Posts made by jakobvol

Hm weird. I thought I tried that already. I will check it again next weekend, when I have time.

But Thanks a lot for your reply :))

Hello,
I tried very hard to get the YEYE-MIPI-IMX462 working with openCV on a raspberry pi4. But not even the example VEYE-OpenCV sketches are working my configuration.

I want to explain my problem and system as detailed as possible:

My installation steps:

wget https://github.com/veyeimaging/raspberrypi_v4l2/releases/latest/download/raspberrypi_v4l2.tgz
tar -xzvf raspberrypi_v4l2.tgz
cd raspberrypi_v4l2/release/
chmod +x *
sudo ./install_driver.sh veyecam2m

sudo apt-get install gstreamer1.0-tools
sudo apt-get install libx264-dev libjpeg-dev
sudo apt-get install libgstreamer1.0-dev libgstreamer-plugins-base1.0-dev libgstreamer-plugins-bad1.0-dev gstreamer1.0-plugins-ugly gstreamer1.0-tools gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-plugins-good gstreamer1.0-plugins-bad

sudo apt install python3-opencv
pip install opencv-python

I already tried:

pip uninstall opencv-python
sudo apt install python3-opencv

like it was written in that post:
https://forum.veye.cc/topic/274/opencv-无法找到摄像头/9?_=1685312066853
But then the line

import cv2

causes an error, because it is not found

At least the Camera works:
Veye Cam IMX462 Camera works with VLC
also over Gstreamer with following Command:

gst-launch-1.0 v4l2src io-mode=dmabuf device=/dev/video0 ! "video/x-raw,format=(string)UYVY, width=(int)1920, height=(int)1080,framerate=(fraction)30/1" ! v4l2convert capture-io-mode=dmabuf output-io-mode=dmabuf ! autovideosink sync=false -v

I tried already 32bit and 64bit Pi OS (Bullseye)

But when I try out the openCV examples on Github
https://github.com/veyeimaging/raspberrypi_v4l2/tree/main/samples/opencv/yuv_camera
then I get following errors:

(tflite1-env) jakob@raspberrypi:~/tflite1 $ python3 v4l2_opencv_show1.py 
[ WARN:0@0.020] global cap_v4l.cpp:982 open VIDEOIO(V4L2:/dev/video0): can't open camera by index
[ WARN:0@0.022] global obsensor_stream_channel_v4l2.cpp:82 xioctl ioctl: fd=3, req=-2140645888
[ WARN:0@0.022] global obsensor_stream_channel_v4l2.cpp:138 queryUvcDeviceInfoList ioctl error return: 25
[ERROR:0@0.026] global obsensor_uvc_stream_channel.cpp:156 getStreamChannelGroup Camera index out of range
Could not open video device
Traceback (most recent call last):
  File "/home/jakob/tflite1/v4l2_opencv_show1.py", line 31, in <module>
    cv2.imshow("preview",frame)
cv2.error: OpenCV(4.7.0) /tmp/pip-install-wqewn1vq/opencv-python_91754d4f925f4fa5a2cdc530dd257fb8/opencv/modules/highgui/src/window.cpp:971: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'imshow'

(tflite1-env) jakob@raspberrypi:~/tflite1 $ python3 v4l2_opencv_show2.py 
camera open failed
Traceback (most recent call last):
  File "/home/jakob/tflite1/v4l2_opencv_show2.py", line 21, in <module>
    read_cam()
  File "/home/jakob/tflite1/v4l2_opencv_show2.py", line 17, in read_cam
    cv2.destroyAllWindows()
cv2.error: OpenCV(4.7.0) /tmp/pip-install-wqewn1vq/opencv-python_91754d4f925f4fa5a2cdc530dd257fb8/opencv/modules/highgui/src/window.cpp:1266: error: (-2:Unspecified error) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Cocoa support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function 'cvDestroyAllWindows'

(tflite1-env) jakob@raspberrypi:~/tflite1 $ python3 v4l2_opencv_show3.py 
[ERROR:0@0.021] global cap.cpp:164 open VIDEOIO(CV_IMAGES): raised OpenCV exception:

OpenCV(4.7.0) /tmp/pip-install-wqewn1vq/opencv-python_91754d4f925f4fa5a2cdc530dd257fb8/opencv/modules/videoio/src/cap_images.cpp:253: error: (-5:Bad argument) CAP_IMAGES: can't find starting number (in the name of file): v4l2src io-mode=dmabuf device=/dev/video0 ! video/x-raw, format=(string)UYVY, width=(int)1920, height=(int)1080 ! v4l2convert capture-io-mode=dmabuf ! video/x-raw, format=(string)BGR ! appsink in function 'icvExtractPattern'


camera open failed
Traceback (most recent call last):
  File "/home/jakob/tflite1/v4l2_opencv_show3.py", line 20, in <module>
    read_cam()
  File "/home/jakob/tflite1/v4l2_opencv_show3.py", line 16, in read_cam
    cv2.destroyAllWindows()
cv2.error: OpenCV(4.7.0) /tmp/pip-install-wqewn1vq/opencv-python_91754d4f925f4fa5a2cdc530dd257fb8/opencv/modules/highgui/src/window.cpp:1266: error: (-2:Unspecified error) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Cocoa support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function 'cvDestroyAllWindows'

I also tried to write a pipeline with Gstreamer to OpenCV
with pipelines like following:

cap = cv2.VideoCapture("gst-launch-1.0 v4l2src device=/dev/video0  ! video/x-raw,format=(string)UYVY, width=(int)1920, height=(int)1080,framerate=(fraction)30/1 ! videoscale ! video/x-raw,width=640,height=480 ! videoconvert ! video/x-raw, format=(string)BGR ! appsink", cv2.CAP_GSTREAMER)

But I was not able to get the Veye Cam IMX 462 in OpenCV working.
I was spending the whole Weekend trying to get this working, but I have no further Idea what to try. Please help me :))))

Thank you very very much in advance!

References:
https://wiki.veye.cc/index.php/VEYE-MIPI-290/327_for_Raspberry_Pi
https://www.waveshare.com/wiki/IMX462_2MP_Starlight_Camera
https://wiki.veye.cc/index.php/V4L2_mode_for_Raspberry_Pi#Stream_to_OpenCV
https://qengineering.eu/install-gstreamer-1.18-on-raspberry-pi-4.html

Versions:
Raspbian GNU/Linux 11 (bullseye) (32bit)
GStreamer Core Library version 1.18.4
OpenCV - cv2 version: 4.7.0
On a Raspberry Pi 4B 4gb