Hi @veye_xumm, I didn't say that this is issue, this parameter needs to be changed only in case video recording of the night sky (meteor detection)
From issues what I noticed:
can't save fps - always 60 after power on
Sometimes saved parameters resets to default (noticed when set metime to 33333 but forgot set fps 30 before) and manual expmode switched back to auto
@veye_xumm found what was wrong,
high level of noise produced gamma_index = 1 (default value), other looks good.
@veye_xumm yes, you are right, I checked image in 25 and 26 dB - and it is switching.
Probably I used high digital gain (because brightness low than from IMX462 in same gain value) and it produces high level of noise.
About denoise, in IMX462 I'm using 0x02, but not sure what is MIDDLE value, because in IMX662 denoise_strength_3D with 128 produces different picture and I decreased to 40 to have something similar
0x02 NR 2D Mode = OFF; NR 3D Mode = MIDDLE
Will test couple nights. Thank you.
@sheko
As I see your standard camera parameters are: 1080x1280 120fps
And as it configured in python script for first step try:
cap = cv2.VideoCapture('v4l2src device=/dev/video0')
if still failing try with passing parameters to gstreamer:
cap = cv2.VideoCapture('v4l2src device=/dev/video0 ! video/x-raw,format=UYVY, width=1080, height=1280,framerate=120/1 ! videoconvert ! video/x-raw,format=GRAY8 ! appsink sync=1')
or from command line to check if gstreamer works without python
gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,format=UYVY, width=1080, height=1280,framerate=120/1 ! videoconvert ! video/x-raw,format=GRAY8 ! appsink sync=1
if still failing try RAW8 format
gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,format=RAW8, width=1080, height=1280,framerate=120/1 ! appsink sync=1
if still failing, can't help, I don't have this sensor.
@veye_xumm happy holidays!
Yes, I tried manual and auto gain/expmode and it works as expected.
For meteors detection I don't need use denoise3d (or use small value ), as it blurs fast moving objects, but without it the image very noisy, which is probably related to HCG and LCG modes of sensor (as it was for my IMX462M camera and you provided custom firmware with enabled HCG), and it is working perfectly on VEYE IMX462 cameras.
For now it has quality of usual IP camera with same sensor (with denoise3d for night sky), will wait, probably it will be improved in future.
Thank you!
@sheko please update pipeline with your camera parameters (width, height, framerate). I just copied mine.
@sheko
This is pipeline which need place to openCV instead:
cap = cv2.VideoCapture('/dev/video0')
to run it from command line you need use gstreamer, try :
gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,format=UYVY, width=1920, height=1080,framerate=30/1 ! videoconvert ! video/x-raw,format=GRAY8 ! appsink sync=1
Hi @veye_xumm, sorry for confusion, in previous time you guided me to install custom libcamera for veye_mvcam driver and seems like this step is outdated (but I'm still using libcamera).
@Sheko try another pipeline in openCV:
v4l2src device=/dev/video0 ! video/x-raw,format=UYVY, width=1920, height=1080,framerate=30/1 ! videoconvert ! video/x-raw,format=GRAY8 ! appsink sync=1
Hi @sheko, I had same problem with RPi 5, did you build and install libcamera from veye github repository? For some reason it has config json file only for RPi 4.
First step try run it with uncalibrated json :
rpicam-still --tuning-file /usr/local/share/libcamera/ipa/rpi/pisp/data/uncalibrated.json -t 0
Path may be different, if failed to load json file - try to find valid path.
if video opened - we need just put to same folder mvcam_mono.json (or add to libcamera source code, update meson.build and rebuild + reinstall )
and check if rpicam-hello or rpicam-still works without tuning file
I attached my current config (rename it to json) but it adopted for night sky and you need fix in json file section : exposure_modes . normal, copy it for example from se327m12.json
mvcam_mono.txt
Hi @veye_xumm, I'm already on the latest version of firmware:
$ ./gx_mipi_i2c.sh -r version -b 4
Read version is C 01.14 and L 01.11
Anyway it is not critical issue for me.
