Hello.
The problem is that there is no opencv-python (and opencv-python-headless) wheel for ARM on PyPI.
The document says that
“Note that the wheel (especially manylinux) format does not currently support properly ARM architecture so there are no packages for ARM based platforms in PyPI.”
ref: https://github.com/skvark/opencv-python#frequently-asked-questions
So you should build opencv-python youself.
- Clone opencv-python repository.
git clone https://github.com/skvark/opencv-python.git
- Build opencv-python.
sudo python3 setup.py install
- (Optional) Install qt4 SDK if needed
Install qt4 SDK if an error is occured like ‘Could not found Qt4’.
sudo apt-get install qt4-default
- Install opencv-python-headless
Edit setup.py to build opencv-python-headless.
build_headless = get_build_env_var_by_name("headless")
to
build_headless = True
After that, install opencv-python-headless.
sudo python3 setup.py install
- Install imgaug.
pip3 install imgaug
These works for me.