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Posts Tagged ‘computer vision’

Recently I uploaded a few little OpenFrameworks addons to Github; nothing special, but maybe someone could use them, so:

  • ofxVibe is a test implementation of the ViBE BG subtraction algorithm.
  • ofxIniParser, as its name suggests, is a tool for reading/writing ini files.
  • ofxBase64 is base64 encoder/decoder that includes a set of functions to embed/read ofPixels into xml files.
  • ofxAvailableSpace is just a quick way to check the available space in the file system.
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A few weeks ago I met a young designer interested in digitally augmented mirrors: in particular he was interested in messing with people faces. Since this is the kind of stuff I have some experience with, we ordered a couple drinks and brainstormed about how he could do this and that.
I ended up writing a little demo showing how to easily change parts of people’s face in realtime and, since I think it could be helpful for other people too, I wanted to share it and quickly explain how it works.
Basically I track the user’s face with Jason Saragih’s library and create a mesh that can be overlaid on the lower part of the tracker’s face mesh; then I can use this “partial mesh” to create a UV map from the user’s mouth expression, or to blend a saved mouth expression into the live feed.

You can find the source code on my github and here’s a video showing how it works:

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From December 8th till april 11th, the Victoria & Albert Museum is hosting a huge digital art/ generative media event called Decode. Aside of the main exposition, a few interesting multimedia gigs have been organized for the event; one of these was the OF Lab, some sort of hackathon where a group OpenFrameworks geeks / multimedia artists had 1 day and a half to get to know each other, start to work together and create a few installations inside the museum.
[full story after the break…]

(altro…)

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