ImportError: DLL load failed while importing cv2

Installing OpenCV

To install a package in Jupyter Notebook, you can use the magic %pip command.

%pip install opencv-python

If the above command doesn't work on IPython < 7.3, you can try this command instead.

!pip install --user opencv-python

Demonstration

Let's see it in action. First, you insert a new cell, type in either of the two commands above, and then execute the cell using the Ctrl + Enter shortcut.

You should now be able to import and use OpenCV without any errors.

This is usually a dependency issue. Just .pyd is not enough (all .DLLs are required). On Windows add entries to .dll into PATH environment variable (not enough for Python 3.8 with updated security policies)