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vux-doc-eyeswebvvvv

Eyesweb and vvvv interaction

Eyesweb is a software developped by infomus. It is also a node based software, but it more used for data analysis, specially motion tracking.
Eyesweb display capabilities are very limited, so making it interact with our favorite vvvv gives us the best of both worlds :).

Motion processing nodes

Eyesweb has a lot of Motion analysis nodes, here are some of the most interesting:

  • Background substration : Extracts shape, the basis of any analysis.
  • SMI : Calculates the quantity of motion compared to the last image (output as number and image)
  • ExtractMultColors: Same node as freeframe ColorTracker, tracks for specific colors
  • ExtractRegions: Similar as the Contour node, blob tracking.
  • Baricenter: Calculates the barycenter of an image.
  • CentroidsCalc: Extract a person features (head, hands,feet, knees...) from a shape.
  • CalculateHistogram: Calculates an image histogram (returns the percentage of each color level).
  • Contraction,Directness and Stability index: Computes cues from a Centroids extraction.

Communication Nodes

To be able to use the data received from Eyesweb in vvvv, we need to have both programs to be able to communicate.

This is the list of nodes to allow this.

  • OSC : Sends data using OSC protocol (UDP). Easy to use but data types are limited to number and string (so requires lot of patching to send list for example).
  • Midi: sends data as midi (Midi yoke is your friend there :).
  • SentToNetwork: Sends data using eyesweb custom protocol (Check the plugin page to have vvvv receiver nodes). Any datatype can be sent, but the server (vvvv here) needs to be started before the eyesweb patch (as it uses tcp).

To use sendtonetwork nodes, you can use go here to download Eyesweb server nodes: Eyesweb plugin.

by vux

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Shoutbox

~1d ago

domj: Stuck in your patching or eager to share what you made or came across? Join Midweek Patch Therapy at 17:30 https://therapy.domj.net/

~2d ago

david: vvvv meetup 3. new stream link. again youtube made us nuts.. please send everybody to https://youtu.be/pa3HRQ7kj6w

~2d ago

joreg: Reminder: Join us this evening, 8pm CET for the 3rd worldwide #vvvv meetup: 3.-worldwide-vvvv-meetup

~2d ago

sinus: @evvvvil: very impressive stuff! keep on marching the rays!You´ll never walk alone!

~3d ago

evvvvil: @mediadog, thankx for pointing it out broski. Wicked.

~4d ago

domj: Catching up with the Midweek Patch Therapy excerpts, expect more videos over the week. https://youtu.be/36r8LnHaS7g

~5d ago

mediadog: @evvvvil hey you made the webgl-dev-list cool stuff list: http://gfxprose.blogspot.com/2020/05/cool-webgl-stuff-2020-05-21.html

~6d ago

evvvvil: Yo I'm live doing a VJ set made in vvvv for OUTLINE demoparty with OddJohn DJing! Come see us play here: https://www.twitch.tv/outlinedemoparty/

~7d ago

domj: A blast to read with great references. Thoughts on how to make programming more learnable and understandable. http://worrydream.com/LearnableProgramming/

~8d ago

gegenlicht: @evvvvil damn. - missed it. Such unique styles, others would create 1000 twitter loops from one of ur sessions. :3 #bobrossmarch