Several years ago I had a Mac application (don't remember the name) that had a plug-in named Neon. In one click it would do something similar to Gary007's image, except:
1. Everything in the photo except edges was turned black
2. The "neon tubes" were of varying primary colors, but somehow the plug-in knew which were related and colored them the same.
I saw a daytime photo of a building turned into a realistic simulation of how it would look at night if all the edges were neon tubes.
Is there anything like that for Paint.net?
Thank you.