v83x_opencv-4.5.5.62_numpy-1.19.2

This python-opencv-headless was build for v83x_linux-armv7l-musl for the firmsware of Maix Dock II with numpy:1.19.2 installed

Install to Maix-II Dock using ADB

If you connect cable into Maix-II Dock's USB OTG port, you will should be able to use adb commands

Check with adb devices -l

adb push opencv_python_headless-4.5.5.62-cp38-cp38-linux_armv7l.whl /root/
adb shell "pip install /root/opencv_python_headless-4.5.5.62-cp38-cp38-linux_armv7l.whl --upgrade"