Image Kernels Explained Visually
An image kernel is a small matrix used to apply effects like the ones you might find in Photoshop or Gimp, such as blurring, sharpening, outlining or embossing. They're also used in machine learning for 'feature extraction', a technique for determining the most important portions of an image. In this context the process is referred to more generally as "convolution" (see: convolutional neural networks.)
graphics  algo  math 
3 days ago
Drag and Swipe with RecyclerView
Part One: Basic ItemTouchHelper Example
3 days ago
RT : Another DTrace script: This one prints out TLS ciphers advertised by the clients.
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4 days ago
This racing game forces you to text while driving - Boing Boing
I am slightly terrified by this racing game that forces you to text while driving:
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9 days ago
fork() can fail: this is important
Do you know what happens when pid is -1? You really should. It's Important. Yes, with a capital I.
10 days ago
The Amazing Disappearing BSD License
Watch as, before your very eyes, the clauses of the BSD License magically vanish! This is just me dicking about trying to find the minimal open source license.
12 days ago
Some things you should know about Steam
What can we learn by data mining Steam for fun and profit.
12 days ago
Sass: Community Guidelines
We have & enforce our CoC

Everyone is welcome, except those who are unwelcoming — No matter how good their code is.
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13 days ago
Timing attack on arduino
I like Side Channels Attacks. It's a way to gather some information about your target (software, hardware device, web site) by a way (the channel) not directly related with the primary task of your target. These channels are unintentional consequences, or artifact, of the primary task.
14 days ago
A Practical Guide to SVGs on the web
RT : Probably the best SVG resource I’ve ever seen, by : “SVG on the Web — A Practical Guide”
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15 days ago
Encryption “would not have helped” at OPM, says DHS official | Ars Technica
Today I first encountered the term "COBOL encryption". I want to un-encounter it.
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15 days ago
Which Unicode character should represent the English apostrophe? (And why the Unicode committee is very wrong.)
The character you should use to represent the English apostrophe is U+02BC (MODIFIER LETTER APOSTROPHE). I’m here to tell you why why.
17 days ago
Why Golang is doomed to succeed
TL;DR Golang was explicitly engineered to thrive in projects built by large groups of programmers with different skill levels, and there is no larger such group than the open source community.
17 days ago
Fear and Loathing with APL
Hav­ing heard so much about APL from Phil Trelford (who is one of the lead­ers in the F# com­mu­nity) I decided to try it out too. For the unini­ti­ated, APL code looks every bit as mind-bending and unbe­liev­able as scenes from Johnny Depp’s Fear and Loathing in Las Vegas.
17 days ago
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