Where did you get the camera module(s)?
https://www.uctronics.com/
Model number of the product(s)?
SKU: B0273
What hardware/platform were you working on?
Jetson Nano 2GB
Instructions you have followed. (link/manual/etc.)
arducam/docs/camera-for-jetson-nano/native-jetson-cameras-imx219-imx477/imx477-how-to-install-the-driver/
Problems you were having?
Bad Image Quality
The dmesg log from your hardware?
dmesg.txt - Google Drive
Troubleshooting attempts you’ve made?
Reinstall Driver / try multiple example/
What help do you need?
I am trying to take screenshot using IMX477 arducam with jetson nano 2GB (using FocuserExample.py)
however the result is low quality with dots
Please advise the configuration required to improve it. Thank you.
wong
April 29, 2022, 6:56am
2
Maybe you can try overriding the ISP parameters:
Apply ISP override:
wget https://raw.githubusercontent.com/RidgeRun/NVIDIA-Jetson-IMX477-RPIV3/master/li-camera-calibration-files/camera_overrides.isp
sudo cp camera_overrides.isp /var/nvidia/nvcam/settings/
sudo chmod 664 /var/nvidia/nvcam/settings/camera_overrides.isp
sudo chown root:root /var/nvidia/nvcam/settings/camera_overrides.isp
Restore ISP override:
sudo rm /var/nvidia/nvcam/settings/camera_overrides.isp
Thank you wong for your fast reply. However, even after ISP override, (with torch light appliance), the image remains grainy and pixilized. I have tried to change image size (1280 x 720 for instance) and the imx477_stereo driver, but the quality did not improve.
Your help is extremely appreciated.
wong
April 29, 2022, 9:17am
4
If it’s a noise problem, maybe you can try turning off the ISP’s digital gain:
gst-launch-1.0 nvarguscamerasrc ispdigitalgainrange='1 1' ! capsfilter caps='video/x-raw(memory:NVMM),width=(int)1920,height=(int)1080,format=(string)NV12,framerate=(fraction)30/1' ! nvvidconv flip-method=2 ! nvoverlaysink -e
Reference link:
The result improved using following setting:
def gstreamer_pipeline(
capture_width=3840,
capture_height=2160,
display_width=1280,
display_height=720,
framerate=30,
flip_method=0,
):
return (
"nvarguscamerasrc ! "
"video/x-raw(memory:NVMM), "
"exposuretimerange=“583709000 583709000”, aeLock=true, "
"width=(int)%d, height=(int)%d, "
"format=(string)NV12, 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”
% (
capture_width,
capture_height,
framerate,
flip_method,
display_width,
display_height,
)
)
However, the noise did not disappear, another hint will be appreciated. thank you.
wong
May 5, 2022, 1:14am
6
It looks like you only set the exposure range, could you try adding ispdigitalgainrange?
gst-launch-1.0 nvarguscamerasrc ispdigitalgainrange='1 1' ...
Sorry for the late reply, this is the result with following setting:
"nvarguscamerasrc ! "
"video/x-raw(memory:NVMM), "
"ispdigitalgainrange=“1 1”, exposuretimerange=“603709000 603709000”, aeLock=true, " #wbmode=0, awblock=true, gainrange=“8 8”, ispdigitalgainrange=“2000 2000”,
"width=(int)%d, height=(int)%d, "
"format=(string)NV12, 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 drop=1”
wong
May 11, 2022, 9:26am
8
I thought it was all I could offer so tried it. .