Poor image quality after flashing

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

Hi, I am having issues with the camera quality of a Raspberry Pi high quality camera that is connected to my Jetson Orin Nano

I had to refresh my Nvidia Jetson Orin Nano after having boot issues. I think the previous version of Jetpack was 6.0, but after having issues with flashing 6.0 on the board, I chose 6.1 and that worked. Setting up the camera configuration with Jetson-io proved to be difficult, but following a guide a found online:

" create a new boot configuration in /boot/extlinux/extlinux.conf copying from the default primary

add in new configuration the following line

FDT /boot/dtb/kernel_tegra234-p3768-0000+p3767-0005-nv.dtb

where the file /boot/dtb/kernel_tegra234-p3768-0000+p3767-0005-nv.dtb is a copy of /boot/tegra234-p3768-0000+p3767-0005-nv.dtb

reboot the board and select the new boot option

when the system start you can succesfully run jetson-io.py

Basically with this fix you use the kit without the new super mode»

After setting up the camera, the images are quite blurry, while I am still using the same python code to capture images, as well as testing with nvgstcapture.

This is the code I have been using, and that gave me good pictures before the flash:

def gstreamer_pipeline(
sensor_id=0,
capture_width=CAMERA_WIDTH,
capture_height=CAMERA_HEIGHT,
display_width=CAMERA_WIDTH,
display_height=CAMERA_HEIGHT,
framerate=21,
flip_method=0,
):
return (
"nvarguscamerasrc sensor-id=%d ! "
"video/x-raw(memory:NVMM), width=(int)%d, height=(int)%d, framerate=(fraction)%d/1 ! "
"nvvidconv flip-method=%d ! "
"video/x-raw, width=(int)%d, height=(int)%d, format=(string)BGRx ! "
"videoconvert ! "
“video/x-raw, format=(string)BGR ! appsink”
% (
sensor_id,
capture_width,
capture_height,
framerate,
flip_method,
display_width,
display_height,
)
)

    camera = cv2.VideoCapture(gstreamer_pipeline(flip_method=2), cv2.CAP_GSTREAMER)

Here are the images before and after:

14.01.2025 10_07_22
14.01.2025 10_07_221920×1080 177 KB

20.01.2025 10_44_10
20.01.2025 10_44_101920×1080 489 KB

Any tips?

3

hello oscarer,

did you applied camera override files?
please check whether you’ve /var/nvidia/nvcam/settings/camera_overrides.isp

4

Hi
No, they are not there. How do I apply them?

Additionally, which camera driver is the correct one? IMX477-?

5

hello oscarer,

the question is more like… had you applied camera override files before?
if no, did you meant a native JP-6.0/IMX219 has better image quality?

6

Hei
The only thing i did before was to use the jetson-io tool to set the expansion header to imx477, if that is what you mean

7

hello oscarer,

let me double check the camera setups, is it Raspberry Pi, IMX477 on Jetson Orin Nano developer kit?
the only difference is… JP-6.0 v.s. JP-6.1?

8

Yes that is correct, and I also tried with JP-6.2, and have the same result. But I have no camera override file in /var/nvidia/nvcam/settings/camera_overrides.isp, is that also how it should be after it is configured with jetson-io? On boot it states that it is using the kernel with the IMX477 config

13

hello oscarer,

we’re able to reproduce the same issue on developer kit, i.e. JP-6.2 with blurry capture results
let me arrange resources for investigation, will update after we have conclusions.