How do I convert a numpy array to (and display) an image?

by

The following should work:

from matplotlib import pyplot as plt
plt.imshow(data, interpolation='nearest')
plt.show()

If you are using Jupyter notebook/lab, use this inline command before importing matplotlib:

%matplotlib inline

A more featureful way is to install ipyml pip install ipympl and use

%matplotlib widget

see an example.

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