Error:

❯ python getcolor.py
qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in "/home/stroky/testline/alemeno/lib/python3.12/site-packages/cv2/qt/plugins"
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.

fish: Job 1, 'python getcolor.py' terminated by signal SIGABRT (Abort)

Solution:

❯ export QT_QPA_PLATFORM="xcb"
❯ python getcolor.py
--- success execution ---
Pixel value at (100, 50): [255 255 255]
HSV value at (100, 50): [  0   0 255]

Make sure qt5-wayland & qt6-wayland packages are installed

Reference: Stackoverflow