Image Stacking.

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I remember reading a tutorial a while ago whereby several images of a busy street scene were stacked together and then rendered in such a way to eliminate all the pedestrians.

I think there was a function/command called "average" used along the way but I can't for the life of me find the tutorial or remember how to replicate it.

Can anyone enlighten me?
 
There's a feature in Photoshop Elements for this - Photomerge Scene Cleaner

Not used it myself as I have CS 5, which would probably involve a lot of layers and masks.

First couple of tutorials I found on Google

http://www.youtube.com/watch?v=Gam-UPpS8AQ

http://digital-photography-school.com/clean-up-a-scene-in-photoshop-elements-in-6-easy-steps

Thanks MM, that's not quite the thing I was looking for, I too have CS5 and the tutorial wasn't that complicated from what I recall but it totally eludes me.
 
Try this put all your photos into photoshop stacked ontop of each other


Edit align layers (if needed)

Add a mask to each layer, and paint over each person with black on the layer mask. This will hide them and reveal what's underneath. Hopefully this will be an empty section of street on the photo below, if not repeat on the photo below etc
 
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Try this put all your photos into photoshop stacked ontop of each other


Edit align layers (if needed)

Add a mask to each layer, and paint over each person with black on the layer mask. This will hide them and reveal what's underneath. Hopefully this will be an empty section of street on the photo below, if not repeat on the photo below etc

Again, that's not quite what what I'm looking for.

The process was fully automated and I'm sure all you had to do was load the images into a stack and then in one of the menus there is a command called "average" and hey presto - no pedestrians.
 
I remember watching one of docs tutorials on Adobe TV, I think the stack option youre after is called "median".
 
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