How to remove all tourists from your travel shots
by Mark Frauenfelder from on (#129ER)
On Reddit, OmerRAnderson explains how to remove people from a photo. The idea is to put a camera on tripod and take several pictures every ten seconds or so over the course of a few minutes or more. Then open Photoshop and go to File > Scripts > Statistics, and select "median." This operation will remove the things that don't appear in every photo, leaving only the things that didn't move.