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We certainly got a lot of feedback on our thumbnail-ification process. Try reading the twitter feed with the presentation: http://search.twitter.com/search?q=reddit+%23pycon

And we'll blog.reddit.com the video and embed the ppt once everything goes live. A big thanks to everyone who got up early for our talk.

If the thumbs were really cut off (hard to tell from the slides), you should use the Python OpenCV hooks and center the thumbnail on the likeliest face.

http://www.google.com/search?q=opencv+haar+cascade

A couple months ago, Ricardo Galli - spanish hacker and creator of the open-source reddit-like "Meneame" - posted an explanation of his algorithm for doing that.

Original link: http://gallir.wordpress.com/2009/01/04/encontrando-patrones-...

Poorly translated by Google: http://translate.google.com.pe/translate?u=http%3A%2F%2Fgall...

The presentations were all shot on video, so they should be online soon.