n.b. This is a very early draft of this post, expect typos, grammatical errors, factual inaccuracies, etc. One of the first things that became obvious while working on Vignette was the need to identify and group nearly duplicate images. Like myself, the friend who donated his photos to this project frequently takes multiple photos of the same scene in quick succession. This is a smart strategy – storage is cheap and it hedges against focus issues, exposure problems, and motion blur. However...