{"id":352,"date":"2011-11-30T21:34:20","date_gmt":"2011-12-01T05:34:20","guid":{"rendered":"http:\/\/new.joyofprocessing.com\/blog\/?p=352"},"modified":"2015-11-04T13:08:16","modified_gmt":"2015-11-04T21:08:16","slug":"stipple-cam","status":"publish","type":"post","link":"https:\/\/joyofprocessing.com\/blog\/2011\/11\/stipple-cam\/","title":{"rendered":"Stipple Cam"},"content":{"rendered":"

I’ve been playing with stipple rendering, borrowing some ideas from Adrian Secord<\/a>. Here’s a still photo I processed with the technique, which resembles stipple portraiture.<\/p>\n

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\nI noticed, when reading Adrian’s very cool paper<\/a>, that the Centroidal Voronoi diagrams he describes produce essentially the same pattern as the repulsion field algorithm<\/a> I created a few years ago for my Coverpop website. While the patterns are essentially identical (producing a kind of blue noise), my algorithm is more efficient since it doesn’t need to do k-means clustering on every pixel. <\/p>\n

\nMy algorithm is a bit more like the avoidance part of Craig Reynold’s flocking algorithm<\/a> — it just operates on the centroids, which repel each other. I thought it might be suitable for using with a live webcam feed. <\/p>\n

\nThis is my first test with a webcam. The video is running at a faster frame rate than I’m actually able to achieve on my laptop, but I think I should be able to crank it up a bit with some work.<\/p>\n

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