Latest Blog Posts
22 June 2015
Using ImageMagick without running out of RAM

For our research project we needed to use pHash to do some operations on a lot (tens of thousands) of image files. pHash uses ImageMagick internally, probably for simple operations such as resizing and changing the colour scheme. I am pretty familiar with errors such as these coming from convert or mogrify: convert.im6: no decode … Read more

3 May 2015
Screen scraping timetable data from a PeopleSoft Faculty Center

Our school moved to PeopleSoft for.. I’m not going there.. but that’s where everyone’s timetables are now. I thought maybe this big fancy company has an API to let me access the data but no, it’s basically impossible to access the API directly. So I was left with screen scraping, which I always wanted to … Read more

28 April 2015
Perceptual hash comparison: pHash vs Blockhash: false positives

I’ve been considering a project idea for Seneca’s partnership with Creative Commons. For that idea to work I would need a tool to create perceptual hashes from images that: Give true positive results when comparing images that were resized, and/or their colours changed. Give very few (near zero percent) false positive results. Too many false … Read more

Who is Andrew Smith?

And what's a solutions engineer? My goal in life is to design and develop solutions for people - to make them less frustrated, to give them better tools, to let them concentrate on more important things.

I'm an engineer specializing in Linux and open source software: I use it as a platform to create desktop, server, and embedded device applications, libraries, and services.

If you have a question about my work - by all means contact me, I'll be happy to talk to you about it.

Latest Website Update

Everyone's Timetable: an android app to share school timetables. Read more

Freedom Toaster

A kiosk that will burn open source software on people's blank disks for free. Read more