If you have been experimenting with the widely used OpenCV project, you may have found the StereoSGBM functionality that tries to find the difference between two images to find depth!Continue reading “Computer vision and insect vision – compared”
Another look at Zipf’s law, and you can chart it yourself!
In a previous post I showed some interesting facts about Zipf’s law and how many different things show a pattern of logarithmic decrease with the most popular or numerous item largely being much more so than the very rare ones – in a logarithmic pattern. Let’s look at that pattern and how you can chart it…Continue reading “Another look at Zipf’s law, and you can chart it yourself!”
FOSDEM – coming up this weekend!
NodeRed for Onstar access for GM/Chevy vehicle access
In recent years there has been a surge in popularity of Chevrolet vehicles like the Chevrolet Bolt and, coming soon, the Equinox EV. There has also been increased popularity for Linux phones like the Librem phone, but unfortunately there has been no equivalent for the “myChevrolet” app for your own computer or Linux-phone… unless you know where to look.Continue reading “NodeRed for Onstar access for GM/Chevy vehicle access”
MakerFaire Central Oregon 2022
This year’s MakerFaire had some great additions and some new booths… Check out a few of the highlights:Continue reading “MakerFaire Central Oregon 2022”
Knime conference coming up
Next week the KNIME fall conference will be happening, Nov 14-16. For mathematicians or anyone wanting to look at some useful AI/Machine learning tools, this should be an informative conference! I’ve seen some previous sessions with interesting demos and overviews of new features they add to this open-source tool. Virtual passes are free to the live-streamed event! If it is like past online lessons, it is likely they will also be available later from their Youtube channel page.
Plus codes as an easy location-sharing option
You may know of grid squares for general location in a ham radio contest, or the What3Words system with its easy access if you have network access, but there is another often-used location project you may not have heard of which is also easier than sharing a long latitude and longitude number!Continue reading “Plus codes as an easy location-sharing option”
Hacktoberfest is coming up
It’s that time of year again, with leaves falling, people getting in from the cold and wind and getting in to coding… Hacktoberfest is just a few days away!Continue reading “Hacktoberfest is coming up”
Puzzles – an open-source collection
Many mathematicians enjoy puzzles – and digging in to interesting code. Simon’s Puzzle collection is an open source collection of puzzles that any mathematician would enjoy:Continue reading “Puzzles – an open-source collection”
Packaging a Python application for ArchLinux/Manjaro Linux
In a previous howto I showed how to build a .deb installer file for a Python program. This would work for the majority of systems with Debian/Ubuntu/Linux Mint etc. However there are many users on Arch Linux or Manjaro, which do not take this .deb installer file. Some Linux computers such as the popular (and currently out of stock 🙁 ) Pinebook laptop, and Pinephone come with Manjaro Linux, which takes Arch packages. Thankfully there is an easy way to add a package to the AUR for these Arch-based devices.Continue reading “Packaging a Python application for ArchLinux/Manjaro Linux”