I'm trying this new GX-MIPI-IMX662 as improved version of VEYE-MIPI-IMX462 for meteors detection and can't configure with same way.
If turn off denoise_strength_3D the video image is very noisy and as in gx_mipi_i2c no feature to read sensor registers, can I ask to you confirm that:
In low light environment ISP enables HCG mode (register FDG_SEL0 0x3030 sets to 0x01) ?
Maybe you have other recommendations like for IMX462 in this post :
VEYE-MIPI-IMX462 - manual gain not consistent
Hi @sheko, I have another mono camera but probably it should be same.
I suppose camera visible by libcamera (should work something like rpicam-hello ).
And according to the error log your openCV uses Gstreamer as backend. Libcamera has plugin for Gstreamer : libcamerasrc and my pipeline looks like:
libcamerasrc camera-name="/base/axi/pcie@120000/rp1/i2c@88000/veyemvcam@3b" ! video/x-raw, width=1920, height=1080, framerate=30/1, format=UYVY ! videoconvert ! video/x-raw,format=GRAY8 ! appsink sync=1
You need just set your camera path (according to mipi port it could be i2c@88000 or i2c@80000 ) , set your camera settings (resolution, format, fps) and remove convert to GREY8 if need color image.
Hi @veye_xumm , thank you for answer, let me clarify my steps.
$ ./gx_mipi_i2c.sh -r fps -b 4
Read FrameRate_Ex is 60.0000 fps
$ ./gx_mipi_i2c.sh -w fps 30 -b 4
Write FrameRate_Ex is 30.0000 fps
$ ./gx_mipi_i2c.sh -r fps -b 4
Read FrameRate_Ex is 30.0000 fps
$./gx_mipi_i2c.sh -w paramsave -b 4
all param saved to flash
7 . Reboot raspberry pi
8. check current fps (it is 60 again):
$ ./gx_mipi_i2c.sh -r fps -b 4
Read FrameRate_Ex is 60.0000 fps
Hi,
On my new camera GX-MIPI-IMX662 I'm trying to set fps parameter (via gx_mipi_i2c.sh from 60 to 30) and save to flash by paramsave and it is working only for current session and after restart it restored back to 60 again.
How to fix it?
@alex_ai said in IMX462M pixelformat on RPi5:
I need wait for clear sky to test and provide feedback
Finally tested, for gain value 20 it is looks pretty same with color sensor with ISP, but background no so black as for color sensor.
For me this issue resolved, attached examples to compare (10 seconds stacks)
IMX462 mono
IMX462 color with ISP
@veye_xumm
Yes, version is 1.09 after upgrade
@veye_xumm
Hi, thank you for firmware update.
Just to double check, is HCG mode always turn on now?
Also for register 0x3009 I got value 0xffff instead ox11 but seems like HCG enabled anyway.
I need wait for clear sky to test and provide feedback
PS:
After upgrade at the end it writes: "Failed to write register" message but upgrade done , can I just ignore it?
@veye_xumm
By the way, I see that I can read registers of camera by snsreg command but can't find how to write.
Is it possible set register 0x3009 value to 0x11 to enable HCG mode?
@veye_xumm
With metime and mgain parameters I increased sensitive, but it more noisy than color sensor with ISP, anyway issue with pixel format fixed for me, thank you.
@veye_xumm
Thanks, it means only manual gain/exposure mode.
I have one more question but it is a little bit out of topic.
Yesterday I tried to take pictures of the night sky to compare with 462 color sensor, even with high gain value stars are not bright as for the same parameters on 462 color (but mono should be more sensitive) . It looks like there is no switching between LCG and HCG modes or I need to tune some other parameters.
Can you advise what could be tuned for this case?
@veye_xumm
One more question, I see now all parameters like gain and exposure managed by libcamera software according to json file, Can we use internal camera ISP for it as before?