Turning off ISP sharpening in libargus

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Orin
1

Hello,

I am noticing that there is an image sharpening artifact which I cannot get rid of.

The issue seems to be the same as in these posts:

My setup is:

  • Jetpack 6.0
  • Leopard HAWK cameras

I have tried these in libargus:

i_edge_enhance_setting->setEdgeEnhanceMode(Argus::EDGE_ENHANCE_MODE_OFF);
i_edge_enhance_setting->setEdgeEnhanceStrength(0.0f);
i_stream_settings->setPostProcessingEnable(false);

And setting this in camera_overrides.isp:

sharpness.v5.enable = FALSE;

I know my camera_overrides.isp is being used - I tried changing the gamma value and saw my image change.

I also got a raw image using v4lctl and that raw image does not have the sharpening artifacts - so I think it is something the ISP is doing that does not have a setting to turn it off.

Here’s is the effect:

image
image1850×1261 39.4 KB

4

Please upgrade to JP6.1(r36.4) for this.

Thanks

5

I tried on jetpack 6.1 and I get the same results.

6

Get the image by nvargus_nvraw to check.

Thanks

7

Here’s the command I used:

nvargus_nvraw --format jpg --file a.jpg --skipframes 100 --c 0

I had this in /var/nvidia/nvcam/settings/camera_overrides.isp:

sharpness.v5.enable = FALSE;

I saw this in nvargus-daemon logs:

Found override file [/var/nvidia/nvcam/settings/camera_overrides.isp].

The image still had artifacts:

image
image2406×1684 32 KB

8

Could you get the raw image from v4l2-ctl to confirm.

Thanks

9

Yes, as my original post says I already tried using v4l ctl directly to get the raw image and that image does NOT have the artifacts.

10

Could you get the nvraw image by nvargus_nvraw.

Thanks

12

Here’s is the nvraw image. I’m not sure how to view it on my end, I didn’t find any documentation on how to view it. Is there a way? I attached it below as a zip file.

nvraw_image.zip (3.0 MB)

Here’s the same image captured to .jpg format, I highlighted the problem in it.

image
image1920×1200 132 KB

13

Add below to isp file to try.

demosaic.v6.enableDmx = true;
14

Yes, that fixes it! Thank you.

I can also confirm that this fix only works on jetpack 6.1 and not 6.0.

15

Yes, the DMX only enable after JP6.1.

16

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