To manipulate images in Python, you need the aptly named Python Imaging Library (PIL). Unfortunately, PIL development seems to have stopped sometime in 2009 and while it technically still works ...

napari is a free, open-source and extensible image viewer for arbitrarily complex (‘n-dimensional’) data that is tightly coupled to the Python programming language (see napari.org).

Iterating over All Images Missing Captions with Python. We need to add the following code at the end of the Pythia demo notebook we cloned from their site.