To install scikit-image (https://pypi.org/project/scikit-image/) use the following command:
$ pip install scikit-image
Alternatively, you can also install scikit-image for Conda-based distributions, as detailed in the specific section where this library is used.
To check if the installation has been performed correctly, just open a Python shell and try to import the scikit-image library as follows:
python
import skimage