git rebase is a really powerful tool, but I always forget which commits
to pick and squash. Suppose your commit history looks like this:
bd7bf7d this is the commit message I want to keep
2313327 checkpoint commit 2
d4ac9ee checkpoint commit 1
c56d9c3 latest commit on master (don't change …In my last post, I talked about stitching panoramas with Photoshop. There is an open source application named Hugin that can do the same and more. It is dedicated panorama stitching software, so there are many more options available to you.
This guide uses Hugin 2016.2.0.
Hugin supports …
One of Photoshop's less frequently used features is the ability to stitch together photos into a panorama. Here's how you can go about making them.
This guide uses Photoshop CC 2017.1.1 on Windows 10.
In Photoshop, go to File -> Automate -> Photomerge.
The photomerge dialog will come up. You …
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 …
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 …