Visualize image distribution

Out:

/home/docs/checkouts/readthedocs.org/user_builds/seaborn-image/envs/v0.4.0/lib/python3.7/_collections_abc.py:841: MatplotlibDeprecationWarning:
The validate_legend_loc function was deprecated in Matplotlib 3.3 and will be removed two minor releases later.
  self[key] = other[key]

import seaborn_image as isns

img = isns.load_image("polymer")

f = isns.imghist(img, cmap="YlGnBu_r", dx=15, units="nm")