This remind me how the first picture of a human was being taken. Louis Daguerre took pictures of busy streets in Paris, but because the photographs had an expos

This remind me how the first picture of a human was being taken. Louis Daguerre took pictures of busy streets in Paris, but because the photographs had an exposure time of around 15 minutes, the streets looked empty. The exception was a guy that had his shoes shined, since he had been standing still for the period the picture was taken. http://petapixel.com/2010/10/27/first-ever-photograph-of-a-human-being/ http://petapixel.com/2010/10/27/first-ever-photograph-of-a-h... This can be considered a kind of analog filter (would this not be an average rather than median filter?)