I am going through family history and a thought occurred to me.
If I have different pictures, how can I make sure that they are the same person?
After looking at a great deal of pages, software, etc I found PicTriev.
It gives you percentages of how similar two pictures are and if it
thinks it is the same person.
Measure similarity (how much they look alike) or identity
(whether they are from the same person) between two faces.
I think that this might be very useful as a history and research project ...