edge detection

Let's face it - the only reason anyone ever reads Scientific American is to see how "shiny" the future is going to be.

edge detection

Postby TerraFrost » Wed Aug 01, 2007 7:37 pm

Say you have this photo:

Image

If you try to do normal edge detection, in Photoshop, you'll get this:

Image

Alternatively, if you use an alternative approach, you'll get this:

Image

The trick is to use a special camera that has four flashes instead of just the normal one. Makes me wonder if this could be used to make vector images of real life objects.

Here's the URL describing the technique:

http://photo.net/learn/technology/mflas ... photo.html
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Postby Rapscallion » Thu Aug 02, 2007 5:23 am

I looks cool, but I see no application for it aside from...

A.) Looking cool/artistic.
B.) Mapping out a skeleton, engine, or some other complex system.
:D
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Postby TerraFrost » Mon Aug 13, 2007 6:35 pm

Like I said, I think it'd also be good for converting real images to vector images (ie. infinitely scalable)

I mention that because...

http://www.csse.uwa.edu.au/~pk/Research/

Another edge detection approach that looks neat.

Also, this looks neat:

http://vis.berkeley.edu/papers/softscissors/

Not really edge detection, but still neat :)
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Postby Rapscallion » Tue Aug 14, 2007 12:34 am

I really like the whale image. :peace
:D
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