Part of a series of examples from the CV cheat sheet. Click here for other computer vision applications.
Detecting straight lines in an image is a common task in computer vision. One way to do this is with the Hough (pronounced "Huff") transform. The math behind it is beyond the …
Computer vision is a broad field - there are many algorithms and it can be hard to tell what's the best way to attack a given problem. This aims to provide a guide on what to use.
You accidentally committed your secret key to version control, or the server got compromised, or you lost control of the secret key for some reason. Using an online service to generate one is a bad idea - nobody else should ever have your secret key. How do you generate a new …
The Force Awakens has a lot of shots that are callbacks to A New Hope - they evoke very particular scenes and shots, if not outright identical. That got me thinking about recycling shots in films. How could that be quantified?
A common task in image processing is finding sets of …
How to use: Hit Start/Stop to begin or pause the timer. At either the catch or the finish, hit 'Stroke'. You don't need the stopwatch running to calcuate rate. No downloads or app required!
If this was helpful to you …
Update: I'm changing the name of Virtual Cox to Fast Ergs. It now lives at fastergs.com. I'm using the name Virtual Cox for another project, coming spring 2017. You can subscribe for updates and to be notified when we launch here.
I'm pleased to announce the launch of a …
Some time ago, I wrote an interpreter for the language brainfuck. It's nice and all, but I thought, "you know what would really make this great? More inscrutable instructions!" How to extend it, though? It already has such a great feature set. You may remember it from hits such as …
Lens flare is an effect created by light reflecting internally in the lens of a camera. Whether it's good or bad is up to how it's used. Some filmmakers are notorious for this (looking at you, J.J. Abrams).
Inspired by needsmorejpeg, I created an app to take user-uploaded photos …
Update 06/14/16: It appears stats.nba.com has taken down the SportVU logs. However, neilmj has posted logs from the 2015-16 season on github, for games through January 23.
SportVU is a video system made by STATS Inc, used by teams to track movement of players and the …
Obfuscated urls stink. Being able to hover over a link and see where it goes is a tremendous feature of any modern browser. Use unshorten on your command line to see where they go. The project is at github. Put unshorten.py somewhere on your path and make it executable …