Colorize black & white photos with machine learning for free!
Recently, the website My Heritage has made their automatic photo colorization service available for free (although you must still sign up for a free account). They are using machine learning algorithms trained against millions of photos, and the results are pretty amazing.
EDIT: Just looked into it, My Heritage is licensing DeOldify: https://github.com/jantic/DeOldify If you are technically inclined, here is a video of how to use DeOldify in a Google Colab notebook: https://www.youtube.com/watch?v=VaEl0faDw38
Shown here are 1) Yanagi Soetsu, Bernard Leach & Shoji Hamada, 2) George Ohr, 3) Gertrud and Otto Natzler, and 4) Lucie Rie.
If you have a bunch of black and white photos, you might want to try it out: