I\'ve been trying to install both OpenCV and cv2 from both Pycharm and from the terminal as suggested using:
pip install --user opencv
pip install --user cv2
You are getting those errors because opencv and cv2 are not the python package names.
These are both included as part of the opencv-python package available to install from pip.
If you are using python 2 you can install with pip:
pip install opencv-python
Or use the equivilent for python 3:
pip3 install opencv-python
After running the appropriate pip command your package should be available to use from python.