tl;dr

OpenCV is an Open Source computer vision library that, among other things, can recognize faces, including eyes and smiles.

I set out a few weeks ago to build some prototypes with the library, to get an idea of how it works. I have created 3 prototypes, one that detects faces, one that detects eyes and one that detects smiles. All the projects are on GitHub here and they all use Python 3.

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In February I finally got a Prusa i3 Mk3 3D printer that was ordered in December, a very late Xmas gift. I had struggled with a MakerBot Replicator previously, but based on my research, I had high hopes for the Mk3.

This is the story of the first few weeks of 3D printing and what I learned.

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tl;dr

I created a custom cabinet for my video game consoles, AV switch and Framemeister. Includes removable back panel to access and manage the cables.

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tl;dr

How to create a SSH tunnel in a Java app from a localhost port through a jump box to a specific port on a server. Allowing a connection to the remote server port as if it was a localhost port.

Examples found online provided only one ‘hop’, not the double ‘hop’ needed. The code below supports 2 hops, but in theory could be used to support any number of hops.

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The Why

I have a collection of USB keys each different version of OS X and Ubuntu so that I can do a complete reinstall from scratch. The collection was rattling around in my desk drawer, which was annoying.

What I really wanted was to put them in a case, ideally one that matched the other dvd and cd cases.

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This is a follow up to my setup notes for OS X, here are my notes to setup Kinect, OpenNI, NiTE and Nuimotion on Ubuntu Desktop LTS 12.04 Precise.

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Messing around with a Kinect, OpenNI, NiTE led me to a node.js app called Nuimotion.

In an effort to document successful install of all the required packages I created these instructions.

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Looking for a quick way to burn an ubuntu linux cdrom, I found this quick way of burning an iso image from the command line:

Apparently this will also do OS X dmg image files too.

For those like myself who like the command line tools, this is a good one to know about.

In order for the WordPress emails to go out properly, I had to setup Sendmail to connect to my Internet Service Providers SMTP server.

More details after the cut.

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