Harris shutter effect (day 23)

I read in an old photography about the Harris shutter and I thought it sounded really interesting. The Harris shutter is a way to shoot the same photo through a red, green and blue color filter. The effect of this is that the static elements in the photo will look normal and any elements that move during the exposure time will appear as a red, green or blue shadow. My first thought was to construct a physical Harris shutter but after a little research I found out it was possible to recreate the effect using a digital camera and shooting 3 photos, these where later combined into one that uses either the red, green or blue channel from each of the 3 photos. It is pretty easily done using GIMP using the workflow described here. This result in a black and white picture with color shadows.

These are my result using the technique.




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