Camera board • Re: raspberry pi high quality camera connected to the pi zero 2w doesn't work without libcamera/picamera

I am using the following code
from picamera2 import Picamera2
import cv2

picam2 = Picamera2()
picam2.configure(picam2.create_preview_configuration(main={"size": (480, 360)}))
picam2.start()

while True:
frame = picam2.capture_array()
cv2.imshow("Tracking", frame)

if cv2.waitKey(1) & 0xFF == ord('q'):
break

picam2.stop()
cv2.destroyAllWindows()

And in response I receive

[0:07:01.780108981] [686] INFO Camera camera_manager.cpp:325 libcamera v0.3.2+99-1230f78d
[0:07:01.855892776] [692] WARN RPiSdn sdn.cpp:40 Using legacy SDN tuning - please consider moving SDN inside rpi.denoise
[0:07:01.861945011] [692] INFO RPI vc4.cpp:447 Registered camera /base/soc/i2c0mux/i2c@1/ov5647@36 to Unicam device /dev/media3 and ISP device /dev/media0
[0:07:01.862170063] [692] INFO RPI pipeline_base.cpp:1120 Using configuration file '/usr/share/libcamera/pipeline/rpi/vc4/rpi_apps.yaml'
[0:07:01.879943382] [686] INFO Camera camera.cpp:1197 configuring streams: (0) 480x360-XBGR8888 (1) 640x480-SGBRG10_CSI2P
[0:07:01.880782965] [692] INFO RPI vc4.cpp:622 Sensor: /base/soc/i2c0mux/i2c@1/ov5647@36 - Selected sensor format: 640x480-SGBRG10_1X10 - Selected unicam format: 640x480-pGAA
qt.qpa.xcb: could not connect to display
qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/home/rpi/myenv/lib/python3.11/site-packages/cv2/qt/plugins" even though it was found.
This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: xcb.

Aborted

Statistics: Posted by Olelsandr — Mon Jan 27, 2025 10:14 pm

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