,
I noticed a pinky tone on our OAK-D Pro W camera. I suppose the issue might be related to this blogpost, although the color tone is present both, outdoors and indoors. Following the camera tuning tutorial, I downloaded the "Color tuning for low-light environments" blob. Could you please provide me with an example on how to actually use this blob? Thanks.

Martin

jakaskerl

Hi marlu
Just add the

pipeline.setCameraTuningBlobPath('/path/to/tuning.bin')

to the script and leave everything else unchanged.

On the other hand, please check your camera configuration with cam_test.py. It is possible you actually have mono camera installed (hopefully not). Could you provide terminal output of the script?

Thanks,
Jaka

marlu

Thanks jakaskerl , I basically run a rgb_preview.py example with the addition of pipeline.setCameraTuningBlobPath('/path/to/tuning.bin . The tuning blob does not make a difference. Did you mean to use some other script?

The output of cam_test.py is correct (two mono, one color mono), although I don't understand the error and warning messages. It states that camera is not detected, but it does connect to the socket below. I use depthai version 2.21.2.0.

[18443010D118B00E00] [1.2] [0.727] [ColorCamera(8)] [error] Camera not detected on socket: 3
[18443010D118B00E00] [1.2] [0.728] [ColorCamera(2)] [warning] Unsupported resolution set for detected camera OV9782, needs 800_P or 720_P. Defaulting to 800_P
Connected cameras:
 -socket RGB   : OV9782 1280 x  800 focus:fixed - COLOR MONO
 -socket LEFT  : OV9282 1280 x  800 focus:fixed - MONO
 -socket RIGHT : OV9282 1280 x  800 focus:fixed - MONO

marlu

@jakaskerl please see the image below. The RGB output of OV9782 is visibly pinky. I managed to improve the color by manually setting the white balance for a certain scene, but this approach would not be suitable for a moving camera.

jakaskerl

Hi marlu
The pink looks too uniform to be the problem described in the blogpost and is probably why the blob doesn't work. This looks like a hardware issue of missing IR filter on the camera.
Can you try the camera out in the sun or (if you have one) try flashing an IR light into the camera.

Thanks,
Jaka

marlu

Hi @jakaskerl
see the image from outdoors. this definitely looks like the camera cannot handle IR light. Is the IR filter implemented right in the lens? Can we somehow substitute it by sticking an IR filter film on the lens? Thank you.

jakaskerl

Hi marlu
The filter should be implemented into the camera. It probably should work if you stick one on by yourself, or, just send an email to support@luxonis.com so we can replace your device.

Thanks and sorry for the inconvenience,
Jaka